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Molecular and Biological Properties of Snakins: The Foremost Cysteine-Rich Plant Host Defense Peptides

by Tao Su 1,2, Mei Han 1,*, Dan Cao 1 and Mingyue Xu 1
1
Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
2
Key Laboratory of State Forestry Administration on Subtropical Forest Biodiversity Conservation, Nanjing Forestry University, Nanjing 210037, China
*
Author to whom correspondence should be addressed.
J. Fungi 2020, 6(4), 220; https://doi.org/10.3390/jof6040220
Received: 24 August 2020 / Revised: 1 October 2020 / Accepted: 10 October 2020 / Published: 12 October 2020
(This article belongs to the Special Issue Antifungal Peptides 2020)
Plant host defense peptides (HDPs), also known as antimicrobial peptides (AMPs), are regarded as one of the most prevalent barriers elaborated by plants to combat various infective agents. Among the multiple classes of HDPs, the Snakin class attracts special concern, as they carry 12 cysteine residues, being the foremost cysteine-rich peptides of the plant HDPs. Also, their cysteines are present at very highly conserved positions and arranged in an extremely similar way among different members. Like other plant HDPs, Snakins have been shown to exhibit strong antifungal and antibacterial activity against a wide range of plant pathogens. Moreover, they display diversified biological activities in many aspects of plant growth and the development process. This review is devoted to present the general characters of the Snakin class of plant HDPs, as well as the individual features of different Snakin family members. Specifically, the sequence properties, spatial structures, distributions, expression patterns and biological activities of Snakins are described. In addition, further detailed classification of the Snakin family members, along with their possible mode of action and potential applications in the field of agronomy and pathology are discussed. View Full-Text
Keywords: snakin; gibberellic acid stimulated in arabidopsis (GASA); plant host defense peptides (HDPs); antimicrobial peptides (AMPs); hormone snakin; gibberellic acid stimulated in arabidopsis (GASA); plant host defense peptides (HDPs); antimicrobial peptides (AMPs); hormone
MDPI and ACS Style

Su, T.; Han, M.; Cao, D.; Xu, M. Molecular and Biological Properties of Snakins: The Foremost Cysteine-Rich Plant Host Defense Peptides. J. Fungi 2020, 6, 220.

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