期刊
PLANTS-BASEL
卷 11, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/plants11010012
关键词
beet cultivation; abiotic stress; alkaline; cold; heat; heavy metals; stress tolerance; ultraviolet radiation
Cultivated beets are important sources for various products and display tolerance to abiotic stresses. However, environmental factors negatively affect their growth and quality. Therefore, selecting stress-tolerant varieties and understanding their response mechanisms are crucial.
Cultivated beets (sugar beets, fodder beets, leaf beets, and garden beets) belonging to the species Beta vulgaris L. are important sources for many products such as sugar, bioethanol, animal feed, human nutrition, pulp residue, pectin extract, and molasses. Beta maritima L. (sea beet or wild beet) is a halophytic wild ancestor of all cultivated beets. With a requirement of less water and having shorter growth period than sugarcane, cultivated beets are preferentially spreading from temperate regions to subtropical countries. The beet cultivars display tolerance to several abiotic stresses such as salt, drought, cold, heat, and heavy metals. However, many environmental factors adversely influence growth, yield, and quality of beets. Hence, selection of stress-tolerant beet varieties and knowledge on the response mechanisms of beet cultivars to different abiotic stress factors are most required. The present review discusses morpho-physiological, biochemical, and molecular responses of cultivated beets (B. vulgaris L.) to different abiotic stresses including alkaline, cold, heat, heavy metals, and UV radiation. Additionally, we describe the beet genes reported for their involvement in response to these stress conditions.
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