Potassium nutrition of maize: Uptake, transport, utilization, and role in stress tolerance

IF 6 1区 农林科学 Q1 AGRONOMY
Meiling Zhang , Yingying Hu , Wu Han , Jian Chen , Jinsheng Lai , Yi Wang
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引用次数: 3

Abstract

Potassium (K) is an essential macronutrient for plant growth and development and influences yield and quality of agricultural crops. Maize (Zea mays) is one of the most widely distributed crops worldwide. In China, although maize consumes a large amount of K fertilizer, the K uptake/utilization efficiency (KUE) of maize cultivars is relatively low. Elucidation of KUE mechanisms and development of maize cultivars with higher KUE are needed. Maize KUE is determined by K+ uptake, transport, and remobilization, which depend on a variety of K+ channels and transporters. We review basic information about K+ channels and transporters in maize, their functions and regulation, and the roles of K+ in nitrogen transport, sugar transport, and salt tolerance. We discuss challenges and prospects for maize KUE improvement.

玉米钾营养:吸收、运输、利用及其在逆境抗性中的作用
钾是植物生长发育所必需的常量营养素,影响农作物的产量和品质。玉米(Zea mays)是世界上分布最广泛的作物之一。在中国,尽管玉米消耗了大量的钾肥,但玉米品种的钾吸收/利用效率(KUE)相对较低。需要阐明KUE机制并开发具有更高KUE的玉米品种。玉米KUE由K+的吸收、转运和再活化决定,这取决于多种K+通道和转运蛋白。我们综述了玉米K+通道和转运蛋白的基本信息,它们的功能和调节,以及K+在氮转运、糖转运和耐盐性中的作用。我们讨论了玉米KUE改良的挑战和前景。
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来源期刊
Crop Journal
Crop Journal Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
9.90
自引率
3.00%
发文量
638
审稿时长
41 days
期刊介绍: The major aims of The Crop Journal are to report recent progresses in crop sciences including crop genetics, breeding, agronomy, crop physiology, germplasm resources, grain chemistry, grain storage and processing, crop management practices, crop biotechnology, and biomathematics. The regular columns of the journal are Original Research Articles, Reviews, and Research Notes. The strict peer-review procedure will guarantee the academic level and raise the reputation of the journal. The readership of the journal is for crop science researchers, students of agricultural colleges and universities, and persons with similar academic levels.
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