Anatomical changes induced by isolates of Trichoderma spp. in soybean plants

Area of Science:

• Plant Science
• Agricultural Microbiology
• Mycology

Background:

• Soybean production is globally significant, driving demand for yield-enhancing methods.
• Trichoderma fungi are recognized for promoting plant growth and biological control.
• Limited research exists on the specific anatomical changes induced by Trichoderma colonization in soybean.

Purpose of the Study:

• To investigate the anatomical modifications in soybean cultivars BRSGO Caiaponia and NA 5909 RG following inoculation with Trichoderma harzianum and Trichoderma asperellum.
• To correlate observed anatomical changes with potential benefits for plant defense and stress tolerance.

Main Methods:

• Greenhouse experiment involving soybean cultivation.
• Inoculation of soybean plants with Trichoderma spp.
• Analysis of plant growth parameters, defense enzyme activity, and detailed anatomical examination of leaves and roots.

Main Results:

• Trichoderma inoculation led to significant anatomical alterations in soybean.
• Observed changes include increased stomatal index (abaxial leaf surface), root cortex thickness, adaxial epidermis thickness, vascular cylinder diameter, mesophyll thickness, and spongy parenchyma thickness.
• These modifications suggest enhanced plant defense mechanisms.

Conclusions:

• Anatomical studies are crucial for understanding the effects of biological control agents like Trichoderma.
• Induced anatomical changes in soybean may contribute to improved pathogen resistance and resilience to adverse conditions.
• Trichoderma spp. show potential for enhancing soybean productivity through beneficial anatomical modifications.