Early Pathogenicity events in Plant Pathogenic Fungi: A Comprehensive Review

Author: Naiya Sharma and Ajay Kumar Gautam

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Abstract

The mechanism of pathogenesis in fungi involves use of mechanical forces (formation of appressoria and penetration of the host cuticle and cell wall), chemical weapons including enzymes (cutinases, pectinases, cellulases etc) toxins and growth regulators. Pathogen overcomes different host barriers either by quiescence, detoxification phytoanticipins, phytoalexins, ATP binding cassette (ABC) transporters, suppression of active oxygen species, toxins production and by prevention of senescence cytokinin. Plant pathogenic fungi exhibit a huge variability in their mode of infection, differentiation and function of infection structures and nutritional strategy. Successful penetration of living plant tissue by fungal pathogens is preceded by an exchange of signals between both organisms. Recent mutational approaches revealed the importance of cAMP-dependent signaling pathways for fungal development and virulence on their hosts. Plant pathogenic fungi have developed different lifestyles and mo

Keywords

Appresoria, Quiescence, Phytoalexins,Active oxygen species.

Conclusion

The mechanism of pathogenesis in fungi involves use of mechanical forces (formation of appressoria and penetration of the host cuticle and cell wall), chemical weapons including enzymes (cutinases, pectinases, cellulases etc) toxins and growth regulators. Pathogen overcomes different host barriers either by quiescence, detoxification phytoanticipins, phytoalexins, ATP binding cassette (ABC) transporters, suppression of active oxygen species, toxins production and by prevention of senescence cytokinin. Plant pathogenic fungi exhibit a huge variability in their mode of infection, differentiation and function of infection structures and nutritional strategy. Successful penetration of living plant tissue by fungal pathogens is preceded by an exchange of signals between both organisms. Recent mutational approaches revealed the importance of cAMP-dependent signaling pathways for fungal development and virulence on their hosts. Plant pathogenic fungi have developed different lifestyles and mo

References

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How to cite this article

Sharma, N. and Gautam, A.K. (2019). Early Pathogenicity events in Plant Pathogenic Fungi: A Comprehensive Review. Biological Forum – An International Journal, 11(1): 24-34.