植物对硼元素的吸收与转运

Uptake and Transport of Boron in Plants

硼是植物生长所必须的微量元素。近年来,人们对硼在植物中的吸收与转运机制研究取得较大进展。本文就植物中硼进入细胞的途径、植物对缺硼和硼毒害耐性的遗传调控以及在细胞与组织中硼的定向转运等方面的研究概况进行了综述。在细胞水平,植物通过转运蛋白的极性定位实现对硼的吸收与转运;在植株水平,植物通过木质部与韧皮部实现硼在不同组织与不同发育阶段的转运分配。

Boron（B） is an essential nutrient for plant growth. In recent years, people have made great progress in the study of the absorption and transport mechanism of boron in plants. In this paper, pathway for boron entry into cell, the genetic regulation of the tolerance of boron deficiency and boron toxicity in plants, and directional transport of boron in cells and tissues were reviewed. At the cellular level, the uptake and transport of boron is realized by the polar localization of the plant. And at the whole plant level, the plants achieve the transfer of boron in different tissues and different stages of development through the xylem and phloem.