Effect of a brassinosteroid analogue and high temperature stress on leaf ultrastructnre of Lycopersicon esculentum

被引：8
作者：
Sam, O [1 ]
Núñez, M
Ruiz-Sánchez, MC
Dell'Amico, J
Falcón, V
De la Rosa, MC
Seoane, J
机构：
[1] Inst Nacl Ciencias Agr, Dept Fisiol & Bioquim Vegetal, La Habana 32700, Cuba
[2] Ctr Edafol & Biol Aplicada Segura, Dept Riego & Salinidad, Murcia 30080, Spain
[3] Ctr Ingn Genet & Biotecnol, Dept Microscopia Elect, La Habana 10600, Cuba
来源：
BIOLOGIA PLANTARUM | 2001年 / 44卷 / 02期
关键词：
biostimulator; chloroplast; tomato; ultrastructure;
D O I：
10.1023/A:1010291124178
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The ultrastructure of tomato leaf disks treated with a biostimulator (0.01 mg dm(-3) BB6, brassinosteroid analogue from Cuba), and subjected to high temperature (40 degreesC for 1.5 h) was studied. High temperature stress caused the appearance of granules in the nucleus, nucleolus and cytoplasm. In chloroplasts and in mitochondria the internal membrane system was disorganised and in chloroplasts some starch granules were detected. These symptoms were more marked in the cells treated with BB6. The influence of BB6 on the ultrastructure of leaf cells was apparent also before being subjected to heat stress.
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页码：213 / 218
页数：6
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