Global Plant Protection News

Saturday, 26 November 2022 14:55:42

PestNet

Grahame Jackson posted a new submission ‘Trichoderma: a multipurpose, plant-beneficial microorganism for eco-sustainable agriculture’

Submission

Trichoderma: a multipurpose, plant-beneficial microorganism for eco-sustainable agriculture

Nature
https://www.nature.com/articles/s41579-022-00819-5

• Sheridan L. Woo, 
• Rosa Hermosa, 
• Matteo Lorito & 
• Enrique Monte 

Nature Reviews Microbiology (2022)

Abstract

Trichoderma is a cosmopolitan and opportunistic ascomycete fungal genus including species that are of interest to agriculture as direct biological control agents of phytopathogens. Trichoderma utilizes direct antagonism and competition, particularly in the rhizosphere, where it modulates the composition of and interactions with other microorganisms. In its colonization of plants, on the roots or as an endophyte, Trichoderma has evolved the capacity to communicate with the plant and produce numerous multifaceted benefits to its host. The intricacy of this plant–microorganism association has stimulated a marked interest in research on Trichoderma, ranging from its capacity as a plant growth promoter to its ability to prime local and systemic defence responses against biotic and abiotic stresses and to activate transcriptional memory affecting plant responses to future stresses. This Review discusses the ecophysiology and diversity of Trichoderma and the complexity of its relationships in the agroecosystem, highlighting its potential as a direct and indirect biological control agent, biostimulant and biofertilizer, which are useful multipurpose properties for agricultural applications. We also highlight how the present legislative framework might accommodate the demonstrated evidence of Trichoderma proficiency as a plant-beneficial microorganism contributing towards eco-sustainable agriculture.

Read Full Post »

Monday, 20 June 2022 07:56:27

Grahame Jackson posted a new submission ‘Trichoderma atroviride seed dressing influenced the fungal community and pathogenic fungi in the wheat rhizosphere’

PestNet

Trichoderma atroviride seed dressing influenced the fungal community and pathogenic fungi in the wheat rhizosphere

Nature

• Lina Sui, et al. , Scientific Reports volume 12, Article number: 9677 (2022) Cite this article

Abstract

Fusarium crown rot and wheat sharp eyespot are major soil-borne diseases of wheat, causing serious losses to wheat yield in China. We applied high-throughput sequencing combined with qPCR to determine the effect of winter wheat seed dressing, with either Trichoderma atroviride HB20111 spore suspension or a chemical fungicide consisting of 6% tebuconazole, on the fungal community composition and absolute content of pathogens Fusarium pseudograminearum and Rhizoctonia cerealis in the rhizosphere at 180 days after planting. The results showed that the Trichoderma and chemical fungicide significantly reduced the amount of F. pseudograminearum in the rhizosphere soil (p < 0.05), and also changed the composition and structure of the fungal community. In addition, field disease investigation and yield measurement showed that T. atroviride HB20111 treatment reduced the whiteheads with an average control effect of 60.1%, 14.9% higher than the chemical treatment; T. atroviride HB20111 increased yield by 7.7%, which was slightly more than the chemical treatment. Therefore, T. atroviride HB20111 was found to have the potential to replace chemical fungicides to control an extended range of soil-borne diseases of wheat and to improve wheat yield.

Read on: https://www.nature.com/articles/s41598-022-13669-1

Read Full Post »