| Genotypically Identifying Wheat Mesophyll Conductance Regulation under Progressive Drought Stress | |
| Olsovska, K; Kovar, M; Brestic, M; Zivcak, M; Slamka, P; Shao, HB; Shao, HB (reprint author), Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Prov Key Lab Agrobiol, Jiangsu Key Lab Bioresources Saline Soils, Nanjing, Jiangsu, Peoples R China.; Brestic, M (reprint author), Slovak Univ Agr Nitia, Fac Agrobiol & Food Resources, Dept Plant Physiol, Nitra, Slovakia.; Shao, HB (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China. Email:marian.brestic@gmail.com; shaohongbochu@126.com | |
| 发表期刊 | Frontiers in Plant Science
 |
| ISSN | 1664-462X |
| 2016-08-08 | |
| 卷号 | 7 |
| 关键词 | Photosynthesis Drought Mesophyll Conductance a(n)/c-i Carboxylation Efficiency Wheat |
| DOI | 10.3389/fpls.2016.01111 |
| 产权排序 | [Olsovska, Katarina; Brestic, Marian; Shao, Hong Bo] Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Prov Key Lab Agrobiol, Jiangsu Key Lab Bioresources Saline Soils, Nanjing, Jiangsu, Peoples R China; [Olsovska, Katarina; Kovar, Marek; Brestic, Marian; Zivcak, Marek] Slovak Univ Agr Nitia, Fac Agrobiol & Food Resources, Dept Plant Physiol, Nitra, Slovakia; [Slamka, Pavol] Slovak Univ Agr Nitia, Fac Acrobiol & Food Resources, Dept Agrochem & Plant Nutr, Nitra, Slovakia; [Shao, Hong Bo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China |
| 作者部门 | 海岸带生物学与生物资源利用所重点实验室 |
| 英文摘要 | Photosynthesis limitation by CO2 flow constraints from sub-stomatal cavities to carboxylation sites in chloroplasts under drought stress conditions is, at least in some plant species or crops not fully understood, yet. Leaf mesophyll conductance for CO2 (gm) may considerably affect both photosynthesis and water use efficiency (WUE) in plants under drought conditions. The aim of our study was to detect the responses of gm in leaves of four winter wheat (Triticum aestivum L.) genotypes from different origins under long-term progressive drought. Based on the measurement of gas exchange parameters the variability of genotypic responses was analyzed at stomata' (stomata closure) and non-stomatal (diffusional and biochemical) limits of net CO2 assimilation rate (AN). In general, progressive drought caused an increasing leaf diffusion resistance against CO2 flow leading to the decrease of AN, gm and stomatal conductance (g(s)), respectively. Reduction of gm also led to inhibition of carboxylation efficiency (Vc(max)). On the basis of achieved results a strong positive relationship between g(m) and g(s), was found out indicating a co regulation and mutual independence of the relationship under the drought conditions. In severely stressed plants, the stomatal limitation of the CO2 assimilation rate was progressively increased, but to a less extent in comparison to gm, while a non-stomatal limitation became more dominant due to the prolonged drought. Mesophyll conductance (g(m)) seems to be a suitable mechanism and parameter for selection of improved diffusional properties and photosynthetic carbon assimilation in 03 plants, thus explaining their better photosynthetic performance at a whole plant level during periods of drought. |
| 文章类型 | Article |
| 资助机构 | National Project of the Agency for Research and Development under the Ministry of Education in Slovakia(APVV-15-0721) ; One Hundred Talent Plan of Foreign Experts of Jiangsu Province(JSB2015005) |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | WATER-USE EFFICIENCY ; CARBON-ISOTOPE DISCRIMINATION ; PHOTOSYNTHETIC ELECTRON-TRANSPORT ; CO2 TRANSFER CONDUCTANCE ; EVERGREEN QUERCUS-ILEX ; LEAF GAS-EXCHANGE ; DIFFUSION CONDUCTANCE ; INTERNAL CONDUCTANCE ; C-3 PLANTS ; NONSTOMATAL LIMITATIONS |
| 研究领域[WOS] | Plant Sciences |
| WOS记录号 | WOS:000380922400001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/17026 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 通讯作者 | Brestic, M; Shao, HB (reprint author), Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Prov Key Lab Agrobiol, Jiangsu Key Lab Bioresources Saline Soils, Nanjing, Jiangsu, Peoples R China.; Brestic, M (reprint author), Slovak Univ Agr Nitia, Fac Agrobiol & Food Resources, Dept Plant Physiol, Nitra, Slovakia.; Shao, HB (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China. Email:marian.brestic@gmail.com; shaohongbochu@126.com |
| 推荐引用方式 GB/T 7714 | Olsovska, K,Kovar, M,Brestic, M,et al. Genotypically Identifying Wheat Mesophyll Conductance Regulation under Progressive Drought Stress[J]. Frontiers in Plant Science,2016,7. |
| APA | Olsovska, K.,Kovar, M.,Brestic, M.,Zivcak, M.,Slamka, P.,...&shaohongbochu@126.com.(2016).Genotypically Identifying Wheat Mesophyll Conductance Regulation under Progressive Drought Stress.Frontiers in Plant Science,7. |
| MLA | Olsovska, K,et al."Genotypically Identifying Wheat Mesophyll Conductance Regulation under Progressive Drought Stress".Frontiers in Plant Science 7(2016). |
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