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T. Chang is an endangered species from the family Theaceae endemic to China. It has been reduced to one remnant population with less than 200 individuals in Bajia region of Yangchun County, Guangdong Province. The species is listed as a Grade Two endangered plant for state protection in the Red Data Book of plants in China. A pot experiment was conducted to investigate the effect of indigenous Arbuscular Mycorrhizal (AM) inoculation on the seedling growth dynamics of E. excelsum under non-sterilized soil conditions. The individual height, survival rate, number of leaves and the content of photosynthetic pigments in the leaves were recorded. Moreover, the dynamic life table and survival curve of E. excelsum were also tabulated and analyzed. Results show that AM inoculation of E. excelsum seedling not only can increase the survival rate, but also may promote the height and leaves growth. Furthermore, the content of photosynthetic pigments in the leaves was increased after indigenous AMF inoculation, indicting the improvement of photosynthesis. The seedlings which inoculated AM have no obvious mortality during the first 48 weeks, while the survival curve of the control treatment belongs to Deevey-III, suggesting a high mortality rate in the early seedling growth stage. It is concluded that AM inoculation can promote E. excelsum seedling's growth and increase its environmental fitness. 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科技导报
|研究论文
2009
, 27
(0916) :
19
-25
非灭菌条件下丛枝菌根对猪血木幼苗生长的影响
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申仕康1 ,王杨2 ,王跃华1
作者信息
1. 云南大学生命科学学院2. 中国药科大学药学院
通讯作者:
王跃华
Effect of Arbuscular Mycorrhizal Inoculation on Seedling Growth of Euryodendron Excelsum Under Unsterilized Soil Conditions
Affiliations
出版时间: 2009-08-28
文章导航
以猪血木幼苗为研究对象,在非灭菌条件下进行幼苗接种丛枝菌根的盆栽试验。通过测定幼苗株高、叶片光合色素含量和叶片数生长动态,结合动态生命表和株高增长动态分析方法,探讨了非灭菌条件下丛枝菌根对濒危植物猪血木幼苗生长的影响。结果表明,与对照组相比,接种丛枝菌根提高了叶片光合色素的含量,显著提高了幼苗的存活率,促进幼苗的株高和叶片生长;动态生命表分析表明,接种丛枝菌根的幼苗在生长初期的48周中无明显的危险死亡期;对照组幼苗存活率曲线为Deevey-III型,幼苗在初期表现出较高的死亡率。故接种丛枝菌根能促进猪血木幼苗的生长,增强幼苗对环境的适应性,提高幼苗的存活率。研究结果为该濒危物种的有效保护和种群恢复提供了理论依据。
丛枝菌根
/
动态生命表
/
濒危植物
/
猪血木
/
种群恢复
Euryodendron excelsum H. T. Chang is an endangered species from the family Theaceae endemic to China. It has been reduced to one remnant population with less than 200 individuals in Bajia region of Yangchun County, Guangdong Province. The species is listed as a Grade Two endangered plant for state protection in the Red Data Book of plants in China. A pot experiment was conducted to investigate the effect of indigenous Arbuscular Mycorrhizal (AM) inoculation on the seedling growth dynamics of E. excelsum under non-sterilized soil conditions. The individual height, survival rate, number of leaves and the content of photosynthetic pigments in the leaves were recorded. Moreover, the dynamic life table and survival curve of E. excelsum were also tabulated and analyzed. Results show that AM inoculation of E. excelsum seedling not only can increase the survival rate, but also may promote the height and leaves growth. Furthermore, the content of photosynthetic pigments in the leaves was increased after indigenous AMF inoculation, indicting the improvement of photosynthesis. The seedlings which inoculated AM have no obvious mortality during the first 48 weeks, while the survival curve of the control treatment belongs to Deevey-III, suggesting a high mortality rate in the early seedling growth stage. It is concluded that AM inoculation can promote E. excelsum seedling's growth and increase its environmental fitness. The research results could provide a reference for the effective conservation and population recovery of this critically endangered species.
Arbuscular mycorrhizal
/
dynamic life table
/
endangered plant
/
Euryodendron excelsum
/
population recovery
申仕康;王杨;王跃华.
非灭菌条件下丛枝菌根对猪血木幼苗生长的影响.
科技导报,
2009
, 27
(0916)
: 19
-25
.
.
Effect of Arbuscular Mycorrhizal Inoculation on Seedling Growth of Euryodendron Excelsum Under Unsterilized Soil Conditions[J].
Science & Technology Review ,
2009
, 27
(0916)
: 19
-25
.
2009年第27卷第0916期
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接收时间:2009-05-27
首发时间:2009-08-28
出版时间:2009-08-28
收稿日期:2009-05-27
修回日期:2009-08-13
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242117078136717387
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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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