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Showing 2 results for Mating Type

Munes Bakhshi, Mehdi Arzanlou, Asadollah Babay-Ahari,
Volume 2, Issue 1 (3-2013)

Sexual reproduction of fungi is governed by the mating type (MAT) locus. Because two alternate forms (alleles) are completely dissimilar sequences and encoding different transcription factors, this locus is structurally unusual, yet they occupy the same chromosomal position. Genomic analyses facilitate the definition of MAT locus sequences in many species, so the knowledge of MAT locus structure and evolution has been significantly advanced in recent years. This important genomic feature has been studied most extensively in the largest phylum of the fungi, Ascomycota, which is the largest group of the plant pathogenic fungi. In this article we discuss the different aspects of mating type genes and their structure and organization in Ascomycota. Knowledge on the mating type genes may provide a great assistance to understanding the potential of phytopathogenic fungi for sexual cycle and consequently on genetic diversity in fungal populations. The proper data on sexual reproduction and genetic diversity of phytopathogenic fungi might be useful in different aspects of plant disease management.
Keivan Karimi, Mahdi Arzanlou, Fariba Mirabi,
Volume 4, Issue 1 (3-2015)

Karimi K., Arzanlou M. & Mirabi F. 2015. Barley scald disease. Plant Pathology Science 4(1):1-12. 
Barley is one of the world`s most widely consumed cereal. Rhynchosporium commune, the causal agent of barley leaf scald, is one of the most deleterious pathogens of barley which can cause up to 40% yield loss, under favorable conditions. Primary infection takes place by spores produced on infected plant debris. The secondary infection can be repeated by spore dispersal by rain and wind. Although the teleomorphic stage is unknown, high levels of genetic diversity have been observed within and between populations of this pathogen, attributed to some mechanisms such as gene flow, parasexual cycle and asexual recombination. The management of this disease is mainly achieved through cultural and chemical measures of control and use of resistant cultivars. In this paper, different aspects of pathogen symptoms, taxonomy and biology of pathogen, and management of disease are discussed.

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