Trichoderma Secondary Metabolites Active on Plants and Fungal Pathogens

Abstract

Beneficial microbes typically produce bioactive molecules that can affect the interactions of plants with their pathogens. Many secondary metabolites may also have antibiotic properties, which enable the producing microbe to inhibit and/or kill other microorganisms i.e. competing for a nutritional niche. Indeed, some of these compounds have been found to play an important role in the biocontrol of plant diseases by various beneficial microbes used worldwide for crop protection and bio-fertilization. In addition to direct toxic activity against plant pathogens, biocontrol-related metabolites may also increase disease resistance by triggering systemic plant defence activity, and/or enhance root and shoot growth. Fungi belonging to the Trichoderma genus are well known producers of secondary metabolites with a direct activity against phytopathogens and compounds that substantially affect the metabolism of the plant. The widescale application of selected metabolites to induce host resistance and/or to promote crop yield may become a reality in the near future and represents a powerful tool for the implementation of IPM strategies.

Tarımsal Üretimde Yararlanılan Trichoderma Ürünleri ve Metabolitleri

“…atroviride'nin endo (ech42) ve exo-(nag70) kitinazlarının elmada ko-ekspresyonu, Venturia inaequalis'te artmış rezistan ile korele edilmiştir. Benzer şekilde, iki kitinaz (ech 42 ve nag 70) ve bir B-1,3-glukanaz (gluc78) kodlayan pirinç transgenlerinin çoklu ekspresyonu, pirinçte Rhizoctonia solani ve Magnaportshe grisea'ya karşı artmış rezistan ile sonuçlanmıştır [27].…”

Isolasi dan Seleksi Jamur Endofit Asal Tanaman Kakao Sebagai Agens Hayati Phytophthora palmivora Butl.

“…Tarus, Lang'at-Thoruwa, Wanyonyi, & Chhabra (2003) melaporkan bahwa metabolit sekunder dari T. harzianum dan T. longibrachiatum, yaitu 2-phenylethanol, tyrosol, 6-n-Pentyl-a-pyrone, sorbicillin, dan ergosterol digunakan untuk mengendalikan A. mellea pada teh. Selain itu, Vinale et al (2014) …”

Evaluasi Jamur Antagonis dalam Menghambat Pertumbuhan Rigidoporus microporus Penyebab Penyakit Jamur Akar Putih pada Tanaman Karet

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