Effect of sugars on auxin-mediated LeEXPA2 gene expression

被引：5

作者：

Arru, Laura ^{[1
]}

Rognoni, Sara ^{[2
]}

Poggi, Alessandra ^{[2
]}

Loreti, Elena ^{[3
]}

机构：

[1] Univ Modena, Dept Agr & Food Sci, I-42100 Reggio Emilia, Italy

[2] Univ Pisa, Dept Crop Plant Biol, I-56124 Pisa, Italy

[3] Inst Biol & Agr Biotechnol, I-56124 Pisa, Italy

来源：

PLANT GROWTH REGULATION | 2008年 / 55卷 / 01期

关键词：

auxin; elongation; expansin; lycopersicon esculentum; sugar sensing;

D O I：

10.1007/s10725-007-9252-5

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The paper deals with the effect of sugars on LeEXPA2 expression in tomato (Lycopersicon esculentum) hypocotyl segments, which is a well-studied system for analysis of cell elongation. We tested the interactions between sugars and different plant hormones classically known to be involved in plant growth. We found the induction of LeEXPA2 transcript accumulation to be positively affected by the presence of sucrose and other metabolizable sugars. The effect mediated by sorbitol and by a non-metabolizable glucose analogue (3-O-methyl glucose) is lower, while the structural analogue of sucrose, turanose, leads to any auxin-induced increase in LeEXPA2 transcript abundance.

引用

页码：11 / 20

页数：10

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