Wigoda Noa, Moshelion Menachem, Moran Nava
The R.H. Smith Institute of Plant Sciences and Genetics in Agriculture, The R.H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
The R.H. Smith Institute of Plant Sciences and Genetics in Agriculture, The R.H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel.
J Plant Physiol. 2014 May 15;171(9):715-22. doi: 10.1016/j.jplph.2013.12.017. Epub 2014 Mar 11.
Evidence has started to accumulate that the bundle sheath regulates the passage of water, minerals and metabolites between the mesophyll and the conducting vessels of xylem and phloem within the leaf veins which it envelops. Although potassium (K(+)) nutrition has been studied for several decades, and much is known about the uptake and recirculation of K(+) within the plant, the potential regulatory role of bundle sheath with regard to K(+) fluxes has just begun to be addressed. Here we have collected some facts and ideas about these processes.
有证据开始积累，表明维管束鞘调节其所包裹的叶脉中，叶肉与木质部和韧皮部的导管之间水、矿物质和代谢物的运输。尽管钾（K⁺）营养已经研究了几十年，并且对植物体内K⁺的吸收和再循环也有很多了解，但维管束鞘在K⁺通量方面的潜在调节作用才刚刚开始被探讨。在此，我们收集了一些关于这些过程的事实和观点。
