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  3. Characterization And Quantification Of Peptaibol Produced By Novel Trichoderma Spp: Harnessing Their Potential To Mitigate Moisture Stress Through Enhanced Biochemical And Physiological Responses In Black Pepper (piper Nigrum L.).
  1. Home
  3. Characterization And Quantification Of Peptaibol Produced By Novel Trichoderma Spp: Harnessing Their Potential To Mitigate Moisture Stress Through Enhanced Biochemical And Physiological Responses In Black Pepper (piper Nigrum L.).

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Characterization and quantification of peptaibol produced by novel Trichoderma spp: Harnessing their potential to

Vijayasanthi Kodakkal Valiyambath1,2, Titty Anna Thomas1, Priya George1

  • 1ICAR-Indian Institute of Spices Research, Marikunnu, Kozhikode, Kerala, 673012, India.

World Journal of Microbiology & Biotechnology
|October 2, 2024

View abstract on PubMed

Summary
This summary is machine-generated.
Keywords:
Trichoderma spp.DroughtPeptaibolPhenolsProlineSecondary metabolites

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Certain Trichoderma species enhance black pepper plant growth and drought tolerance by boosting secondary metabolite production. These biocontrol agents stimulate antioxidative mechanisms and accumulate protective compounds under moisture stress.

Area of Science:

  • Plant Pathology
  • Microbial Biotechnology
  • Agricultural Science

Background:

  • Trichoderma spp. are known for managing biotic plant stresses.
  • They can also mitigate abiotic stresses by enhancing plant defense mechanisms and secondary metabolite synthesis.

Purpose of the Study:

  • To optimize conditions for peptaibol production in novel Trichoderma spp.
  • To investigate the efficacy of selected Trichoderma isolates in improving black pepper growth and physio-biochemical responses under moisture stress.

Main Methods:

  • Screening of 51 Trichoderma isolates for tolerance to low moisture and high temperatures in vitro.
  • In vivo evaluation of promising isolates on black pepper plants under varying moisture levels (Field Capacity [FC]: 75%, 50%, 25%).
  • Quantification of secondary metabolites (proline, phenols, MDA, soluble proteins) and growth parameters.

Main Results:

  • Six Trichoderma isolates (T. asperellum, T. erinaceum, T. harzianum, T. lixii) demonstrated tolerance to drought and heat stress.
  • Inoculation with T. asperellum and T. harzianum significantly improved black pepper growth under moisture stress.
  • Trichoderma inoculation led to increased accumulation of proline, phenols, MDA, and soluble proteins in plants at lower moisture levels (50% and 25% FC).

Conclusions:

  • Trichoderma isolates, particularly T. harzianum and T. asperellum, enhance drought tolerance in black pepper.
  • Peptaibol production by Trichoderma may be crucial for their biocontrol efficacy.
  • These findings highlight the potential of specific Trichoderma strains for improving crop resilience to abiotic stresses.