In this paper, thermal (8-13 µm) and hyperspectral imaging in visible and near infrared (VNIR) and short wavelength infrared (SWIR) ranges were used to elaborate a method of early detection of biotic stresses caused by fungal species belonging to the genus Alternaria that were host (Alternaria alternata, Alternaria brassicae, and Alternaria brassicicola) and non-host (Alternaria dauci) pathogen...

Penicillium chrysogenum QEN-24S, an endophytic fungus isolated from an unidentified marine red algal species of the genus Laurencia, displayed inhibitory activity against the growth of pathogen Alternaria brassicae in dual culture test. Chemical investigation of this fungal strain resulted in the isolation of four new (1-3 and 5) and one known (4) secondary metabolites. Their structures were id...

Alternaria brassicae and A. brassicicola are the major leaf pathogens on Brassicaceae throughout the world. Here we report a spatio-temporal survey of naturally occurring isolates of these fungi in the Brazilian neotropics. Both fungi were able to induce similar symptoms in common hosts. The fungus A. brassicicola was more frequently isolated (187/322), being prevalent on the Brassica oleracea ...

UNLABELLED Alternaria is a ubiquitous fungal genus that includes saprobic, endophytic and pathogenic species associated with a wide variety of substrates. In recent years, DNA-based studies revealed multiple non-monophyletic genera within the Alternaria complex, and Alternaria species clades that do not always correlate to species-groups based on morphological characteristics. The Alternaria co...

Alternaria brassicae is a widespread pathogen causing black leaf spot in the common cabbage (Brassica oleracea Linn.). Ample spectrum of effective chemical fungicides is in use against this pathogen. The agricultural areas of the Nilgiris are fragmented shola forests of this biodiversity hot spot. The indiscriminate usage of chemical fungicides may cause physiological damage, including the endo...

Phytochemical screening and Antifungal activities of Parthenium hysterophrous L (Asteraceae) was carried out in laboratory. Distilled water and methanol extracts of the leaves of plant was prepared. Five phytopathogenic fungi: Alternaria brassicae, Botrytis cinerea, Fusarium oxysporum, Phytophthora capsici and Sclerotium rolfsii were tested at different concentrations (50 mg/ml, 100 mg/ml, 150 ...

The most pervasive and harmful illness is cruciferous black spot disease. This disease starts to show symptoms as soon the seed emerges from soil continues all through growth season. In regions designated for seeds, cabbages left storage, areas planted human consumption, seen. Alternaria mostly affects plants’ organs responsible generating it severely damages pods seeds. leaves bulbs of crucife...