文献类型： 外文期刊

作者： Gao, XP ¹ ; Yan, JY ² ; Liu, EK ² ; Shen, YY ² ; Lu, YF ² ; Zhang, DP ² ;

作者机构： 1.China Agr Univ, China State Key Lab Plant Physiol & Biochem, Beijing 100094, Peoples R China

2.China Agr Univ, China State Key Lab Plant Physiol & Biochem, Beijing 100094, Peoples R China; Shanxi Acad Agr Sci, Arid Farming Res Ctr, Taiyuan 030031, Peoples R China

关键词： Photosystem-ii complex;Abscisic-acid;Sugar-beet;Aldehyde;dehydrogenase;Foliar application;Glycine betaine;Binding-sites;Drying soil;Salt;Accumulation

期刊名称：JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY （ 影响因子：1.641； 五年影响因子：1.616 ）

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收录情况： SCI

摘要： Mild water stress significantly induced the accumulation of betaine in the leaves of young pear plants (Pyrus bretschneideri Rehd. 'Suly'). The betaine induced by water stress in mature leaves was maintained for about two weeks of re-watering after water stress, and gradually declined two weeks after the relief of water stress, dropping to the normal level one month later. Exogenously foliar-applied betaine slightly improved the shoot growth and the ability of the leaves to resist dehydration, alleviated wilting of leaves under water stress, and promoted recovery of leaves from wilting after re-watering. These findings indicate that the accumulated betaine induced by water stress was associated with drought tolerance in pear.