Increased potato tuber size resulting from apoplastic expression of a yeast invertase

被引：166

作者：

Sonnewald, U

Hajirezaei, MR

Kossmann, J

Heyer, A

Trethewey, RN

Willmitzer, L

机构：

[1] INST GENBIOL FORSCH BERLIN GMBH, D-14195 BERLIN, GERMANY

[2] INST PFLANZENGENET & KULTURPFLANZEUFORSCH, D-06466 GATERSLEBEN, GERMANY

[3] MAX PLANCK INST MOLEK PFLANZENPHYSIOL, D-14475 GOLM, GERMANY

来源：

NATURE BIOTECHNOLOGY | 1997年 / 15卷 / 08期

关键词：

agricultural biotechnology; Solanum tuberosum; sink strength; metabolic engineering;

D O I：

10.1038/nbt0897-794

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The role of sucrose cleavage in determining sink strength in potato was investigated by generating transgenic potato plants that expressed a yeast invertase in either the cytosol or apoplast of tubers. Cytosolic localization gave rise to a reduction in tuber size and an increase in tuber number per plant whereas apoplastic targeting led to an increase in tuber size and a decrease in tuber number per plant. Sink organ size can be manipulated through modification of sucrose metabolism.

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页码：794 / 797

页数：4

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