Enhanced calcium uptake in micropropagated potato plantlets by macroelement dilution

被引：4

作者：

Abdulnour, JE

Donnelly, DJ

Barthakur, NN

机构：

[1] McGill Univ, Dept Nat Resource Sci, St Anne De Bellevue, PQ H9X 3V9, Canada

[2] McGill Univ, Dept Plant Sci, St Anne De Bellevue, PQ H9X 3V9, Canada

来源：

ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE | 1998年 / 161卷 / 01期

关键词：

D O I：

10.1002/jpln.1998.3581610113

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Ca deficiency disorders are common in micropropagated plantlets but little is known regarding the uptake of Ca in vitro. Ca uptake by in vitro-grown potato (Solanum tuberosum L. cvs. Bintje and Norland) plantlets was investigated when Ca levels were maintained but the total macroelement salts or just NH4, the major competing cation, were reduced in Murashige and Skoog (MS) medium. This increased the ratio of Ca:cations or Ca:NH4 as well as the osmotic potential of the medium. The increased Ca-cations improved Ca uptake of shoot tips, leaves, and stems while increased Ca:NH4 had no effect. MS medium macroelement dilution may improve Ca uptake by micropropagated plantlets and prevent Ca deficiency disorders.

引用

页码：81 / 85

页数：5