Mycorrhizal impact on osmotic adjustment in Ocimum basilicum during a lethal drying episode

被引：34
作者：
Kubikova, E [1 ]
Moore, JL [1 ]
Ownley, BH [1 ]
Mullen, MD [1 ]
Augé, RM [1 ]
机构：
[1] Univ Tennessee, Tennessee Agr Expt Stn, Knoxville, TN 37901 USA
来源：
JOURNAL OF PLANT PHYSIOLOGY | 2001年 / 158卷 / 09期
关键词：
arbuscular mycorrhiza; basil; dehydration tolerance; drought; water relations;
D O I：
10.1078/0176-1617-00441
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Arbuscular mycorrhizal symbiosis can Improve drought avoidance capabilities of plants, but the actual dehydration tolerance of mycorrhizal and nonmycorrhizal foliage has not been compared. In this study, leaves of mycorrhizal Ocimum basilicum plants developed lower, full-turgor psi (pi) than leaves of nonmycorrhizal plants during a lethal drought, indicative of greater active osmotic adjustment. This did not translate into increased drought resistance, as lethal leaf psi lethal soil psi (m) and length of the lethal drought episode were not affected by the symbiosis.
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页码：1227 / 1230
页数：4
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