Peroxisomes are ubiquitous organelles of eukaryotic cells that accomplish a variety of biochemical functions, including “-oxidation of fatty acids, glyoxylate cycle, etc. Many reports have been accumulating that indicate peroxisome related metabolic functions are essential for pathogenic development of plant pathogenic fungi. They include peroxisome biogenesis proteins, peroxins and preferential destruction of peroxisomes, pexophagy. Gene disrupted mutants of anthracnose disease pathogen Colletotrichum orbiculare or rice blast pathogen Magnaporthe oryzae defective in peroxins or pexophagy showed deficiency in pathogenesis. Woronin body, a peroxisome related cellular organelle that is related to endurance of fungal cells against environmental damage has essential roles in pathogenesis of M. oryzae. Also, peroxisome related metabolisms such as β-oxidation and glyoxylate cycle are essential for pathogenesis in several plant pathogenic fungi. In addition, secondary metabolisms including polyketide melanin biosynthesis of C. orbiculare and M. oryzae, and host selective toxins produced by necrotrophic pathogen Alternaria alternata have pivotal roles in fungal pathogenesis. Every such factor was listed and their functions for pathogenesis were demonstrated (Table 18.1 and Fig. 18.1).
CITATION STYLE
Kubo, Y. (2014). Function of peroxisomes in plant-pathogen interactions. Subcellular Biochemistry, 69, 329–345. https://doi.org/10.1007/978-94-007-6889-5_18
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