African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12500

Full Length Research Paper

Function of VtPGIP in pathogenic fungus resistance of Vitis thunbergii

Yanhong Liu
  • Yanhong Liu
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Zhen Zhang
  • Zhen Zhang
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Xinwei Wang
  • Xinwei Wang
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Sanhong Wang
  • Sanhong Wang
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Huaizhi Jia
  • Huaizhi Jia
  • Xiuzhou Bureau of Agricultural Economics, Jiaxing, China
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Hong Wang
  • Hong Wang
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Chang Dong
  • Chang Dong
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China; Department of Horticulture, Heilongjiang academy of Agricultural Science, Harbin, China
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Jiyu Zhang
  • Jiyu Zhang
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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Jianmin Tao
  • Jianmin Tao
  • College of Horticulture, Nanjing Agricultural University, 1st Weigang, Nanjing, China
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  •  Accepted: 12 November 2013
  •  Published: 19 February 2014

Abstract

In plants, polygalacturonase inhibitor proteins (PGIPs) are very important to inactivate polygalacturonases secreted by pathogens. Vitis thunbergii Sieb. et Zucc. polygalacturonase inhibitor proteins (VtPGIP) was first isolated from the wild grape Vitis thunbergii Sieb. et Zucc., which exhibits high resistance to disease. VtPGIP is sublocated in the plant cell wall, and this location is consistent with the function of PGIPs in the first line of host defense. The promoter of VtPGIP contains salicylic acid (SA), abscisic acid (ABA), and fungus infection response elements. Results from real-time quantitative reverse transcriptase (RT)-PCR analysis showed that VtPGIP expression was induced by SA, ABA, and fungi. The results indicated that VtPGIP may have important functions in defense-related responses of V. thunbergii against pathogenic fungi.

Key words: PGIP, disease resistance, pathogenic fungi, Vitis thunbergii.

Abbreviation

SA, Salicylic acid; ABA, abscisic acid; PGIP, polygalacturonase inhibitor protein; PG, polygalacturonase. VtPGIP, Vitis thunbergii Sieb. et Zucc. PGIP. 

Copyright © 2025 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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