Chitinases are present in diverse form of organisms from bacteria, fungi, insects, plants. Plant chitinases are part of pathogenesis-related proteins. When plant (host) cells are under pathogen stress, plant chitinases are strongly expressed and hence plant chitinases play a critical part against fungal pathogens. Chitinases are also found to be involved in various abiotic stress responses like wounding, osmotic pressure, cold, heavy metal stress, salt in plants. Understanding of the plant chitinases will provide an insight for improving the pathogenic activity of various potential biocontrol strains and to develop novel pathogen resistant strategies for exploring their roles with regards to plant defense. The present review covers the detailed account of potential and relevance of plant chitinases for controlling pathogens infection in plant and prospecting to improve plant defense, growth and yield.
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http://dx.doi.org/10.1016/j.enzmictec.2022.110055 | DOI Listing |
J Evol Biol
January 2025
Laboratory of Walnut Research Center, College of Forestry, Northwest A & F University, Yangling, 712100 Shaanxi, China.
Walnut is a significant woody oil tree species that has been increasingly affected by anthracnose in recent years. Effective anthracnose control is crucial for walnut yield and quality, which requires a comprehensive understanding of the response mechanisms to Colletotrichum gloeosporioides. The PR10/Bet v1-like proteins are involved in defense against various disease, therefore, in this study, 7 JrBet v1s were identified from the walnut transcriptome (named JrBet v1-1~1-7), whose open reading frame (ORF) was 414~483 bp in length with isoelectric point ranging from 4.
View Article and Find Full Text PDFInt Microbiol
January 2025
Phytopathology Unit, Department of Plant Protection, Ecole Nationale d'Agriculture de Meknès, Km 10, Rte Haj Kaddour, BP S/40, 50001, Meknes, Morocco.
Olive trees are susceptible to various diseases, notably root rot caused by Pythium spp., which presents significant challenges to cultivation. Conventional chemical control methods have limitations, necessitating exploration of eco-friendly alternatives like biological control strategies.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Institute for Biology and Biotechnology of Plants, University of Münster, Schlossplatz 8, 48143 Münster, Germany. Electronic address:
Human chitinolytic enzymes trigger growing interest, not only because a wide range of diseases and allergic responses are linked to chitinous components of pathogens, including their interplay with human enzymes, but also due to the increasing use of chitosans in biomedical applications. Here, we present a detailed side-by-side analysis of the only two human chitinases, chitotriosidase and acidic mammalian chitinase, as well as human lysozyme. By analyzing the cleavage of well-characterized chitosan polymers and defined chitin and chitosan oligomers, we report mild processivity and a quantitative subsite preference typical for GH18 chitinases for chitotriosidase and acidic mammalian chitinase.
View Article and Find Full Text PDFPlanta
January 2025
Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Akademicka 2, P. O. Box 39A, 950 07, Nitra, Slovak Republic.
DbChitI-3, Drosera binata's acidic chitinase, peaks at pH 2.5 from 15 °C to 30 °C. Gene expression is stimulated by polysaccharides and suppressed by monosaccharide digestion, implying a feedback loop in its transcriptional regulation.
View Article and Find Full Text PDFPlants (Basel)
December 2024
College of Bee Science and Biomedicine, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
is an important medicinal herb; but its long-term cultivation often leads to continuous cropping problems. The underlying cause can be attributed to the accumulation of and alterations in root exudates; which interact with soil-borne pathogens; particularly ; triggering disease outbreaks that severely affect its yield and quality. It is therefore crucial to elucidate the mechanisms by which root exudates induce CCS043 outbreaks.
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