scholarly journals Mycoflora associated with bipolaris leaf blight of different wheat varieties in Bangladesh

2019 ◽  
Vol 28 (1) ◽  
pp. 21-35
Author(s):  
Mst Selina Momtaz ◽  
Shamim Shamsi ◽  
Tapan Kumar Dey

Thirty five fungal species, representing 20 genera were found to be associated with Bipolaris leaf blight infected leaves of 21 wheat varieties, collected from eight districts (Dhaka, Gazipur, Dinajpur, Joypurhat, Pabna, Sirajgonj, Kushtia and Chuadanga) of Bangladesh. Fungi were isolated following tissue planting method. The isolated fungi were Alternaria alternata, A. triticina, Arthirinium sp., Aspergillus flavus, A. fumigatus, A. niger, A. terreus, Aspergillus sp., Bipolaris cynodontis, B. oryzae, B. sorokiniana, B. tetramera, B. victoriae, Bispora antenata, Chaetomium globosum, Chaetophoma sp., Cladosporium cladosporioides, Coniothyrium sp., Curvularia affinis, C. lunata, C. pallescens, Drechslera dematioidea, D. hawaiiensis, Epicoccum purpurascens, Eurotium sp., Fusarium moniliforme, F. nivale, F. semitectum, Nigrospora oryzae, N. sacchari, Penicillium digitatum, Pestalotiopsis guepinii, Rhizopus stolonifer, Syncephalastrum racemosum and Trichoderma viride. Bispora antenata is new record for Bangladesh. Dhaka Univ. J. Biol. Sci. 28(1): 21-35, 2019 (January)

2020 ◽  
Vol 29 (1) ◽  
pp. 75-86
Author(s):  
Tania Sultana ◽  
MA Bashar ◽  
Shamim Shamsi

Twenty five fungal species, representing 13 genera were found to be associated with seeds of 20 varieties of rice (BRRI dhan 56 to BRRI dhan 75). Fungi were isolated following "Tissue planting" method and "Blotter method". The isolated fungi were Alternaria alternata, A. tenuissima, Aspergillus flavus, A. fumigatus, A. niger, A. ochraceus, A. terreus, Bipolaris multiformis, B. oryzae, B. sorokiniana, Chaetomium globosum, Curvularia lunata, Fusarium equiseti, F. fugikuroi, F. oxysporum, F. proliferatum, Microdochium fisheri, Nigrospora oryzae, Penicillium sp., Pestalotiopsis oxyanthi, Phanerochaete chrysosporium, Rhizopus stolonifer, Sarocladium oryzae, Syncephalastrum racemosum and Trichoderma viride. Dhaka Univ. J. Biol. Sci. 29(1): 75-86, 2020 (January)


2014 ◽  
Vol 37 (2) ◽  
pp. 211-217 ◽  
Author(s):  
Fatema Yeasmin ◽  
Shamim Shamsi

Two types of symptoms, blight and anthracnose, were recorded on two species of Gerbera viz. Gerbera aurantiaca L. and Gerbera viridifolia L. The most common fungal species isolated from Gerbera spp. were Alternaria citrii, A. tennuisssima, Aspergillus flavus, A. fumigatus, A. niger, A. terreus, Bipolaris hawaiiensis, Chaetomella raphigera, Cladosporium cladosporoides, Colletotrichum capsici, C. coffeanum, C. dematium, C. gleosporioides, C. lindemuthianum, C. musae, C. orbiculare, Colletorichum sp.1, Colletotrichum sp.2, Colletotrichum sp.3, Colletotrichum sp.4, Curvularia clavata, C. lunata, Fusarium nivale, F. semitectum, Phomopsis sp., Penicillium sp., Pestalotia sp., Rhizopus stolonifer, Trichoderma viride, one cleistothecial ascomycetes and one sterile fungus. The frequency percentage of association of Colletotrichum spp. with Gerbera spp. was higher than any other fungi. Bipolaris hawaiiensis is a new record for Bangladesh. Among the isolated fungi Alternaria citrii, A. tennuissima, Colletotrichum capcisi, C. dematium, C. coffeanum and Curvularia clavata were found to be pathogenic to Gerbera plant. DOI: http://dx.doi.org/10.3329/jbas.v37i2.17562 Journal of Bangladesh Academy of Sciences, Vol. 37, No. 2, 211-217, 2013


2016 ◽  
Vol 40 (1) ◽  
pp. 87-90
Author(s):  
Shamim Shamsi ◽  
Mst Selina Momtaz

Pestalotiopsis guepinii (Desm.) Stay an anamorphic fungus belonging to the class Celomycetes was isolated from Bipolaris leaf blight (BpLB) infected wheat leaf of two wheat varieties namely, Balaka and Saurab during the period of February to March, 2011. Association of Pestalotiopsis guepinii with wheat is a new record.Journal of Bangladesh Academy of Sciences, Vol. 40, No. 1, 87-90, 2016


2020 ◽  
Vol 27 (1) ◽  
pp. 129-136
Author(s):  
Zuhra Yasmin ◽  
Shamim Shamsi

Fifteen fungal species representing 12 genera were found to be associated with leaf spot and anthracnose diseases of Rauvolfia serpentina (L.) Benth. ex Kurz. which were collected from different habitats of Bangladesh. Fungi were isolated following ‘tissue planting’ and ‘blotter’ method. The isolated fungi were Alternaria alternata (Fr.) Keissler, Aspergillus flavus Link ex Fr., A. niger van Tieghm, Colletotrichum gloeosporioides (Penz.) Sacc., Curvularia lunata (Wakker) Boedijn, Fusarium sp.1. Fusarium sp. 2, Macrophoma sp., Nigrospora sphaerica (Sacc.) Mason, Penicillium digitatum Saccardo, Penicillium italicum Whemer, Pestalotiopsis guepinii (Desm.) Stay, Pseudocercospora libenbergii (Syd.) Deighton, Rhizopus stolonifera Vuillemin. Toney, Trichoderma viride Pers. During the present investigation, Pseudocercospora libenbergii is a new record for Bangladesh. Bangladesh J. Plant Taxon. 27(1): 129-136, 2020 (June)


2018 ◽  
Vol 27 (1) ◽  
pp. 93-100
Author(s):  
Farhana Islam ◽  
Shamim Shamsi ◽  
Md Abul Bashar

A total of ten fungal species were isolated from the anthracnose symptoms of three varieties of Mangifera indica L. viz., Himsagar, Langra and Amrapali. The isolated fungi were Alternaria alternata (Fr.) Keissler, Aspergillus flavus Link, A. fumigatus Fresenius, A. niger van Tiegh., Colletotrichum gloeosporioides (Penz.) Sacc., Fusarium semitectum Berk. & Rav., Papulaspora sp. Preuss., Penicillium sp. Link., Pestalotiopsis guepinii (Desm.) Stey. and Rhizopus stolonifer (Ehrenb.) Vull. Colletotrichum gloeosporioides showed the highest per cent (26.82) frequency in Himsagar whereas R. stolonifer showed the lowest (2.22). Pestalotiopsis guepinii showed the highest per cent (46.83) frequency in Langra whereas R. stolonifer showed the lowest (1.17). Colletotrichum gloeosporioides showed the highest per cent (38.67) frequency in Amrapali whereas Papulaspora sp. showed the lowest (4.00). Among the isolated fungi C. gloeosporioides, F. semitectum and P. guepinii were found to be pathogenic to three mango varieties. Association of Fusarium semitectum, Papulaspora sp. and Pestalotiopsis guepinii with mango is new record in Bangladesh. Dhaka Univ. J. Biol. Sci. 27(1): 93-100, 2018 (January)


2020 ◽  
Vol 29 (2) ◽  
pp. 237-244
Author(s):  
Amina Khatun ◽  
Shamim Shamsi ◽  
MA Bashar

Seed samples with highest (CB10), lowest (CB8), moderate fungal frequency (CB3) and randomly selected seeds from all varieties (CB1-14) were used. A total of 14 species of fungi, namely Aspergillus flavus Link, A. fumigatus Fresenius, A. niger Van Tiegh, Curvularia lunata (Wakker) Boedijn, Colletotrichum gloeosporioides Penz & Sacc, Fusarium nivale (Fr.) Sorauer, F. oxysporum Schlechtendal, F. fujikuroi Nirenberg, Penicillium aculeatum Raper & Fennell, Penicillium citrinum Thom, Rhizoctonia solani Khun., Rhizopus stolonifer (Ehrenb.) Vuill., Syncephalastrum racemosum Cohn and Trichoderma viride Pers. were found to be associated with seed parts of different varieties of cotton. The maximum ten species of fungi were isolated from seed coat. The most prevalent fungus was Rhizopus stolonifer which was found in all the parts of all the varieties of cotton seeds examined. Out of the 14 isolated fungi, Aspergillus flavus, A. fumigatus, A. niger, C. lunata, C. gloeosporioides, F. nivale, F. oxysporum, F. fujikuroi, Penicillium aculeatum, R. solani, R. stolonifer, S. racemosum and T. viride were found to be external and Aspergillus flavus, A. fumigatus, A. niger, C. lunata, F. nivale, Penicillium citrinum and R. stolonifer were internal seed borne fungi. Aspergillus flavus, A. fumigatus, A. niger, C. lunata, F. nivale and R. stolonifer were isolated as both external and internal seed borne fungi. Dhaka Univ. J. Biol. Sci. 29(2): 237-244, 2020 (July)


2020 ◽  
Vol 4 (1) ◽  
pp. 58-69
Author(s):  
Babatide Olufemi Oladapo ◽  
Esther Aanuoluwa Ekundayo ◽  
Mariam Olukemi Mokoolu ◽  
Fatuyi Olanipekun Ekundayo

Abstract Insecticides are used widely to control a variety of pests and often residues of these insecticides are left in soil which may have impact on the phosphate solubilization potentials of rhizosphere fungi. Rhizosphere soils were collected from carefully uprooted cowpea seedlings with hand trowel on 50, 70 and 90th days of germination containing the lambda-cyhalothrin and dimethoate insecticides. Fungi associated with the above samples were identified by standard microbiological techniques. Screening for phosphate solubilization potential of the isolates was done by spot inoculation on Pikovskaya agar by measuring the clear zones around the colonies supplemented with tricalcium phosphates [Ca3(PO4)2]. The phosphatase produced by the fungal species was optimized using parameters such as incubation time, pH, temperature, carbon source and nitrogen source in submerged fermentation. The isolated rhizosphere fungi were identified as Rhizopus stolonifer, Aspergillus niger, Aspergillus fumigatus, Aspergillus terreus, Trichoderma viride, Arthroderma fulvum and Fusarium oxysporum. Among the isolates, Trichoderma viride showed the best ability to solubilize phosphate with solubilization index of 2.82 with dimethoate of 12.5ml/L of water. The optimization study for the enzyme production showed that the best incubation time for phosphatase production was 72 hours by Trichoderma viride. It was observed that the optimum pH for production of phosphatase by Trichoderma viride was 6.5. This study suggests that all the isolated fungi especially Trichoderma viride can adapt to these insecticidal treatments, which make them useful as biofertilizers to increase uptake of phosphorous in plants.


2022 ◽  
Vol 12 ◽  
Author(s):  
Andrea Ficke ◽  
Belachew Asalf ◽  
Hans Ragnar Norli

Plants and fungi emit volatile organic compounds (VOCs) that are either constitutively produced or are produced in response to changes in their physico-chemical status. We hypothesized that these chemical signals could be utilized as diagnostic tools for plant diseases. VOCs from several common wheat pathogens in pure culture (Fusarium graminearum, Fusarium culmorum, Fusarium avenaceum, Fusarium poae, and Parastagonospora nodorum) were collected and compared among isolates of the same fungus, between pathogens from different species, and between pathogens causing different disease groups [Fusarium head blight (FHB) and Septoria nodorum blotch (SNB)]. In addition, we inoculated two wheat varieties with either F. graminearum or P. nodorum, while one variety was also inoculated with Blumeria graminis f.sp. tritici (powdery mildew, PM). VOCs were collected 7, 14, and 21 days after inoculation. Each fungal species in pure culture emitted a different VOC blend, and each isolate could be classified into its respective disease group based on VOCs with an accuracy of 71.4 and 84.2% for FHB and SNB, respectively. When all collection times were combined, the classification of the tested diseases was correct in 84 and 86% of all cases evaluated. Germacrene D and sativene, which were associated with FHB infection, and mellein and heptadecanone, which were associated with SNB infection, were consistently emitted by both wheat varieties. Wheat plants infected with PM emitted significant amounts of 1-octen-3-ol and 3,5,5-trimethyl-2-hexene. Our study suggests that VOC blends could be used to classify wheat diseases. This is the first step toward a real-time disease detection in the field based on chemical signatures of wheat diseases.


2013 ◽  
Vol 22 (1) ◽  
pp. 39-46
Author(s):  
Shamim Shamsi ◽  
Najmun Naher

A total of nine fungi were isolated from two ornamental angiosperms, namely Hemerocallis fulva L. and Pancratium verecundum Ant. belong to Liliaceae. Three species of fungi were found to be associated with the leaf of Hemerocallis fulva. The fungi were Colletotrichum capsici, (Syd.) Bull. & Bisby, Colletotrichum dematium (Pers. Ex Fr.) and Glomerella montana (Sacc.)v Arx & E. Muller. Six species of fungi, namely Alternaria alternata (Fries) Keissler, Colletotrichum orbiculare (Berk & Mont.) Arex., Curvularia clavata Jain, Fusarium solani (Mort.) Sacc., Lasiodiplodia theobromae (Pat.) Griffon and Maubol and Macrophomina phaseolina (Tassi) Goid were found to be associated with P. verecundum. Among the fungal species Glomerella montana is new record for Bangladesh. Dhaka Univ. J. Biol. Sci. 22(1): 39-46, 2013 (January)


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