干旱区生态环境知识资源中心(Arid): Sorghum in dryland: morphological, physiological, and molecular responses of sorghum under drought stress

Arid

DOI	10.1007/s00425-021-03799-7
	Sorghum in dryland: morphological, physiological, and molecular responses of sorghum under drought stress
	Abreha, Kibrom B.; Enyew, Muluken; Carlsson, Anders S.; Vetukuri, Ramesh R.; Feyissa, Tileye; Motlhaodi, Tiny; Ng'uni, Dickson; Geleta, Mulatu
通讯作者	Abreha, KB
来源期刊	PLANTA
ISSN	0032-0935
EISSN	1432-2048
出版年	2022
卷号	255 期号:1
英文摘要	Main conclusion Droughts negatively affect sorghum's productivity and nutritional quality. Across its diversity centers, however, there exist resilient genotypes that function differently under drought stress at various levels, including molecular and physiological. Sorghum is an economically important and a staple food crop for over half a billion people in developing countries, mostly in arid and semi-arid regions where drought stress is a major limiting factor. Although sorghum is generally considered tolerant, drought stress still significantly hampers its productivity and nutritional quality across its major cultivation areas. Hence, understanding both the effects of the stress and plant response is indispensable for improving drought tolerance of the crop. This review aimed at enhancing our understanding and provide more insights on drought tolerance in sorghum as a contribution to the development of climate resilient sorghum cultivars. We summarized findings on the effects of drought on the growth and development of sorghum including osmotic potential that impedes germination process and embryonic structures, photosynthetic rates, and imbalance in source-sink relations that in turn affect seed filling often manifested in the form of substantial reduction in grain yield and quality. Mechanisms of sorghum response to drought-stress involving morphological, physiological, and molecular alterations are presented. We highlighted the current understanding about the genetic basis of drought tolerance in sorghum, which is important for maximizing utilization of its germplasm for development of improved cultivars. Furthermore, we discussed interactions of drought with other abiotic stresses and biotic factors, which may increase the vulnerability of the crop or enhance its tolerance to drought stress. Based on the research reviewed in this article, it appears possible to develop locally adapted cultivars of sorghum that are drought tolerant and nutrient rich using modern plant breeding techniques.
英文关键词	Drought tolerance Germplasm Grain quality Sorghum Source-sink relations
类型	Review
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000729229800002
WOS关键词	BICOLOR L. MOENCH ; TRANSCRIPTION FACTOR FAMILY ; QUANTITATIVE TRAIT LOCI ; STAY-GREEN SORGHUM ; GRAIN-SORGHUM ; TRANSPIRATION EFFICIENCY ; CANOPY DEVELOPMENT ; WATER-STRESS ; LEAF-AREA ; TOLERANCE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374399
推荐引用方式 GB/T 7714	Abreha, Kibrom B.,Enyew, Muluken,Carlsson, Anders S.,et al. Sorghum in dryland: morphological, physiological, and molecular responses of sorghum under drought stress[J],2022,255(1).
APA	Abreha, Kibrom B..,Enyew, Muluken.,Carlsson, Anders S..,Vetukuri, Ramesh R..,Feyissa, Tileye.,...&Geleta, Mulatu.(2022).Sorghum in dryland: morphological, physiological, and molecular responses of sorghum under drought stress.PLANTA,255(1).
MLA	Abreha, Kibrom B.,et al."Sorghum in dryland: morphological, physiological, and molecular responses of sorghum under drought stress".PLANTA 255.1(2022).