Characterization and molecular interpretation of the photosynthetic traits of Lonicera confusa in Karst environment.
Characterization and molecular interpretation of the photosynthetic traits of Lonicera confusa in Karst environment.
复制标题
喀斯特环境下忍冬光合特性的表征及分子解释
DOI：
10.1371/journal.pone.0100703
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Li M
中科院分区：
文献类型：
--
作者：
Wu G;Jia H;Huang Y;Gan L;Fu C;Zhang L;Yu L;Li M
山茱萸是一种适应我国喀斯特地区富钙环境的药用植物。对不同品种的光合作用、相对叶绿素含量、差异表达基因和差异表达蛋白质进行了研究。调查了石灰性土壤和砂岩土壤上栽培的相思树。结果表明，在不同的生长时期，叶绿素相对含量和净光合速率均高于对照。石灰性土壤中的钙含量远高于砂岩土壤中的钙含量，这可能是由于石灰性土壤中钙含量较高，保护了叶绿体免受伤害，因而表现出较高的光合速率。在石灰性土壤中，蒸腾速率和气孔导度降低，可能与气孔关闭有关。GeneFishing和蛋白质组学分析结果表明，DEGs和DEPs的表达对光合作用和气孔关闭至关重要，如RuBisCO、光合电子传递c和苹果酸脱氢酶等。在不同的土壤中栽培。进一步发现这些DEG或DEP直接或间接受钙传感器蛋白的调节。本研究丰富了对紫云英高净光合速率和低蒸腾作用的分子机理的认识。在石灰性土壤中有一定程度的栽培。
Lonicera confusa was a medical plant which could adapt to the Ca-rich environment in the karst area of China. The photosynthesis, relative chlorophyll content,differentially expressed genes (DEGs) and differentially expressed proteins (DEPs) of L. confusa that cultivated in calcareous and sandstone soils were investigated. The results showed that the relative chlorophyll content and net photosynthesis rate of L. confusa in calcareous soil are much higher than that planted in sandstone soil, the higher content of calcium might play a role in keeping the chloroplast from harm and showed higher photosynthesis rate. The transpiration and stomata conductance were decreased in calcareous soil, which might result from the closure of stomata. The GeneFishing and proteomic results showed that the expression of DEGs and DEPs were critical for photosynthesis and stomata closure, such as RuBisCO, photosynthetic electron transfer c and malate dehydrogenase varied in the leaves of L. confusa that cultivated in different soils. These DEGs or DEPs were further found to be directly or indirectly regulated by calcium sensor proteins. This study enriched our knowledge of the molecular mechanism of high net photosynthesis rate and lower transpiration of L. confusa that cultivated in the calcareous soil in some degree.
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作者：
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通讯作者：
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作者：
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作者：
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作者：
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通讯作者：
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DOI：
10.1073/pnas.0604882103
发表时间：
2006-08-29
影响因子：
11.1
作者：
Hu, Honghong;Dai, Mingqiu;Xiong, Lizhong
通讯作者：
Xiong, Lizhong