Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau
The chlorophyll fluorescence parameters of Kobresia humilis Serg. and Polygonum viviparum L. grown at two different altitudes (3 200 m, 3 980 m) were measured and the ultrastructure of chloroplasts were observed for studying the photosynthetic adaptability of plants to the influences of stress condi...
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ftchinacascnwipb:oai:210.75.249.4:363003/43447 2023-05-15T18:03:00+02:00 Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau Wei, J Yu, H Zhong, ZP Kuang, TY Ben, GY 2001-05-01 http://210.75.249.4/handle/363003/6937 http://210.75.249.4/handle/363003/17967 http://210.75.249.4/handle/363003/23063 http://210.75.249.4/handle/363003/28159 http://210.75.249.4/handle/363003/33255 http://210.75.249.4/handle/363003/38351 http://210.75.249.4/handle/363003/43447 unknown ACTA BOTANICA SINICA http://210.75.249.4/handle/363003/6937 http://210.75.249.4/handle/363003/17967 http://210.75.249.4/handle/363003/23063 http://210.75.249.4/handle/363003/28159 http://210.75.249.4/handle/363003/33255 http://210.75.249.4/handle/363003/38351 http://210.75.249.4/handle/363003/43447 期刊论文 2001 ftchinacascnwipb 2023-03-26T20:38:19Z The chlorophyll fluorescence parameters of Kobresia humilis Serg. and Polygonum viviparum L. grown at two different altitudes (3 200 m, 3 980 m) were measured and the ultrastructure of chloroplasts were observed for studying the photosynthetic adaptability of plants to the influences of stress conditions in alpine environment. Rfd-values, the vitality index, in leaves of K. humilis and P. viviparum grown at 3 980 m were higher than those at 3 200 m. The higher ratio of F-v/F-o and F-v/F-m in leaves of K. humilis and P. viviparum indicated that the rate of photosynthetic conversion of light energy increased at higher altitude. Ratios of F-v/F-o and F-v/F-m and Rfd-values in K. humilis were higher than that in P. viviparum grown at the same altitude. There were more irregular chloroplasts in leaves of both species grown at higher altitude. Many irregular chloroplasts such as swollen thylakoid, deformed chloroplast envelope, were observed in P. viviparum grown at 3 980 m, but few in K. humilis. These results were discussed in relation to the photosynthetic adaptability of alpine plants and the different adaptive competence between K. humilis and P, viviparum. Report Polygonum viviparum Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) |
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Northwest Institute of Plateau Biology: NWIPB OpenIR (Chinese Academy of Sciences) |
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ftchinacascnwipb |
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unknown |
description |
The chlorophyll fluorescence parameters of Kobresia humilis Serg. and Polygonum viviparum L. grown at two different altitudes (3 200 m, 3 980 m) were measured and the ultrastructure of chloroplasts were observed for studying the photosynthetic adaptability of plants to the influences of stress conditions in alpine environment. Rfd-values, the vitality index, in leaves of K. humilis and P. viviparum grown at 3 980 m were higher than those at 3 200 m. The higher ratio of F-v/F-o and F-v/F-m in leaves of K. humilis and P. viviparum indicated that the rate of photosynthetic conversion of light energy increased at higher altitude. Ratios of F-v/F-o and F-v/F-m and Rfd-values in K. humilis were higher than that in P. viviparum grown at the same altitude. There were more irregular chloroplasts in leaves of both species grown at higher altitude. Many irregular chloroplasts such as swollen thylakoid, deformed chloroplast envelope, were observed in P. viviparum grown at 3 980 m, but few in K. humilis. These results were discussed in relation to the photosynthetic adaptability of alpine plants and the different adaptive competence between K. humilis and P, viviparum. |
format |
Report |
author |
Wei, J Yu, H Zhong, ZP Kuang, TY Ben, GY |
spellingShingle |
Wei, J Yu, H Zhong, ZP Kuang, TY Ben, GY Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
author_facet |
Wei, J Yu, H Zhong, ZP Kuang, TY Ben, GY |
author_sort |
Wei, J |
title |
Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
title_short |
Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
title_full |
Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
title_fullStr |
Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
title_full_unstemmed |
Comparison of photosynthetic adaptability between Kobresia humilis and Polygonum viviparum on Qinghai Plateau |
title_sort |
comparison of photosynthetic adaptability between kobresia humilis and polygonum viviparum on qinghai plateau |
publishDate |
2001 |
url |
http://210.75.249.4/handle/363003/6937 http://210.75.249.4/handle/363003/17967 http://210.75.249.4/handle/363003/23063 http://210.75.249.4/handle/363003/28159 http://210.75.249.4/handle/363003/33255 http://210.75.249.4/handle/363003/38351 http://210.75.249.4/handle/363003/43447 |
genre |
Polygonum viviparum |
genre_facet |
Polygonum viviparum |
op_relation |
ACTA BOTANICA SINICA http://210.75.249.4/handle/363003/6937 http://210.75.249.4/handle/363003/17967 http://210.75.249.4/handle/363003/23063 http://210.75.249.4/handle/363003/28159 http://210.75.249.4/handle/363003/33255 http://210.75.249.4/handle/363003/38351 http://210.75.249.4/handle/363003/43447 |
_version_ |
1766173709322682368 |