Pathogenesis of Alternaria species: physiological, biochemical and molecular characterization.

Abstract

This chapter focuses on the host range, survival and epidemiology and pathogenic variation, melanin production, infection process, toxin biosynthesis and mechanism of host-specific toxins of Alternaria spp. The effective screening techniques in the breeding for resistance to Alternaria spp., mechanisms of resistance and the inheritance and incorporation of resistance are discussed and the host defence against Alternaria blight, biological and integrated Alternaria blight management in rape and Indian mustard are highlighted.

Pathogenic Variability within Indian Alternaria brassicae Isolates Using Seed, Cotyledon and Leaf of Brassica Species

“…; Meena et al. ), which needs to be further explored. Virulent isolates including BAB‐09, BAB‐19 and BAB‐39 were identified in the present study for further use in the detection of resistance in oilseed Brassica.…”

“…Results indicated varying response in pathogenic reaction on different Brassica species demonstrating the existence of pathogen variation among A. brassicae population prevalent in India. Variation among isolates of A. brassicae could be the result of production of a host-specific toxins which were released during spore germination on the leaves (Pedras et al 2009;Meena et al 2015), which needs to be further explored. Virulent isolates including BAB-09, BAB-19 and BAB-39 were identified in the present study for further use in the detection of resistance in oilseed Brassica.…”