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科技导报
| 研究论文 2010, 28(15): 36-41
三种植物生长调节剂对甜椒幼苗抗寒性的协同诱导效应
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罗立津1,洪淑珠2,吴慧玲1,翁华钦2,李召虎1
作者信息
LUO Lijin1, HONG Shuzhu2, WU Huiling1, WENG Huaqin2, LI Zhaohu1
通讯作者:
罗立津
Cooperative Inducing Effects of Three Plant Growth Regulators on the Chilling Resistance of Sweet Pepper (Capsicum annuum) Seedlings
Affiliations
出版时间: 2010-07-13
文章导航
为验证冠菌素(COR)、脱落酸(ABA)和矿源黄腐酸(MFA)3种调节剂对提高甜椒抗寒性的协同效应,以甜椒为材料,采用砂培法,用三元复配剂(MIXII)和各种单剂进行灌根处理(10mL/株)并于低温(10~15℃)环境下生长60d后,分析低温(5℃,48h)胁迫下,幼苗生长、细胞质膜透性、渗透物质、植株体内活性氧代谢及其抗氧化酶活性的差异。结果表明,复配剂MIXII在低温环境下促进甜椒幼苗生长,同时3种调节剂对抗寒性有一定的协同诱导效应,表现为超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)活性显著提高,从而更加有效地清除体内的活性氧,其效果比使用单剂更为明显;并且MIXII在低温环境下通过 ABA的作用提高叶片脯氨酸、可溶性糖等渗透调节物质的含量,来减轻低温胁迫造成的伤害。
To study the cooperative inducing effects of coronatine (COR), abscisic acid (ABA), and mineral fulvic acid (MFA) on the chilling resistance of plants, the sandy culture method was used to identify the effects of mepiquat chloride on the lipid peroxidation, electrolyte leakage, reactive oxygen species and antioxidant enzyme activities in sweet pepper (Capsicum annuum) seedlings under cold stress. Sweet pepper seedlings were irrigated with 10mL per plant of COR, ABA, MFA, and their mixture, respectively. The seedlings were planted at temperature of 10~15℃ for 60d, and then cold stress under 5℃ for 48h. The growth of seedlings and the development of lateral roots were promoted by the mixture. The cooperative inducing effects of three plant growth regulators on the chilling resistance is remarkable. Under cold stress, the activities of antioxidant enzymes such as superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.11.1.6) and peroxidase (POD, EC 1.11.1.7) in leaves were increased. As a result, the efficiency of reactive oxygen species elimination was enhanced. With the higher content of proline and sugar as the effect of abscisic acid in the leaf, the harms of the membrane were relieved by the mixture.
plant growth regulator
/
sweet pepper (Capsicum annuum)
/
chilling resistance
/
stress physiology
罗立津;洪淑珠;吴慧玲;翁华钦;李召虎.
三种植物生长调节剂对甜椒幼苗抗寒性的协同诱导效应.
科技导报,
2010
, 28
(15)
: 36
-41
.
.
Cooperative Inducing Effects of Three Plant Growth Regulators on the Chilling Resistance of Sweet Pepper (Capsicum annuum) Seedlings[J].
Science & Technology Review ,
2010
, 28
(15)
: 36
-41
.
2010年第28卷第15期
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接收时间:2010-05-10
首发时间:2010-07-13
出版时间:2010-07-13
收稿日期:2010-05-10
修回日期:2010-07-27
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242120394447065565
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 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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