Article(id=1276175885346665350, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1276175380184695804, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1000-2561.2024.09.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1704988800000, receivedDateStr=2024-01-12, revisedDate=1709222400000, revisedDateStr=2024-03-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1782193641268, onlineDateStr=2026-06-23, pubDate=1727193600000, pubDateStr=2024-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1782193641268, onlineIssueDateStr=2026-06-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1782193641268, creator=13701087609, updateTime=1782193641268, updator=13701087609, issue=Issue{id=1276175380184695804, tenantId=1146029695717560320, journalId=1235980609244409860, year='2024', volume='45', issue='9', pageStart='1761', pageEnd='1997', issueExtLink='null', onlineDate='null', pubDate='1727193600000', pubDateStr='2024-09-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1782193520816, creator='13701087609', updateTime=1782193908264, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1276177005326504448, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1276175380184695804, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1276177005326504449, tenantId=1146029695717560320, journalId=1235980609244409860, issueId=1276175380184695804, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1877, endPage=1885, ext={EN=ArticleExt(id=1276175886911140744, articleId=1276175885346665350, tenantId=1146029695717560320, journalId=1235980609244409860, language=EN, title=Response of Growth and Development of Anther Callus in Different Developmental Stages to Low Temperature in Hevea brasiliensis, columnId=1236256434120348225, journalTitle=Chinese Journal of Tropical Crops, columnName=Plant Cultivation, Physiology & Biochemistry, runingTitle=null, highlight=null, articleAbstract=

The anther regeneration system is the earliest in vitro tissue culture regeneration plant system of Hevea brasiliensis established in China, and the regenerated plants were named self-rooted juvenile clone, which have the advantages of rapid growth, high resistance as seedlings and genetic homogeneity as grafted seedlings, and yield increase by more than 20% due to rejuvenation. However, the buds collection period is only about 60 d per year, which does not allow for a year-round supply of callus formed by dedifferentiation anther wall cells, resulting in unsustainable research relying on this material. In this study, Reyan73397 stamens were utilized to study the callus induction and somatic embryogenesis of anther callus at different developmental periods (0 d, 7 d, 14 d, 21 d, 28 d, 35 d and 42 d), which were stored at two low temperatures of 15 ℃ and 20 ℃ for 15 d. The results showed that temperature 15 ℃ and 20 ℃ had no significant effect on the stages of callus induction and somatic embryogenesis after preservation, except that the number of embryogenic callus was significantly lower than that of the control the developmental period had significant effect on callus induction and somatic embryogenesis after preservation, and showed the greatest effect on the stage of cotyledonary embryo formation, of which the anther callus at 21 d and 35 d responded strongly, the number of cotyledonary embryos of 21 d anther callus was significantly higher than that of the control, and the number of cotyledonary embryos of 35 d anther callus was significantly lower than that of the control after preservation; the preservation of anther callus with different developmental periods for 15 d at 15 ℃ and 20 ℃ could extend the supply time of anther callus for 15~60 d, and primary cotyledonary embryos for 27-95 d compared to the control; the optimal solution was to keep the anther callus with developmental periods at 21 d at 15 ℃ and 20 ℃ for 15days, which could prolong the supply of anther callus and primary cotyledonary embryo for 60 days and 60-95 days separately. Although the treatment reduced the number of callus by 46.61%, it promoted the formation of cotyledon embryo by 27.18% in number. In this study, the short-term preservation of H. brasiliensis anther callus was realized, which would greatly alleviate the difficulty of insufficient source of genetic transformation receptors due to the short flowering period, the study time could be carried out for the whole year from 60 days to 240 days, which could help to speed up the research on optimization of the genetic transformation system of anther callus in Hevea brasiliensis.

, authors=null, authorsList=Mengao WANG, Na LI, Rizhi WU, Quannan ZHOU, Suna PENG, Xianfeng YANG, Tiandai HUANG, Changying ZENG, authorCompany=null, correspAuthors=Tiandai HUANG, Changying ZENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1276175890270778256, articleId=1276175885346665350, tenantId=1146029695717560320, journalId=1235980609244409860, language=CN, title=橡胶树不同发育时期花药愈伤生长发育对低温的响应, columnId=1236256434313286224, journalTitle=热带作物学报, columnName=作物栽培与生理生化, runingTitle=null, highlight=null, articleAbstract=

橡胶树花药再生体系是我国最早建立的橡胶树体胚植株再生技术体系,其产生的再生植株为自根幼态无性系,兼具实生苗生长迅速、抗逆性强和芽接苗遗传同质的优点,同时因发育时期从老态恢复至幼态,产量提升20%以上。然而每年花蕾采集期约为60 d,无法全年供应由花药壁细胞脱分化形成的愈伤组织,造成依托于该材料的研究无法持续进行。本研究以橡胶树品种热研73397雄蕊为材料,研究不同发育时期的花药愈伤(0、7、14、21、28、35、42 d)在15、20 ℃两个低温下保存15 d其愈伤诱导和体细胞胚发生发育的情况。结果表明:15 ℃和20 ℃两个温度对低温保存后愈伤诱导、体细胞胚发生各阶段除胚性愈伤数显著低于对照组外,其余无显著影响;发育时期对低温保存后愈伤诱导、体细胞胚发生各阶段均有显著影响(P<0.05),对子叶胚形成阶段影响最大,其中21 d和35 d花药愈伤组织经低温保存后其子叶胚数量分别显著高于和低于对照组子叶胚(P<0.05);15 ℃和20 ℃低温保存15 d后不同发育时期花药愈伤组织与对照组相比,可延长花药初代愈伤供应时间15~60 d,初代子叶胚供应时间27~95 d。最优方案为发育时期21 d的花药愈伤在15 ℃低温下保存15 d,可延长花药愈伤和初代子叶胚供应60 d和60~95 d,该处理虽降低了46.61%愈伤数,但促进了子叶胚形成,子叶胚数提高了27.18%。本研究实现了橡胶树花药愈伤的短期保存,有效解决了因花期短导致遗传转化受体来源不足的困难,全年3个花季可开展实验时间由60 d延长至240 d,有助于加快橡胶树花药愈伤遗传转化体系优化研究。

, authors=

王梦澳(1999—),女,硕士,研究方向:作物遗传育种。

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* 黄天带(HUANG Tiandai),E-mail:
曾长英(ZENG Changying),E-mail:
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2.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Haikou Key Laboratory of Tropical Plant Seedling Innovation / Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Cultivation & Physiology of Tropical Crops / State Key Laboratory Incubation Base for Cultivation and Physiology of Tropical Crops, Haikou, Hainan 571101, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276465490293821543, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, authorId=1276465489941500002, language=CN, stringName=王梦澳, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, 2, address=1.海南大学热带农林学院,海南海口 570228
2.中国热带农业科学院橡胶研究所/海口市热带植物种苗创新重点实验室/农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/省部共建国家重点实验室培育基地,海南海口 571101, bio={"content":"

王梦澳(1999—),女,硕士,研究方向:作物遗传育种。

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王梦澳(1999—),女,硕士,研究方向:作物遗传育种。

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3.College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1276465491518558317, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, authorId=1276465490688086121, language=CN, stringName=李娜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=2, 3, address=2.中国热带农业科学院橡胶研究所/海口市热带植物种苗创新重点实验室/农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/省部共建国家重点实验室培育基地,海南海口 571101
3.华中农业大学植物科学技术学院,湖北武汉 430070, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1276465489744367705, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, xref=2., ext=[AuthorCompanyExt(id=1276465489752756314, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489744367705, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Haikou Key Laboratory of Tropical Plant Seedling Innovation / Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Cultivation & Physiology of Tropical Crops / State Key Laboratory Incubation Base for Cultivation and Physiology of Tropical Crops, Haikou, Hainan 571101, China), 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Plant Growth Regul, 1994, 14: 229-234., articleTitle=Influence of low temperature preincubation on somatic embryogenesis and ethylene emanation from orchard grass leaves, refAbstract=null)], funds=[Fund(id=1276465512590741671, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, awardId=32271915, language=CN, fundingSource=国家自然科学基金项目(32271915), fundOrder=null, country=null), Fund(id=1276465512649461928, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, awardId=CARS33, language=CN, fundingSource=国家天然橡胶产业技术体系项目(CARS33), fundOrder=null, country=null), Fund(id=1276465512871760041, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, awardId=1630022022001, language=CN, fundingSource=中央级公益性科研院所基本科研业务费专项(1630022022001), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1276465489656287318, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, xref=1., ext=[AuthorCompanyExt(id=1276465489668870231, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489656287318, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.School of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China), AuthorCompanyExt(id=1276465489677258840, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489656287318, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.海南大学热带农林学院,海南海口 570228)]), AuthorCompany(id=1276465489744367705, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, xref=2., ext=[AuthorCompanyExt(id=1276465489752756314, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489744367705, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Haikou Key Laboratory of Tropical Plant Seedling Innovation / Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Cultivation & Physiology of Tropical Crops / State Key Laboratory Incubation Base for Cultivation and Physiology of Tropical Crops, Haikou, Hainan 571101, China), AuthorCompanyExt(id=1276465489761144923, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489744367705, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.中国热带农业科学院橡胶研究所/海口市热带植物种苗创新重点实验室/农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/省部共建国家重点实验室培育基地,海南海口 571101)]), AuthorCompany(id=1276465489832448093, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, xref=3., ext=[AuthorCompanyExt(id=1276465489836642398, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489832448093, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3.College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China), AuthorCompanyExt(id=1276465489845031007, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, companyId=1276465489832448093, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=3.华中农业大学植物科学技术学院,湖北武汉 430070)])], figs=[ArticleFig(id=1276465511194038431, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=EN, label=Fig. 1, caption=Growth status of anther calli at different developmental stage under different preservation temperatures

CK: Room temperature control group; A: Anther; B: Anther callus after preservation; C: Anther callus just transferred to embryo induction medium; D: Embryogenic callus; E: Cotyledonary somatic embryo.

, figureFileSmall=PkOzOsRYfTwdHxTpKq+LiQ==, figureFileBig=XCXhwXWukDUjy7o09Ru9lg==, tableContent=null), ArticleFig(id=1276465511282118816, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=CN, label=图1, caption=不同低温保存的花药愈伤在各发育阶段生长状况

CK:室温对照组;A:花药;B:低温保存后愈伤;C:刚转入出胚培养基花药愈伤;D:胚性愈伤;E:子叶胚。

, figureFileSmall=PkOzOsRYfTwdHxTpKq+LiQ==, figureFileBig=XCXhwXWukDUjy7o09Ru9lg==, tableContent=null), ArticleFig(id=1276465511617663137, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=EN, label=Fig. 2, caption=Growth of anther callus in different developmental stages after low temperature preservation

Different lowercase letters indicate significant difference among treatments (P<0.05).

, figureFileSmall=mukVlLir8Jw46HtqbQtsBw==, figureFileBig=gVbMyW83ev/JQebfXm8JrA==, tableContent=null), ArticleFig(id=1276465511688966306, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=CN, label=图2, caption=不同发育时期的花药愈伤低温保存后在各发育阶段生长状况

不同小写字母表示处理间差异显著(P<0.05)。

, figureFileSmall=mukVlLir8Jw46HtqbQtsBw==, figureFileBig=gVbMyW83ev/JQebfXm8JrA==, tableContent=null), ArticleFig(id=1276465511756075171, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=EN, label=Fig. 3, caption=Growth and development of anther callus in different developmental stages after low temperature preservation

Different lowercase letters indicate significant difference among treatments (P<0.05).

, figureFileSmall=ShHNOnoqk2esqSAFDkpzrA==, figureFileBig=SyfD/iwJkyKOwQqomPqxzg==, tableContent=null), ArticleFig(id=1276465512083230884, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=CN, label=图3, caption=低温不同时期花药愈伤组织生长发育过程

不同小写字母表示处理间差异显著(P<0.05)。

, figureFileSmall=ShHNOnoqk2esqSAFDkpzrA==, figureFileBig=SyfD/iwJkyKOwQqomPqxzg==, tableContent=null), ArticleFig(id=1276465512150339749, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=EN, label=Tab. 1, caption=

Effects of low temperature preservation on growth and development of anther callus at different developmental stages

, figureFileSmall=null, figureFileBig=null, tableContent=
温度Temperature/℃发育时期Developmental stage/d低温生长状况Low temperature growth regime愈伤诱导数Number of callus induction愈伤诱导率Callus induction rate/%胚性愈伤数Number of embryogenic callus胚性愈伤诱导率Induction rate of embryogenic callus/%体细胞胚数Somatic embryo number体细胞胚诱导率Somatic embryo induction rate/%子叶胚数Number of cotyledon embryos子叶胚获得率Acquisition rate of cotyledon embryo/%
150015.67±1.15g44.76±3.30g10.33±1.53g65.75±5.35cd31.00±3.00gh305.37±63.64ef11.67±1.53fg37.99±7.46bc
7027.67±1.53cd79.05±4.36cd11.67±1.53fg42.45±7.77f33.00±2.65g284.53±22.65f11.67±2.89fg35.06±5.75bcd
14029.00±1.00bc82.86±2.86bc19.00±1.00c65.53±3.01cd86.67±4.51c456.15±1.54b21.67±3.06e24.99±3.24de
21018.33±0.58f52.38±1.65f11.00±1.00fg59.94±3.93d57.33±3.06f523.64±49.02a29.67±3.06bc51.87±6.16a
28+33.33±0.58a95.24±1.65a24.00±1.00b71.98±2.02bc74.33±5.51d310.59±33.78ef23.67±3.21cde32.09±6.13bcd
35+33.67±0.58a96.19±1.65a13.67±1.15ef40.58±3.12f25.33±3.06h185.98±25.55g4.00±2.00hi16.6±10.12e
42++32.67±1.53a93.33±4.36a23.67±3.06b72.28±6.25bc87.33±5.51c372.35±43.96de22.33±5.03e25.4±4.25de
200030.33±1.15b86.67±3.30b15.33±1.53de50.50±3.76e67.33±3.06e440.75±25.17bc21.67±2.52e32.27±4.46bcd
7027.00±2.00de77.14±5.71de17.33±1.53cd64.16±1.28d65.67±2.52e381.6±47.06cd17.67±2.08ef26.86±2.22de
14+25.33±1.15e72.38±3.30e11.33±1.15fg44.66±2.59ef56.33±2.52f499.44±37.28ab9.67±2.08gh17.22±3.96e
21+34.33±1.15a98.10±3.30a27.33±0.58a79.65±2.36ab98.00±3.61b358.51±9.45de41.33±4.16a42.16±3.75ab
28+32.67±1.15a93.33±3.30a27.00±1.00a82.66±1.58a98.00±4.36b363.67±29.29de29.33±4.51bcd29.84±3.36cd
35++33.33±0.58a95.24±1.65a10.67±2.08g31.94±5.66g17.00±2.65i164.39±43.87g3.33±2.31i18.61±9.87e
42++34.67±0.58a99.05±1.65a25.00±1.00ab72.10±1.94bc125.0±7.94a500.68±39.71ab31.00±2.65b24.93±3.48de
室温CK+++34.33±0.58a98.10±1.65a25.33±1.53ab73.84±5.43b87.33±3.79c345.15±15.2def23.33±6.51de26.58±6.67de
), ArticleFig(id=1276465512452329638, tenantId=1146029695717560320, journalId=1235980609244409860, articleId=1276175885346665350, language=CN, label=表1, caption=

低温保存对不同发育时期的花药愈伤组织的生长发育情况影响

, figureFileSmall=null, figureFileBig=null, tableContent=
温度Temperature/℃发育时期Developmental stage/d低温生长状况Low temperature growth regime愈伤诱导数Number of callus induction愈伤诱导率Callus induction rate/%胚性愈伤数Number of embryogenic callus胚性愈伤诱导率Induction rate of embryogenic callus/%体细胞胚数Somatic embryo number体细胞胚诱导率Somatic embryo induction rate/%子叶胚数Number of cotyledon embryos子叶胚获得率Acquisition rate of cotyledon embryo/%
150015.67±1.15g44.76±3.30g10.33±1.53g65.75±5.35cd31.00±3.00gh305.37±63.64ef11.67±1.53fg37.99±7.46bc
7027.67±1.53cd79.05±4.36cd11.67±1.53fg42.45±7.77f33.00±2.65g284.53±22.65f11.67±2.89fg35.06±5.75bcd
14029.00±1.00bc82.86±2.86bc19.00±1.00c65.53±3.01cd86.67±4.51c456.15±1.54b21.67±3.06e24.99±3.24de
21018.33±0.58f52.38±1.65f11.00±1.00fg59.94±3.93d57.33±3.06f523.64±49.02a29.67±3.06bc51.87±6.16a
28+33.33±0.58a95.24±1.65a24.00±1.00b71.98±2.02bc74.33±5.51d310.59±33.78ef23.67±3.21cde32.09±6.13bcd
35+33.67±0.58a96.19±1.65a13.67±1.15ef40.58±3.12f25.33±3.06h185.98±25.55g4.00±2.00hi16.6±10.12e
42++32.67±1.53a93.33±4.36a23.67±3.06b72.28±6.25bc87.33±5.51c372.35±43.96de22.33±5.03e25.4±4.25de
200030.33±1.15b86.67±3.30b15.33±1.53de50.50±3.76e67.33±3.06e440.75±25.17bc21.67±2.52e32.27±4.46bcd
7027.00±2.00de77.14±5.71de17.33±1.53cd64.16±1.28d65.67±2.52e381.6±47.06cd17.67±2.08ef26.86±2.22de
14+25.33±1.15e72.38±3.30e11.33±1.15fg44.66±2.59ef56.33±2.52f499.44±37.28ab9.67±2.08gh17.22±3.96e
21+34.33±1.15a98.10±3.30a27.33±0.58a79.65±2.36ab98.00±3.61b358.51±9.45de41.33±4.16a42.16±3.75ab
28+32.67±1.15a93.33±3.30a27.00±1.00a82.66±1.58a98.00±4.36b363.67±29.29de29.33±4.51bcd29.84±3.36cd
35++33.33±0.58a95.24±1.65a10.67±2.08g31.94±5.66g17.00±2.65i164.39±43.87g3.33±2.31i18.61±9.87e
42++34.67±0.58a99.05±1.65a25.00±1.00ab72.10±1.94bc125.0±7.94a500.68±39.71ab31.00±2.65b24.93±3.48de
室温CK+++34.33±0.58a98.10±1.65a25.33±1.53ab73.84±5.43b87.33±3.79c345.15±15.2def23.33±6.51de26.58±6.67de
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橡胶树不同发育时期花药愈伤生长发育对低温的响应
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王梦澳 1, 2 , 李娜 2, 3 , 吴日智 2 , 周权男 2 , 彭素娜 2 , 杨先锋 2 , 黄天带 2, * , 曾长英 1, *
热带作物学报 | 作物栽培与生理生化 2024,45(9): 1877-1885
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热带作物学报 |作物栽培与生理生化 2024 , 45 (9) : 1877 -1885
橡胶树不同发育时期花药愈伤生长发育对低温的响应
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王梦澳1, 2, 李娜2, 3, 吴日智2, 周权男2, 彭素娜2, 杨先锋2, 黄天带2, * , 曾长英1, *
作者信息
  • 1.海南大学热带农林学院,海南海口 570228
  • 2.中国热带农业科学院橡胶研究所/海口市热带植物种苗创新重点实验室/农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/省部共建国家重点实验室培育基地,海南海口 571101
  • 3.华中农业大学植物科学技术学院,湖北武汉 430070
通讯作者:
* 黄天带(HUANG Tiandai),E-mail:
曾长英(ZENG Changying),E-mail:
Response of Growth and Development of Anther Callus in Different Developmental Stages to Low Temperature in Hevea brasiliensis
Mengao WANG1, 2, Na LI2, 3, Rizhi WU2, Quannan ZHOU2, Suna PENG2, Xianfeng YANG2, Tiandai HUANG2, * , Changying ZENG1, *
Affiliations
  • 1.School of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China
  • 2.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Haikou Key Laboratory of Tropical Plant Seedling Innovation / Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs / Hainan Key Laboratory for Cultivation & Physiology of Tropical Crops / State Key Laboratory Incubation Base for Cultivation and Physiology of Tropical Crops, Haikou, Hainan 571101, China
  • 3.College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
出版时间: 2024-09-25 doi: 10.3969/j.issn.1000-2561.2024.09.012
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橡胶树花药再生体系是我国最早建立的橡胶树体胚植株再生技术体系,其产生的再生植株为自根幼态无性系,兼具实生苗生长迅速、抗逆性强和芽接苗遗传同质的优点,同时因发育时期从老态恢复至幼态,产量提升20%以上。然而每年花蕾采集期约为60 d,无法全年供应由花药壁细胞脱分化形成的愈伤组织,造成依托于该材料的研究无法持续进行。本研究以橡胶树品种热研73397雄蕊为材料,研究不同发育时期的花药愈伤(0、7、14、21、28、35、42 d)在15、20 ℃两个低温下保存15 d其愈伤诱导和体细胞胚发生发育的情况。结果表明:15 ℃和20 ℃两个温度对低温保存后愈伤诱导、体细胞胚发生各阶段除胚性愈伤数显著低于对照组外,其余无显著影响;发育时期对低温保存后愈伤诱导、体细胞胚发生各阶段均有显著影响(P<0.05),对子叶胚形成阶段影响最大,其中21 d和35 d花药愈伤组织经低温保存后其子叶胚数量分别显著高于和低于对照组子叶胚(P<0.05);15 ℃和20 ℃低温保存15 d后不同发育时期花药愈伤组织与对照组相比,可延长花药初代愈伤供应时间15~60 d,初代子叶胚供应时间27~95 d。最优方案为发育时期21 d的花药愈伤在15 ℃低温下保存15 d,可延长花药愈伤和初代子叶胚供应60 d和60~95 d,该处理虽降低了46.61%愈伤数,但促进了子叶胚形成,子叶胚数提高了27.18%。本研究实现了橡胶树花药愈伤的短期保存,有效解决了因花期短导致遗传转化受体来源不足的困难,全年3个花季可开展实验时间由60 d延长至240 d,有助于加快橡胶树花药愈伤遗传转化体系优化研究。

橡胶树  /  遗传转化  /  花药愈伤  /  低温保存  /  体细胞胚发生

The anther regeneration system is the earliest in vitro tissue culture regeneration plant system of Hevea brasiliensis established in China, and the regenerated plants were named self-rooted juvenile clone, which have the advantages of rapid growth, high resistance as seedlings and genetic homogeneity as grafted seedlings, and yield increase by more than 20% due to rejuvenation. However, the buds collection period is only about 60 d per year, which does not allow for a year-round supply of callus formed by dedifferentiation anther wall cells, resulting in unsustainable research relying on this material. In this study, Reyan73397 stamens were utilized to study the callus induction and somatic embryogenesis of anther callus at different developmental periods (0 d, 7 d, 14 d, 21 d, 28 d, 35 d and 42 d), which were stored at two low temperatures of 15 ℃ and 20 ℃ for 15 d. The results showed that temperature 15 ℃ and 20 ℃ had no significant effect on the stages of callus induction and somatic embryogenesis after preservation, except that the number of embryogenic callus was significantly lower than that of the control the developmental period had significant effect on callus induction and somatic embryogenesis after preservation, and showed the greatest effect on the stage of cotyledonary embryo formation, of which the anther callus at 21 d and 35 d responded strongly, the number of cotyledonary embryos of 21 d anther callus was significantly higher than that of the control, and the number of cotyledonary embryos of 35 d anther callus was significantly lower than that of the control after preservation; the preservation of anther callus with different developmental periods for 15 d at 15 ℃ and 20 ℃ could extend the supply time of anther callus for 15~60 d, and primary cotyledonary embryos for 27-95 d compared to the control; the optimal solution was to keep the anther callus with developmental periods at 21 d at 15 ℃ and 20 ℃ for 15days, which could prolong the supply of anther callus and primary cotyledonary embryo for 60 days and 60-95 days separately. Although the treatment reduced the number of callus by 46.61%, it promoted the formation of cotyledon embryo by 27.18% in number. In this study, the short-term preservation of H. brasiliensis anther callus was realized, which would greatly alleviate the difficulty of insufficient source of genetic transformation receptors due to the short flowering period, the study time could be carried out for the whole year from 60 days to 240 days, which could help to speed up the research on optimization of the genetic transformation system of anther callus in Hevea brasiliensis.

Hever brasiliensis  /  genetic transformation  /  anther callus  /  low temperature preservation  /  somatic embryogenesis
王梦澳, 李娜, 吴日智, 周权男, 彭素娜, 杨先锋, 黄天带, 曾长英. 橡胶树不同发育时期花药愈伤生长发育对低温的响应. 热带作物学报, 2024 , 45 (9) : 1877 -1885 . DOI: 10.3969/j.issn.1000-2561.2024.09.012
Mengao WANG, Na LI, Rizhi WU, Quannan ZHOU, Suna PENG, Xianfeng YANG, Tiandai HUANG, Changying ZENG. Response of Growth and Development of Anther Callus in Different Developmental Stages to Low Temperature in Hevea brasiliensis[J]. Chinese Journal of Tropical Crops, 2024 , 45 (9) : 1877 -1885 . DOI: 10.3969/j.issn.1000-2561.2024.09.012
天然橡胶是重要的工业原料,更是不可或缺的战略物资,其主要来源于巴西橡胶树(Hevea brasiliensis)。现代遗传工程的发展、基因组编辑手段的精准改良加速了培育转基因橡胶树新品种的脚步,随之而来的对于转基因优质受体初代花药愈伤和初代子叶胚的持续供应成为不可忽视的问题。
橡胶树公开报道的遗传转化体系根据受体分为5种,原生质体[1]、易碎胚性愈伤组织[2]、花药愈伤组织[3-5]、次生胚[6],其中原生质体再生效率低[7],易碎胚性愈伤组织再生植株生长势弱[8],只有花药愈伤组织和次生胚具有商业应用价值。随着技术的不断进步,橡胶树花药愈伤组织的遗传转化效率在不断提高。然而花药愈伤组织为脱分化愈伤,胚性愈伤与非胚性愈伤混合,不能通过继代增殖,需要不断采集外植体,但花蕾来源严重受季节限制,全年可供采花时期短,不能为相应研究提供长期稳定的受体来源。本文研究了不同发育时期花药愈伤在15 ℃和20 ℃低温保存15 d后,对其愈伤诱导、体细胞胚发生和子叶胚形成的影响,为今后利用低温保存橡胶树初代花药愈伤组织,延长优质胚性愈伤组织、初代子叶胚供应时间,妥善保存橡胶树种质资源提供理论依据,为以初代花药愈伤或初代体细胞胚为受体的转基因研究供体保障提供技术支撑。
供试材料为大规模推广级品种橡胶树热研73397春季幼嫩雄花,采自位于海南省儋州市中国热带农业科学院橡胶研究所试验基地。
从健康的橡胶树上采集雄性幼花,将有花序的枝条用湿毛巾敷盖,塑料袋包裹储存,立即带回实验室。用镊子从花序中挑选黄绿色的胸花在75%的乙醇浸泡1 min,期间摇晃数次,无菌水冲洗1遍,随后用0.1%升汞浸泡10 min,期间晃动数次,无菌水冲洗3~5遍。无菌的超净工作台中,在显微镜下用解剖针剥开花蕾表皮取出完整雄花接种于培养皿中,每皿接种7个外植体。
共设置花药愈伤发育时期、保存温度2个影响因素。CK组为一直放置在室温(25±2)℃暗培养的花药愈伤组织。将经过无菌消毒的橡胶树雄花接种于M1[9]培养基中置于室温培养得到不同发育时期的花药愈伤组织(0、7、14、21、28、35、42 d),然后分别放置于15 ℃及20 ℃培养箱中暗培养15 d,观察低温处理前后花药愈伤的表型,随后放置室温暗培养。跟踪不同处理橡胶树花药愈伤组织发生及恢复情况,每10 d观察各发育时期的花药愈伤组织发生及恢复情况,30 d统计愈伤组织诱导率。CK组室温暗培养35 d后统计愈伤组织诱导率。愈伤组织诱导率=(花药愈伤组织数/低温培养的花药数)×100%。愈伤组织延长保存时间(d)=实验组花药从外植体接种至可转入至出胚培养基所需总天数-对照组花药从外植体接种至可转入出胚培养基所需总天数。每个处理5皿,每皿7个外植体,重复3次。
将上述各组花药愈伤组织转至体细胞胚诱导培养基M2[9]中,室温(25±2)℃暗培养60 d时统计再分化出体细胞胚的花药愈伤组织数(块),继续培养至120 d时观察并统计胚状体及子叶胚数量(个)。以一直置于室温暗培养的花药愈伤为CK组。胚性愈伤诱导率=(诱导出体细胞胚的愈伤数/接种愈伤数)×100%;体细胞胚诱导率=(体细胞胚总数/胚性愈伤数)×100%;子叶胚获得率=(子叶胚总数/体细胞胚总数)×100%。体细胞胚延长保存时间(d)=实验组从外植体接种至诱导出子叶胚所需总天数-对照组从外植体接种至诱导出子叶胚所需总天数。
试验数据主要采用Excel 2023和IBM SPSS Statistics 20软件进行整理、统计和分析。
结果表明:(1)不同发育阶段的花药愈伤组织在15 ℃低温下保存15 d,低温保存期间,发育时期为0、7、14、21 d的花药愈伤无生长迹象,发育时期为28、35、42 d的花药愈伤有一定生长,但较CK组均有不同程度延缓(表1)。愈伤外观与CK组相似,未出现明显冷害(图1B1、B2);(2)不同发育阶段的花药愈伤组织在20 ℃低温下保存15 d,低温保存期间,发育时期为0、7 d的花药愈伤无生长迹象,发育时期为14、21、28、35 d的花药愈伤生长情况较CK组均有不同程度延缓,发育时期为42 d的花药愈伤生长情况与CK组相当。愈伤外观与CK组相似,未出现明显冷害(图1B3、B4)。
室温条件下,花药愈伤诱导数为34.33个,诱导率为98.10%(表1)。
不同发育阶段的花药愈伤组织在15 ℃低温下保存15 d,结果表明,在愈伤诱导阶段,发育时期为28、35、42 d的花药愈伤诱导情况与CK组的差异不显著。发育时期为7、14 d的花药愈伤数及诱导率均显著下降(P<0.05),分别较CK组降低5~6个,15.24%和19.05%。发育时期为0、21 d的花药愈伤数及诱导率均大幅度下降,分别较CK组减少16~18个,45.72%和53.34%(表1)。
不同发育阶段的花药愈伤组织在20 ℃低温下保存15 d,结果表明,在愈伤诱导阶段,发育时期为21、28、35、42 d的花药愈伤与CK组无显著差异。发育时期为0、7、14 d的花药愈伤数及诱导率均显著下降(P<0.05),降幅分别为4~9个和11.43%~25.72%(表1)。
室温条件下,胚性愈伤数为25.33个,诱导率为73.84%(表1图1D)。
不同发育阶段的花药愈伤组织在15 ℃低温下保存15 d,结果表明,在胚性愈伤诱导阶段,发育时期为28、42 d的花药愈伤其胚性愈伤数、胚性愈伤诱导率与CK组无显著差异;其余5个发育时期与CK组相比,其胚性愈伤数与胚性愈伤诱导率均显著下降(P<0.05),降幅分别为6~15个和8.09%~33.26%(表1图1D1、D2)。
不同发育阶段的花药愈伤组织在20 ℃低温下保存15 d,结果表明,在胚性愈伤诱导阶段,发育时期为21、42 d花药愈伤的胚性愈伤数及胚性愈伤诱导率与CK组无显著差异;发育时期为28 d花药愈伤的胚性愈伤数与CK组无显著差异,胚性愈伤诱导率显著高于CK组(P<0.05);发育时期为0、7、14、35 d的花药愈伤其胚性愈伤数及胚性愈伤诱导率均显著低于CK组(P<0.05),降幅分别为8~14个和9.68%~41.90%(表1)。
室温条件下,体细胞胚数为87.33个,体细胞胚诱导率为345.15%(表1图1D)。
不同发育阶段的花药愈伤组织在15 ℃低温下保存15 d,结果表明,在体细胞胚发生阶段,发育时期为14、42 d的花药愈伤产生的体细胞胚数与CK组无显著差异,而其他5个发育时期花药愈伤产生的体细胞胚数较CK组显著下降,降幅为13~62个;发育时期为14、21 d的花药愈伤体细胞胚诱导率较CK组有显著提高(P<0.05),分别提高了111%和178.49%;发育时期为35 d的花药愈伤的体细胞诱导率显著降低(P<0.05),较CK组下降159.17%,而其余4个时期的花药愈伤体细胞胚诱导率与CK组无显著差异(表1图1D1、D2)。
不同发育阶段的花药愈伤组织在20 ℃低温下保存15 d,结果表明,在体细胞胚发生阶段,发育时期为21、28、42 d的花药愈伤体细胞胚数显著高于CK组(P<0.05),增幅为10~38个;发育时期为0、7、14、35 d的花药愈伤体细胞胚数较CK组显著下降(P<0.05),降幅为20~70个;发育时期为0、14、42 d的花药愈伤体细胞胚诱导率比CK组显著提高(P<0.05),增幅为95.60%~155.53%;发育时期为7、21、28 d的花药愈伤体细胞胚诱导率与CK组无显著差异;发育时期为35 d的花药愈伤的体细胞胚诱导率对比CK组下降180.76%,差异最为显著(P<0.05)(表1图1D3、D4)。
对照组的子叶胚数为23.33个,子叶胚获得率为26.58%(表1图1E)。
不同发育阶段的花药愈伤组织在15 ℃低温下保存15 d,结果表明,在子叶胚获得方面,发育时期为21 d的花药愈伤子叶胚数比CK组显著提高(P<0.05),较CK组多约6个,发育时期为14、28、42 d的花药愈伤子叶胚数与CK组无显著差异,发育时期为0、7、35 d的花药愈伤子叶胚数较CK组显著下降(P<0.05),降幅为11~19个;发育时期为0、21 d的花药愈伤子叶胚获得率对比CK组显著提高(P<0.05),分别较CK组提高了11.41%和25.29%,而其余5个发育时期的花药愈伤子叶胚获得率较CK组无显著差异(表1图1E1、E2)。
不同发育阶段的花药愈伤组织在20 ℃低温下保存15 d,结果表明,在子叶胚获得方面,发育时期为21、42 d的花药愈伤子叶胚数比CK组显著提高(P<0.05),分别较CK组增加约7个和18个,发育时期为0、7、28 d的花药愈伤子叶胚数与CK组无显著差异,发育时期为14、35 d的花药愈伤子叶胚获得数较CK组显著下降(P<0.05),分别较CK组减少约13和20个;发育时期为21 d的花药愈伤子叶胚获得率对比CK组显著性提高(P<0.05),较CK组提高了15.58%,而其余6个发育时期的花药愈伤子叶胚获得率与CK组无显著差异(表1图1E3、E4)。
图2表明,不同低温保存的花药愈伤在各发育阶段生长状况,15 ℃低温保存后的花药愈伤组织在胚性愈伤诱导阶段的胚性愈伤数较CK组显著下降(P<0.05),其余生长阶段与CK组无显著差异;20 ℃低温保存后的花药愈伤组织在各生长阶段与CK组均无显著差异。
图3表明,不同发育时期的花药愈伤低温保存后在各发育阶段生长状况,在愈伤诱导阶段(愈伤诱导数和愈伤诱导率),发育时期为28、35、42 d的花药愈伤组织与CK组无显著差异,而其余4个发育时期的花药愈伤组织较CK组显著下降;在胚性愈伤诱导阶段(胚性愈伤数和胚性愈伤诱导率),发育时期为28、42 d的花药愈伤组织与CK组无显著差异,而其余5个发育时期的花药愈伤组织较CK组显著下降(P<0.05),但其中发育时期为21 d的花药愈伤组织的胚性愈伤数显著下降(P<0.05),胚性愈伤诱导率与CK组确无显著差异;在体细胞胚诱导阶段,发育时期为14、21、28、42 d的花药愈伤组织的体细胞胚数与CK组无显著差异,而其余3个发育时期的体细胞胚数较CK组显著下降(P<0.05)、发育时期为14、21 d的花药愈伤组织的体细胞胚诱导率较CK组显著提高(P<0.05),发育时期为0、7、28、42 d的花药愈伤组织的体细胞胚诱导率与CK组无显著差异,发育时期为35 d的花药愈伤组织的体细胞胚诱导率较CK组显著下降(P<0.05);在子叶胚形成阶段,发育时期为21 d花药愈伤组织的子叶胚数较CK组显著提高(P<0.05),发育时期为0、28、42 d的花药愈伤组织的子叶胚数与CK组无显著差异,其余3个发育时期的花药愈伤组织的子叶胚数较CK组显著下降(P<0.05)、发育时期为0、21 d花药愈伤组织的子叶胚获得率较CK组显著提高(P<0.05),发育时期为7、14、28、42 d的花药愈伤组织的子叶胚获得率与CK组无显著差异,发育时期为35 d的花药愈伤组织的子叶胚获得率较CK组显著下降(P<0.05)。
花药愈伤组织是良好的遗传转化受体,马来西亚[10-12]、印度[4]、我国[13]均通过转化花药愈伤组织获得了转基因植株。然而花药愈伤组织为脱分化愈伤组织,不能通过继代增殖,需不断采集外植体。橡胶树花期集中,不同地区橡胶树一年开花2~3次,每次雄花花期20 d左右。室外采集外植体的另一个问题是污染率与气候密切相关,白粉病高发季节外植体污染率高达50%以上,而晴天外植体污染率低于10%。因此在晴天采集外植体诱导愈伤组织,并通过物理化学方式限制其生长,延长愈伤组织供应时间对遗传转化研究具有重要意义。
限制生长保存的方式有降低培养环境的氧气含量、添加渗透调节剂或生长抑制剂、胶囊化或脱水、降低培养温度[14],其中降低培养温度减慢细胞代谢活动的同时,存活率高、操作简单、方便,使用较多。橡胶树不同愈伤发育时期(0、7、14、21、28 d)、低温保存温度(15、20 ℃)可以延长花药初代愈伤供应时间15~60 d,子叶胚供应时间27~95 d。最优方案为发育时期为21 d的花药愈伤在15 ℃低温下保存15 d,可延长花药愈伤和初代子叶胚供应60 d和60~95 d,该处理虽然降低了46.61%愈伤数,但促进了子叶胚形成,子叶胚数提高了27.18%,达显著水平。说明以该处理低温保存的花药愈伤为侵染受体,在侵染量减少46.61%的情况下,其子叶胚数可提高27.18%,大大提高遗传转化工作效率。近年来,低温保存结合抗氧化剂、低含氧量等方法实现在胚性愈伤组织[15-16]、茎尖培养物[17]、花粉[18]、种子[19-20]、体细胞胚[21]、微型块茎[22]、带芽茎段[23]等组织、器官,植株[24]的中短期保存,保存温度在1~20 ℃,保存时间21 d至18个月。通过18 ℃+90 g/L蔗糖+2 mg/L ABA+10 μmol/(m2·s)低光照可保存枣椰体细胞胚10个月,存活率接近100%,体细胞胚增殖率高于室温[21]。通过4~5 ℃+抗氧化剂可保存橡胶树易碎胚性愈伤25 d,存活率与室温相近,且恢复后愈伤细胞活力更强,植株诱导率高于对照组50%,达显著水平[25]。但橡胶树易碎胚性愈伤组织诱导时间较长,再生植株生势弱,没有商业价值[8]
在15 ℃和20 ℃低温保存后,发育时期为21 d的花药愈伤子叶胚获得数和子叶胚获得率与对照组相比均有显著提高,子叶胚数分别提高了27.18%和77.15%。子叶胚获得率分别提高了25.29%和15.58%。而35 d的花药愈伤,15 ℃和20 ℃低温保存后,在愈伤发生阶段与对照组无显著差异,但在体细胞胚发生和子叶胚形成阶段与对照组差异显著,特别是子叶胚形成阶段,子叶胚获得数分别下降了82.85%和85.73%,子叶胚获得率分别下降了9.98%和7.97%,几乎无法获得子叶胚。橡胶树花药愈伤诱导和体细胞胚发生对温度非常敏感,在愈伤诱导和分化为球形原胚的过程,26 ℃体细胞胚数是24 ℃的2.86倍,而在球形原胚发育为子叶胚的过程,24 ℃的体细胞胚数是22 ℃的1.60倍,是28 ℃的1.25倍,且28 ℃导致正常胚比例下降[26]。橡胶树花药愈伤诱导子叶胚经历5步:外植体脱分化形成愈伤组织(0~21 d)、体细胞分化为胚性母细胞(21~28 d)、胚性母细胞经多次分裂为多细胞原胚(28~42 d)、多细胞原胚发育为球形胚(42~49 d)、球形胚进一步发育成子叶胚(52~72 d)[27]。因此,21 d处于体细胞分化为胚性母细胞时期,此时进行低温处理,有助于筛选掉胚性弱或畸形的胚性母细胞,提高正常胚性母细胞比例,这些细胞在后续发育为子叶胚过程,少了畸形胚的竞争,营养供应更充分,因此,21 d花药愈伤经低温处理后子叶胚数及子叶胚获得率大幅提高。而35 d的花药愈伤处于多细胞原胚阶段,对温度非常敏感,推测低温不利于胚性母细胞发育为多细胞原胚,因此低温处理后,35 d的花药愈伤体细胞胚数和子叶型体胚数及体细胞胚诱导率和子叶型体细胚诱导率大幅下降。低温提高正常胚比例在牡丹[28]、水曲柳[29]、大豆[30]、鸭茅草[31]也有发现。后续将通过解剖学进一步验证。
(1)在15 ℃和20 ℃低温保存15 d后愈伤诱导、体细胞胚发生各阶段除胚性愈伤数显著低于对照组外,其余指标与对照组无显著差异,15 ℃低温保存各阶段指标均低于20 ℃,但差异不显著;(2)发育时期对低温保存后愈伤诱导、体细胞胚发生各阶段均有显著影响,对子叶胚形成阶段影响最大,其中21 d花药愈伤组织经低温保存其子叶胚数量显著高于对照组,35 d花药愈伤组织经低温处理后子叶胚数量显著低于对照组(P<0.05)。(3)15 ℃和20 ℃低温保存15 d不同发育时期花药愈伤组织与对照组相比,可延长花药初代愈伤供应时间15~60 d,初代子叶胚供应时间27~95 d。最优方案为发育时期为21 d的花药愈伤在15 ℃低温下保存15 d,可延长花药愈伤和初代子叶胚供应60 d和60~95 d,该处理虽然降低了46.61%愈伤数,但促进了子叶胚形成,子叶胚数提高了27.18%。本研究实现了橡胶树花药愈伤的短期保存,有效解决了因花期短导致遗传转化受体来源不足的困难,全年3个花季延长受体(花药愈伤)供应时间180 d,加上花季60 d,全年可开展实验时间由60 d延长至240 d,有助于加快橡胶树花药愈伤遗传转化体系优化研究。
  • 国家自然科学基金项目(32271915)
  • 国家天然橡胶产业技术体系项目(CARS33)
  • 中央级公益性科研院所基本科研业务费专项(1630022022001)
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2024年第45卷第9期
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doi: 10.3969/j.issn.1000-2561.2024.09.012
  • 接收时间:2024-01-12
  • 首发时间:2026-06-23
  • 出版时间:2024-09-25
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  • 收稿日期:2024-01-12
  • 修回日期:2024-03-01
基金
国家自然科学基金项目(32271915)
国家天然橡胶产业技术体系项目(CARS33)
中央级公益性科研院所基本科研业务费专项(1630022022001)
作者信息
    1.海南大学热带农林学院,海南海口 570228
    2.中国热带农业科学院橡胶研究所/海口市热带植物种苗创新重点实验室/农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/省部共建国家重点实验室培育基地,海南海口 571101
    3.华中农业大学植物科学技术学院,湖北武汉 430070

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* 黄天带(HUANG Tiandai),E-mail:
曾长英(ZENG Changying),E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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