摘要
在适宜生长温度下，Ｃａ２＋主要分布于辣椒叶肉细胞间隙及细胞壁中；热胁迫后细胞间隙及其壁中Ｃａ２＋大量进入细胞质，叶绿体结构受到破坏后其中的Ｃａ２＋也释放出来，使细胞质中Ｃａ２＋浓度增高。热胁迫可能是通过诱导Ｃａ２＋在细胞中分布的变化而导致其受到伤害。
The changes of Ca2+ localization in mesophyll cells of pepper under heat stress were studied with electromicroscopiccytochemical method.When pepper grew at optimum temperature,it was shown that the Ca2+ distributed mainly within intercellular spaces and cell walls.When the plants were stressed by high temperature at 39,a great deal of Ca2+ located in cell walls and intercellular spaces moved into cytosol.Meanwhile,the chloroplasts were damaged and the Ca2+ released into cytosol.The increase of Ca2+ in cytosol under heat stress might be one of the reasons which made the mesophyll cells be injured.
出处
《园艺学报》
CAS
CSCD
北大核心
1999年第1期57-58,共2页
Acta Horticulturae Sinica
基金
国家自然科学基金
