首页|Barley with improved drought tolerance: Challenges and perspectives

Barley with improved drought tolerance: Challenges and perspectives

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.There is a pressing need to improve climate-resilient crops as a consequence of increasingly erratic climatic behavior that threatens global food security. Current scientific efforts aim to elucidate the complex mechanisms behind drought resistance in cultivated barley (Hordeum vulgare L ssp. vulgare). To develop new cultivars with enhanced tolerance to drought and ensure the well-being of the crop under adverse conditions. Understanding the impact of water stress on barley plants is a complex challenge due to the involvement of redundant regulatory pathways governed by multiple genes. Many of these pathways and associated major or genes controlling various morphological and physiological responses to drought at various stages of plant growth. Hence, a broad understanding of such molecular regulation is a key to developing barley cultivars with superior drought tolerance. In addition, changing breeding procedures to accommodate screening for drought responses is a major step. Justification of such changes should be based on expected outcomes. Our current understanding of drought regulatory pathways points out that improvement at both water extraction and its utilization are needed to elevate final yields under water deficit conditions. The current review is an in-depth review, that aims to develop a complete picture of the drought tolerance mechanisms in barley and to provide insights into the manipulation of drought stress responses in barley.

Climatic changeGenome-wide selectionMarker-assisted selectionPlant-Microbe interactionQTLsReactive oxygen speciesSalinityTranscriptional regulationWater deficiency

Elakhdar A.、Kubo T.、Solanki S.、Abed A.、Elakhdar I.、Khedr R.、Hamwieh A.、Capo-chichi L.J.A.、Abdelsattar M.、Franckowiak J.D.、Qualset C.O.

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Institute of Genetic Resources Faculty of Agriculture Kyushu University

Department of Agronomy Horticulture and Plant Science South Dakota State University

Department of Plant Biology Laval University

Land and Water Research Institute Agricultural Research Center

Crops Physiology Department Field Crops Research Institute Agricultural Research Center

International Center for Agriculture Research in the Dry Areas (ICARDA)

Department of Renewable Resources Faculty of Agriculture Life and Environmental Sciences University of Alberta

Faculty of Agriculture Alexandria University

Department of Agronomy and Plant Genetics University of Minnesota Twin Cities

Plant Sciences Department University of California

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2022

10.1016/j.envexpbot.2022.104965

Environmental and experimental botany

Environmental and experimental botany

SCI
ISSN：0098-8472
年,卷(期)：2022.201
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