Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2018.03.026 |
Similarities and differences between the responses to osmotic and ionic stress in quinoa from a water use perspective | |
Miranda-Apodaca, Jon1; Yoldi-Achalandabaso, Ander1; Aguirresarobe, Aitor1; del Canto, Arantza2; Perez-Lopez, Usue1 | |
通讯作者 | Perez-Lopez, Usue |
来源期刊 | AGRICULTURAL WATER MANAGEMENT |
ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2018 |
卷号 | 203页码:344-352 |
英文摘要 | Faced with the consequences of climate change, such as increased drought and salinization of soils, the species Chenopodium quinoa may be a good alternative crop because of its high tolerance to these conditions and its high nutritional value. The objective of this work was to analyze the response of the quinoa plant in drought and salinity conditions. Under conditions of drought and severe saline stress (500 mM NaCl), highly similar reductions in growth and relative water content were observed. However, the strategies implemented by the plants in either stress condition and their relative importance were different. Under salt conditions, responses related to osmotic adjustment were more prominent than under drought conditions, where more dehydration was detected. In addition, despite a similar reduction in stomatal conductance in drought and saline conditions, a greater non-stomatal effect was observed in drought conditions, which was demonstrated by the fact that the intercellular CO2 concentration was increased. Moreover, the antioxidant metabolism also responded differently to the two stresses. Photoassimilate allocation was also different between treatments: the root/shoot ratio remained constant independent of salt concentration, whereas under drought conditions, this ratio increased. A similar trend between treatments was detected for water use efficiency, which was maintained under salt stress and increased under drought conditions, indicating that under reduced water conditions, quinoa can use lower amounts of water per unit of biomass production, These results suggest that C. quinoa could be irrigated with brackish or even higher salinity water without severely affecting the growth during its early growth stage, thereby making C. quinoa a promising alternative crop for arid and semi-arid regions. |
英文关键词 | Cltenopodium quince Drought Growth Photosynthesis Salt stress Water relations |
类型 | Article |
语种 | 英语 |
国家 | Spain |
收录类别 | SCI-E |
WOS记录号 | WOS:000434889800035 |
WOS关键词 | SALT-TOLERANCE MECHANISMS ; RADIATION USE EFFICIENCY ; GAS-EXCHANGE ; SALINITY TOLERANCE ; BARLEY PLANTS ; ANTIOXIDANT CAPACITY ; LIGHT-INTENSITY ; WHOLE-PLANT ; WILLD. ; DROUGHT |
WOS类目 | Agronomy ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207371 |
作者单位 | 1.Univ Basque Country, Dept Biol Vegetal & Ecol, Fac Ciencia & Tecnol, UPV EHU, Apdo 644, E-48080 Bilbao, Spain; 2.Univ Basque Country, Dept Biol Vegetal & Ecol, Fac Farm, UPV EHU, P Univ 7, Vitoria 01006, Spain |
推荐引用方式 GB/T 7714 | Miranda-Apodaca, Jon,Yoldi-Achalandabaso, Ander,Aguirresarobe, Aitor,et al. Similarities and differences between the responses to osmotic and ionic stress in quinoa from a water use perspective[J],2018,203:344-352. |
APA | Miranda-Apodaca, Jon,Yoldi-Achalandabaso, Ander,Aguirresarobe, Aitor,del Canto, Arantza,&Perez-Lopez, Usue.(2018).Similarities and differences between the responses to osmotic and ionic stress in quinoa from a water use perspective.AGRICULTURAL WATER MANAGEMENT,203,344-352. |
MLA | Miranda-Apodaca, Jon,et al."Similarities and differences between the responses to osmotic and ionic stress in quinoa from a water use perspective".AGRICULTURAL WATER MANAGEMENT 203(2018):344-352. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。