Altered gibberellin and auxin levels in the ovaries in the manifestation of genetic parthenocarpy in tomato (Solanum lycopersicum)

被引：5

作者：

Hazra, P. ^{[1
]}

Dutta, A. K. ^{[2
]}

Chatterjee, Padma ^{[3
]}

机构：

[1] Bidhan Chandra Krishi Viswavidyalaya, Dept Vegetable Crops, Mohanpur 741252, India

[2] Ramkrishna Mission Vivekananda Univ, Integrated Rural & Tribal Dev & Management Fac, Ranchi 834008, Bihar, India

[3] Univ Kalyani, Dept Bot, Kalyani 741235, W Bengal, India

来源：

CURRENT SCIENCE | 2010年 / 99卷 / 10期

关键词：

Auxin; facultative parthenocarpy; gibberellic acid; ovary; tomato; FRUIT-DEVELOPMENT; NATURAL PARTHENOCARPY; POLLINATION; EXPRESSION; SEVERIANIN; ESCULENTUM; ACID; SET;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Precocious ovary development and altered gibberellin (GA) and auxin levels in the ovary of the pat-2 gene-induced facultative parthenocarpic line of tomato (Solanum lycopersicum L.) Oregon Pride was studied. Unpollinated 'Oregon Pride' ovaries showed marked development with 2.78-fold higher GA content at anthesis and 10.48-fold higher auxin content at 2-3 days before anthesis stage, than the ovaries of the non-parthenocarpic line Patharkuchi at the corresponding stages of the flower which might have triggered the precocious onset of cell division and elongation in the pericarp. Very low selfed and crossed seeds in the fruits of Oregon Pride indicated that marked higher GA and auxin concentration in the ovary leading to anticipated ovary growth and parthenocarpy might have resulted in impaired fertilization by either enhancing ovule abortion or reducing the pollen tube growth.

引用

页码：1439 / 1443

页数：5

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