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Development of Metarhizium anisopliae as a Mycoinsecticide: From Isolation to Field Performance
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Development of Metarhizium anisopliae as a Mycoinsecticide: From Isolation to Field Performance

Published on: July 30, 2017

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Characterisation and evaluation of Metarhizium anisopliae (Metsch.) Sorokin strains for their temperature tolerance

K N P Chandra Teja1,2, S J Rahman3

  • 1Department of Microbiology, Agri Biotech Foundation, Hyderabad, India.

Mycology
|August 21, 2018
PubMed

Insights

This study identified temperature-tolerant Metarhizium fungal isolates for biological pest control. Strains LaMa1 and MaAICRP showed excellent performance at 35°C, offering potential for agricultural applications.

Area of Science:

  • Agricultural Science
  • Mycology
  • Biological Control

Background:

  • Entomopathogenic fungi, including Beauveria, Metarhizium, and Lecanicillium, are vital for insect pest biological control.
  • Abiotic factors such as temperature, humidity, and UV radiation significantly limit the efficacy of these biocontrol agents.

Purpose of the Study:

  • To isolate and identify local Metarhizium fungal strains from Indian crop rhizospheres.
  • To evaluate the temperature tolerance of these Metarhizium isolates.

Main Methods:

  • Isolation of four Metarhizium strains from Telangana and Andhra Pradesh crop rhizospheres.
  • Assessment of radial growth, conidial yield, and germination rates at various incubation temperatures.
  • Identification of promising temperature-tolerant strains.

Main Results:

  • Two strains, LaMa1 and MaAICRP, demonstrated robust performance.
  • These selected strains exhibited favorable radial growth, high conidial yield, and rapid germination even at 35°C.
  • This indicates significant heat tolerance.

Conclusions:

  • The identified Metarhizium strains (LaMa1 and MaAICRP) possess high temperature tolerance.
  • These strains hold promise for enhanced biological control strategies in agriculture, particularly in warmer climates.
  • Further research should explore their field efficacy and integration into pest management programs.
Keywords:
Entomopathogenic fungiITS regionMetarhizium anisopliaeconidial germination rateconidial yieldradial growthtemperature tolerance

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