| Responses of leaf stomata to environmental stresses in distribution and physiological characteristics |
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| DOI：10.7606/j.issn.1000-7601.2010.02.25 |
| Key Words: stomatal distribution environmental stress stomatal conductance response |
| Author Name | Affiliation | | WANG BiXia | College of Life Sciences, China West Normal University, Nanchong, Sichuan 637002, China | | ZENG Yonghai | Yele Nature Reserve, Mianning, Sichuan 615600, China | | WANG Dayong | Yele Nature Reserve, Mianning, Sichuan 615600, China | | ZHAO Rong | Yele Nature Reserve, Mianning, Sichuan 615600, China | | XU Xiao | College of Life Sciences, China West Normal University, Nanchong, Sichuan 637002, China |
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| Abstract: |
| Based on different responses to stresses of drought, shade, salt, heavy metal and elevated CO2, distribution and physiological characteristics of leaf stomata were summarized, respectively. The results show that: (1) Water stress will increase stomatal density and decrease stomatal opening in most plants. However, st
omatal distribution will exhibit different results under the stresses because of diversity in species and stress degrees. (2) It has been reported in most plants that shade treatments will change the shape of stomata, decrease stomata number and stomata density, as well as induce lower stomatal conductance and net photosynthesis rate. (3) Salt stress will reduce leaf area and modify leaf structure, and increase stomatal density. Furthermore, the stomatal conductance and net photosynthesis rate will be decreased because of salt stress. (4) Although f
ew experiments were found to study the relationship between stomata and heavy metal treatments, it has been documented that heavy metal will induce plants to ex
hibit lower stomatal conductance and net photosynthesis rate in some plants. (5) Most documents show that shape and gas exchange of leaf will surfer significant
affects under elevated CO2 concentration. |
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