Trichoderma species mediated differential tolerance against biotic stress of phytopathogens in Cicer arietinum L.

Abstract

Trichoderma spp. have been reported to aid in imparting biotic as well as abiotic tolerance to plants. However, there are only few reports unfolding the differential ability of separate species of Trichoderma genera generally exploited for their biocontrol potential in this framework. A study was undertaken to evaluate the biocontrol potential of different Trichoderma species namely T. harzianum, T. asperellum, T. koningiopsis, T. longibrachiatum, and T. aureoviride as identified in the group of indigenous isolates from the agricultural soils of Eastern Uttar Pradesh, India. Their biocontrol potential against three major soilborne phytopathogens, i.e., Sclerotium rolfsii, Sclerotinia sclerotiorum, and Colletotrichum capsici was confirmed by dual culture plate technique. Efficient mycoparasitic ability was further assessed in all the isolates in relation to chitinase, β-1,3 glucanase, pectinase, lipase, amylase, and cellulase production while equally consistent results were obtained for their probable phosphate solubilization and indole acetic acid (IAA) production abilities. The selected isolates were further subjected to test their ability to promote plant growth, to reduce disease incidence and to tolerate biotic stress in terms of lignification pattern against S. rolfsii in chickpea plants. Among the identified Trichoderma species, excellent results were observed for T. harzianum and T. koningiopsis indicating better biocontrol potential of these species in the group and thus exhibiting perspective for their commercial exploitation.

Effect of Trichoderma Fortified Compost on Disease Suppression, Growth and Yield of Chickpea

“…Additionally, the bio-control activities of T. harzianum against F. oxysporum f. sp. ciceri, R. solani modulate the induced plant resistance and enhance the plant growth (Sivan, 1989, Malik et al, 2005, Saxena et al, 2015. These results support the present findings of controlling soil-borne diseases as well as increasing growth promoting parameters and seed yield of chick pea by Trichoderma fortified composting.…”

Multiple criteria-based screening of Trichoderma isolates for biological control of Botrytis cinerea on tomato

“…Of the two fungal species, T. harzianum has been well studied as biocontrol agent (BCA) for control of B. cinerea as well as many other plant pathogens (Harman et al, 2004;Verma et al, 2007;Vos et al, 2015), whereas T. koningiopsis has been rarely studied as BCA for plant diseases so far. This fungus has been recorded in many countries, including Brazil (Lopes et al, 2012;De Souza et al, 2016), China (Sun et al, 2012), Columiba (Moreno et al, 2009;Smith et al, 2013), France (Jaklitsch and Voglmayr, 2015), India (Saxena et al, 2015), Mexico (Mendoza et al, 2011) and Poland (Błaszczyk et al, 2011), implying that it might be a cosmopolitan soilborne fungus. Previous studies indicated that selected isolates of T. koningiopsis are effective biocontrol agents (BCAs) in suppression of plant pathogens, including Fusarium oxysporum f.sp.…”

The integrated effect between phosphorus fertilizing levels and biological control on damping - off, root rot diseases and its reflection on an improving growth and fresh pods yield of priming and non-priming pea seeds

“…These treatments also significantly increased early and total fresh pods yield. Similarly, Saxena et al (2015) reported enhancement in root and shoot lengths along with dry weight of plants with significant increase in the number of leaf in the plants treated with the Trichodemra isolate BHUF4.…”