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[Function of auxin-binding protein gene during cucumber fruit development]
Ji Gang Bai1, Xiu Juan Wang, Qian Xun Yin
1College of Life Science, Shandong Agricultural University, Taian 271018, China.
Shi Yan Sheng Wu Xue Bao
|March 26, 2005
Summary
Auxin-binding protein 1 gene plays a key role in cucumber fruit development. Enhancing its expression increased auxin sensitivity and promoted parthenocarpy in transgenic plants.
Area of Science:
- Plant molecular biology
- Plant reproductive biology
- Genetics
Context:
- Auxin is a critical plant hormone regulating fruit development.
- Understanding auxin's role in cucumber (Cucumis sativus) fruit set is important for agriculture.
- Auxin-binding proteins (ABPs) are involved in mediating auxin responses.
Purpose:
- To investigate the role of auxin-binding protein 1 (ABP1) in cucumber fruit development.
- To determine the expression patterns of the cucumber ABP1 gene during fruit set.
- To assess the effect of enhanced ABP1 expression on fruit development and auxin sensitivity.
Summary:
- A cDNA fragment encoding cucumber auxin-binding protein 1 (ABP1) was amplified.
- ABP1 expression was significantly upregulated in developing and enlarging ovaries post-pollination.
- Cucumber plants transformed with Arabidopsis ABP1 exhibited increased parthenocarpic rates and auxin sensitivity.
Impact:
- The study identifies cucumber ABP1 as a crucial gene in fruit development and set.
- Findings suggest ABP1 as a potential target for improving fruit yield through enhanced auxin signaling.
- This research contributes to understanding hormone-mediated fruit development mechanisms in plants.
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