| 缺硫对脐橙叶片光合特性和叶绿素荧光参数的影响 |
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| 引用本文： | 陈屏昭,王磊.缺硫对脐橙叶片光合特性和叶绿素荧光参数的影响[J].生态学杂志,2006,25(5):503-506. |
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| 作者姓名： | 陈屏昭 王磊 |
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| 作者单位： | 昭通师范高等专科学校,昭通,657000 |
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| 摘 要： | 采用营养液培养的方法,对缺硫脐橙叶片的光合特性进行了研究。结果表明,在缺硫情况下,脐橙叶片的净光合速率(Pn)、光呼吸速率(Pr)、光合色素含量、可溶性蛋白质含量、初始荧光(Fo)、光化学效率(Fv/Fm)、最大荧光(Fm)和电子传递速率(ETR)显著下降,而光呼吸/光合比(Pr/Pn)显著升高。缺硫脐橙植株的光合能力降低,可能是叶绿体发育不全或特性功能蛋白含量不足所致。
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| 关 键 词： | 脐橙 缺硫胁迫 光合特性 叶绿素荧光 |
| 文章编号： | 1000-4890(2006)05-0503-04 |
| 修稿时间： | 2005年5月21日 |
Effects of sulfur deficiency on photosynthesis and chlorophyll fluorescence of Citrus sinensis Osbeck leaves |
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| CHEN Pingzhao,WANG Lei.Effects of sulfur deficiency on photosynthesis and chlorophyll fluorescence of Citrus sinensis Osbeck leaves[J].Chinese Journal of Ecology,2006,25(5):503-506. |
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| Authors: | CHEN Pingzhao WANG Lei |
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| Abstract: | The study with solution culture showed that under sulfur deficiency,the net photosynthetic rate(Pn),photorespiration rate(Pr),photosynthetic pigment content,soluble protein content,original fluorescence(Fo),photochemical efficiency(Fv/Fm),maximum fluorescence(Fm),and electron transmit rate(ETR) of Citrus sinensis Osbeck leaves declined markedly,while Pr/Pn increased obviously.The depress of C.sinensis Osbeck leaves photosynthetic ability under sulfur deficiency could be resulted from the disfigurement of chloroplast growth or the deficiency of characterizing functional protein. |
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| Keywords: | Citrus sinensis Osbeck sulfur deficiency stress photosynthetic characteristics chlorophyll fluorescence |
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