Pyrenophora tritici-repentis, Causal Agent of Tan Spot: A Review of Intraspecific Genetic Diversity

Moreno, María Virginia; Stenglein, Sebastián Alberto; Perelló, A. E.

doi:10.5772/33516

Cited by 6 publications

(1 citation statement)

References 145 publications

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“…Wheat leaves are affected by this disease, which results in chlorotic patches and necrotic lesions. The result is a reduction in the photosynthetic surface of the plant, which eventually causes leaf mortality and a decline in leaf quality [ 52 , 53 ]. Small oval- to diamond-shaped spots that appear periodically on wheat and triticale leaves are the symptoms of the leaves [ 54 ].…”

Section: The Main Foliar Diseases Affecting Cerealsmentioning

confidence: 99%

Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review

Dehbi,

Achemrk,

Ezzouggari

et al. 2023

Plants

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Cereal production plays a major role in both animal and human diets throughout the world. However, cereal crops are vulnerable to attacks by fungal pathogens on the foliage, disrupting their biological cycle and photosynthesis, which can reduce yields by 15–20% or even 60%. Consumers are concerned about the excessive use of synthetic pesticides given their harmful effects on human health and the environment. As a result, the search for alternative solutions to protect crops has attracted the interest of scientists around the world. Among these solutions, biological control using beneficial microorganisms has taken on considerable importance, and several biological control agents (BCAs) have been studied, including species belonging to the genera Bacillus, Pseudomonas, Streptomyces, Trichoderma, Cladosporium, and Epicoccum, most of which include plants of growth-promoting rhizobacteria (PGPRs). Bacillus has proved to be a broad-spectrum agent against these leaf cereal diseases. Interaction between plant and beneficial agents occurs as direct mycoparasitism or hyperparasitism by a mixed pathway via the secretion of lytic enzymes, growth enzymes, and antibiotics, or by an indirect interaction involving competition for nutrients or space and the induction of host resistance (systemic acquired resistance (SAR) or induced systemic resistance (ISR) pathway). We mainly demonstrate the role of BCAs in the defense against fungal diseases of cereal leaves. To enhance a solution-based crop protection approach, it is also important to understand the mechanism of action of BCAs/molecules/plants. Research in the field of preventing cereal diseases is still ongoing.

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Section: The Main Foliar Diseases Affecting Cerealsmentioning

confidence: 99%