ALTERNARIA SP. scription of Alternaria species (Simmons, 2007) were re-covered from the diseased leaves using tissue separation methods (Zheng et al., 2015). Evaluation of Alternaria alternata Isolates for Metabolite Production Isolated from Different Sites of Varanasi, India. 5470). Colony morphology on complete PDA (D). Unlike wild-type A. brassicicola, however, the mutants failed to germinate and their hyphal growth was arrested in the presence of 200 μM brassinin. Ten isolates of A. alternata causing leaf blight disease of onion were collected from ten different conventional onion growing areas of Tamil Nadu and their pathogenicity was established.The species was identified by ICAR as Alternaria alternata (ITCC-Indian Type Culture Collection No. After 5–7 days in culture, colonies of A. tenuissima reach a diameter of 5 cm on PCA or V-8 agar (vegetable juice agar). endoPG, OPA1-3, OPA2-1 and two microsatellite flanking regions for phylogenetic analysis of citrus brown spot worldwide. u14193715 Fotosearch Stock Photography and Stock Footage helps you find the perfect photo or footage, fast! appear to have radiated Morphological variation of the conidia of Alternaria panax isolated from Panax schinseng and its pathogenicity were studied. Growth and morphology. The nodal region bears much branched rhizoid grows downward, inside the substratum for anchorage and absorption of food. Alternaria. Figure 1: Colony morphology of different Alternaria alternata isolates on PDA plates. Scale bars b-e and g 20 μm; f 50 μm Alternaria infectoria and Stemphylium herbarum of pyrethrum 97 Fig. Phoma glomerata-Same colony as above at 14 days incubation at 30 o C (Lighting differs from the photo above - difficult to control while trying to capture the true hue) Microscopic Morphology: Phoma glomerata produces sub-hyaline to hyaline (dark pigmented/brown), septate hyphae. The well diffusion method was used to assess the antifungal potential of the biosynthesized AgNPs against four pathogenic strains (Fusarium oxysporum, Fusarium moniliforme, Fusarium tricinctum, and Alternaria sp.). Thallus is white cottony, much branched mycelium. Mycelium is differen­tiated into nodes and internodes. Alternaria radicina and A. carotiincultae were considerably more similar to each other than to A. petroselini, but could be differentiated on the basis of growth rate, spore morphology, colony morphology, and, to a limited extent, RAPD analysis. In aging or axenic growth, excessive cellular swelling was recognized characteristically in the fungus. Media Colony diameter (mm) Sporulation . Open Access Journal of Agricultural Research Meena M, et al. Rhizopus stolonifer is also known as black bread mold. Classification: Ascomycete Morphology: Cell: Colony: Malt agar: Brownish Grey to black with white edges, producing a “suede-like” coating of spore stalks. They were similar to the wild type in spore germination, colony morphology, and mycelial growth in nutrient-rich media, both with and without stress-inducing chemicals. The colony morphology of A. vanuatuensis was similar to that of A. porri. 3 Stemphylium herbarum; a colony morphology and pigmentation on OA; b-g conidia; h short and long conidiophores i perithecia on SNA; j-l asci containing eight ascospores;. Conidia and conidiophores found on PDA (C) (Bar=15 μm). In this study we observed the pale brown to olive brown branched conidiophores with 25-60 um long and 3-3.5 um thick, that was the same with other results, the toxonomy of Alternaria alternata in our studying is based on the morphology and development of conidia and conidiophores and colony morphology. Pathogenic forms of . Alternaria spp., including A. alternata, exhibit considerable mor-phological plasticity that is dependent upon cultural conditions of substrate, temperature, light, and humidity (17,29). morphology, fungicidal sensitivity and molecular profile Sarbjeet Kaur, Gurpreet Singh, S. S. Banga Department of Plant Breeding, Genetics and Biotechnology, Punjab Agricultural University Ludhiana 141 004, India Email: Abstract Alternaria black spot (Alternaria brassicae) is an economically devastating disease of rapeseed-mustard in India. A. vanuatuensis produced diffusible pigments on PDA and V8 juice agar, but not on MEA. No obvious changes of the colony morphology and diameter of sod deletion mutant were observed (Figures 5A,E), while the colony diameter of Δsod and its complementation strain (Δsod-C) were 6.04 ± 0.14 and 6.11 ± 0.27 cm, respectively. Types of conidia found on PCA (A). The optimum pH levels of Alternaria solani grow in vitro were 6-7 and the optimum growing temperatures of the isolates recovery in this study was 25 and 30°C. 2013). Malt Extract Agar - variation in colony morphology - Poster Subject: Malt Extract Agar - variation in colony morphology - Poster Keywords: Malt Extract Agar - variation in colony morphology - Poster, mycology, fungi, MEA, colony color, aspergillus, cladosporium, dematiacieous, penicillium, Hardy Diagnostics Created Date: 5/17/2006 5:48:04 PM 2b and 2d). Alternaria species have been generally identified and classified based on cultural and conidial morphology [5, 6, 7]. Alternaria: An Identification Manual fills a very large void in the scientific literature and it is quite certain that the volume will become the standard reference for those needing to have critical access to Alternaria literature and taxonomic information. The identification of the cultured pathogen as Alternaria alternata was also carried out based on colony morphology and conidial size (Ellis, 1971; Shakir et al., 1997). using metabolic profiling, morphology of the colony on standardized media and pattern of the conidial branching [31-41]. I. Pure cultures of the isolates were obtained by single spore purification and were stored on potato dextrose agar (PDA) slants. When grown on media having a high nutritional con-tent, A. radicina produced a diffusible yellow pig- Alternaria is a dematiaceous (phaeoid) fungus commonly isolated from plants, soil, food, and... Stock Photography - Lushpix. Genus/species: Alternaria alternate (Torula alternata, Alternaria tenuis, Macrosporium erumpens, Alternaria erumpens, Macrosporium meliloti, Macrosporium polytrichi, Macrosporium seguierii). Colony and conidial morphology are the primary characters to identify species within this genus (Ellis 1971, 1976; Simmons 1992). Screening of Antifungal Potential of Silver Nanoparticles . Also, A. infectoria was originally identified based on colony morphology including the three-dimensional structure of the conidia, however, it was found that these characteristics can be similar with other Alternaria species which render this characteristic rather useless in Alternaria taxonomy (Simmons and Roberts, 1993).