Responses of gas exchange, chlorophyll synthesis and ROS-scavenging systems to salinity stress in two ramie ( Boehmeria nivea L.) cultivars

Verfasser / Beitragende:
[C. Huang, G. Wei, Y. Jie, J. Xu, S. Zhao, L. Wang, S. Anjum]
Ort, Verlag, Jahr:
2015
Enthalten in:
Photosynthetica, 53/3(2015-09-01), 455-463
Format:
Artikel (online)
ID: 605480648
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024 7 0 |a 10.1007/s11099-015-0127-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s11099-015-0127-0 
245 0 0 |a Responses of gas exchange, chlorophyll synthesis and ROS-scavenging systems to salinity stress in two ramie ( Boehmeria nivea L.) cultivars  |h [Elektronische Daten]  |c [C. Huang, G. Wei, Y. Jie, J. Xu, S. Zhao, L. Wang, S. Anjum] 
520 3 |a Ramie (Boehmeria nivea L.) is an important crop that serves as fine fiber material, high protein feedstuff, and valuable herbal medicine in China. However, increasing salinity in soil limits the productivity. We investigated in a greenhouse experiment responses to salinity in two ramie cultivars, Chuanzhu-12 (salt-tolerant cultivar, ST) and Xiangzhu-2 (salt-sensitive cultivar, SS), to elucidate the salt tolerance mechanism of this species. Salinity stress substantially reduced both chlorophyll and carotenoid contents. In addition, net photosynthesis, transpiration rate, stomatal conductance, intercellular CO2 concentration, and the ratio of intercellular CO2 to ambient CO2 were affected, less in ST. Nevertheless, salinity stress markedly improved water use efficiency and intrinsic water use efficiency in both species. Moreover, relative water contents, soluble proteins, and catalase activity were substantially impaired, while proline accumulation and superoxide dismutase activity were enhanced substantially, more in ST. Furthermore, noteworthy increase in peroxidase activity and decrease in malondialdehyde content was recorded in ST, whereas, in SS, these attributes changed conversely. Overall, the cultivar ST exhibited salt tolerance due to its higher photosynthetic capacity, chlorophyll content, antioxidative enzyme activity, and nonenzymatic antioxidants, as well as reduced lipid peroxidation and maintenance of the tissue water content. This revealed the salt tolerance mechanism of ramie plants for adaptation to salt affected soil. 
540 |a The Institute of Experimental Botany, 2015 
690 7 |a abiotic stress  |2 nationallicence 
690 7 |a photosynthesis  |2 nationallicence 
690 7 |a pigments  |2 nationallicence 
690 7 |a lipid peroxidation  |2 nationallicence 
690 7 |a antioxidant enzymes  |2 nationallicence 
690 7 |a Car : carotenoids  |2 nationallicence 
690 7 |a CAT : catalase  |2 nationallicence 
690 7 |a Chl a : chlorophyll  |2 nationallicence 
690 7 |a C i : intercellular CO2  |2 nationallicence 
690 7 |a C i/ C a : intercellular CO2 to ambient CO2 concentration ratio  |2 nationallicence 
690 7 |a E : transpiration rate  |2 nationallicence 
690 7 |a g s : stomatal conductance  |2 nationallicence 
690 7 |a MDA : malondialdehyde  |2 nationallicence 
690 7 |a P N : net photosynthesis  |2 nationallicence 
690 7 |a POD : peroxidase  |2 nationallicence 
690 7 |a RWC : relative water content  |2 nationallicence 
690 7 |a ROS : reactive oxygen species  |2 nationallicence 
690 7 |a SOD : superoxide dismutase  |2 nationallicence 
690 7 |a SS : salt-sensitive cultivar  |2 nationallicence 
690 7 |a ST : salt-tolerant cultivar  |2 nationallicence 
690 7 |a WUE : water-use efficiency  |2 nationallicence 
690 7 |a WUEi : intrinsic water-use efficiency  |2 nationallicence 
700 1 |a Huang  |D C.  |u Institute of Ramie, Hunan Agricultural University, Changsha, China  |4 aut 
700 1 |a Wei  |D G.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
700 1 |a Jie  |D Y.  |u Institute of Ramie, Hunan Agricultural University, Changsha, China  |4 aut 
700 1 |a Xu  |D J.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
700 1 |a Zhao  |D S.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
700 1 |a Wang  |D L.  |u College of Agronomy and Biotechnology, Southwest University, Chongqing, China  |4 aut 
700 1 |a Anjum  |D S.  |u College of Agronomy and Biotechnology, Southwest University, Chongqing, China  |4 aut 
773 0 |t Photosynthetica  |d The Institute of Experimental Biology of the Czech Academy of Sciences  |g 53/3(2015-09-01), 455-463  |x 0300-3604  |q 53:3<455  |1 2015  |2 53  |o 11099 
856 4 0 |u https://doi.org/10.1007/s11099-015-0127-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s11099-015-0127-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Huang  |D C.  |u Institute of Ramie, Hunan Agricultural University, Changsha, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wei  |D G.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Jie  |D Y.  |u Institute of Ramie, Hunan Agricultural University, Changsha, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xu  |D J.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhao  |D S.  |u Dazhou Institute of Agricultural Sciences, Sichuan, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D L.  |u College of Agronomy and Biotechnology, Southwest University, Chongqing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Anjum  |D S.  |u College of Agronomy and Biotechnology, Southwest University, Chongqing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Photosynthetica  |d The Institute of Experimental Biology of the Czech Academy of Sciences  |g 53/3(2015-09-01), 455-463  |x 0300-3604  |q 53:3<455  |1 2015  |2 53  |o 11099