Alginate-derived oligosaccharides promote water stress tolerance in cucumber (Cucumis sativus L.)

Copyright © 2018 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 130(2018) vom: 10. Sept., Seite 80-88
1. Verfasser: Li, Jiaqi (VerfasserIn)
Weitere Verfasser: Wang, Xiaoyun, Lin, Xinpeng, Yan, Guofu, Liu, Lun, Zheng, He, Zhao, Bing, Tang, Jie, Guo, Yang-Dong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Alginate-derived oligosaccharides Cucumber (Cucumis sativus L.) Photosynthetic characters Stress-responsive genes Water stress Alginates Antioxidants Oligosaccharides Reactive Oxygen Species mehr... Water 059QF0KO0R Chlorophyll 1406-65-1
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100 1 |a Li, Jiaqi  |e verfasserin  |4 aut 
245 1 0 |a Alginate-derived oligosaccharides promote water stress tolerance in cucumber (Cucumis sativus L.) 
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520 |a Marine alginate-derived oligosaccharides (ADOs) are prepared from degraded alginate. Our experiments were carried out to determine the mechanism of ADOs to improve resistance to water stress in cucumber (Cucumis sativus L.). We evaluated the effects of ADOs on physiological indices, photosynthesis, reactive oxygen species (ROS) levels, antioxidant enzyme activities, and relative expression levels of drought resistance genes. The growth of drought stressed cucumber decreased markedly. However, treatment with ADOs significantly improved the diameter, fresh weight, photosynthetic rate, transpiration rate, stomatal conductance, maximum quantum yield of photosystem II (Fv/Fm) and chlorophyll degradation; thus, reversing the effects of drought stress. Moreover, the antioxidant levels and ROS scavenging enzyme activities also increased in response to the ADOs. Additionally, the genes involved in abscisic aid (ABA) signaling and the drought stress response, such as superoxide dismutase [Cu-Zn] (CsSOD(Cu-Zn)), the peroxidase superfamily protein (CsPOD3), ABA deficient 2 (CsABA2), responsive to ABA 18 (CsRAB18), abscisic acid insensitive 5 (CsABI5), responsive to dehydration 22 (CsRD22), and responsive to dehydration 29A (CsRD29A) were upregulated by ADOs. The ABA content was also improved by ADOs. Our results suggest that ADOs induced the expression of some antioxidant enzyme synthetic genes involved in the ABA signaling pathway by stimulating ABA synthesis to improve the drought resistance capacity in cucumber 
650 4 |a Journal Article 
650 4 |a Alginate-derived oligosaccharides 
650 4 |a Cucumber (Cucumis sativus L.) 
650 4 |a Photosynthetic characters 
650 4 |a Stress-responsive genes 
650 4 |a Water stress 
650 7 |a Alginates  |2 NLM 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Oligosaccharides  |2 NLM 
650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Chlorophyll  |2 NLM 
650 7 |a 1406-65-1  |2 NLM 
700 1 |a Wang, Xiaoyun  |e verfasserin  |4 aut 
700 1 |a Lin, Xinpeng  |e verfasserin  |4 aut 
700 1 |a Yan, Guofu  |e verfasserin  |4 aut 
700 1 |a Liu, Lun  |e verfasserin  |4 aut 
700 1 |a Zheng, He  |e verfasserin  |4 aut 
700 1 |a Zhao, Bing  |e verfasserin  |4 aut 
700 1 |a Tang, Jie  |e verfasserin  |4 aut 
700 1 |a Guo, Yang-Dong  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 130(2018) vom: 10. Sept., Seite 80-88  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnns 
773 1 8 |g volume:130  |g year:2018  |g day:10  |g month:09  |g pages:80-88 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2018.06.040  |3 Volltext 
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