Water relations of Alternaria alternata, Cladosporium cladosporioides, Cladosporium sphaerospermum, Curvularia lunata and Curvularia pallescens

1994 ◽  
Vol 98 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Ailsa D. Hocking ◽  
Beverly F. Miscamble ◽  
J.I. Pitt
Keyword(s):  
Water Relations ◽  
Alternaria Alternata ◽  
Cladosporium Cladosporioides ◽  
Curvularia Lunata ◽  
Cladosporium Sphaerospermum

scholarly journals HONGOS ENDÓFITOS EN 2 PLANTAS MEDICINALES DEL NORDESTE ARGENTINO. I: ANÁLISIS MORFOTAXONÓMICO DE SUS COMUNIDADES FOLIARES

2019 ◽  
Vol 25 ◽  
Author(s):  
Gustavo Giusiano ◽  
Marinella Rodolfi ◽  
Magdalena Mangiaterra ◽  
Eduardo Piontelli ◽  
Anna Maria Picco
Keyword(s):  
Fusarium Oxysporum ◽  
Alternaria Alternata ◽  
Aureobasidium Pullulans ◽  
Fusarium Proliferatum ◽  
Cladosporium Cladosporioides ◽  
Curvularia Lunata ◽  
Sordaria Fimicola ◽  
Myrothecium Roridum

Se evaluó la presencia de hongos endófitos en hojas de dos plantas medicinales, Acanthospermum australe y Pterocaulon alopecuroides, utilizadas entre otras cosas para tratar infecciones cutáneas. El muestreo se realizó en el entorno rural de dos ciudades del nordeste argentino. Los especimenes fueron recogidos por aborígenes de la zona conocedores de su distribución ambiental. Los hongos se aislaron mediante la técnica de Bisseger et al., 1994 y se identificaron empleando caracteristicas morfofisiológicas. Considerando las dos plantas, se encontraron 40 morfoespecies, donde los taxa más frecuentes en Acanthospermum australe fueron: Alternaria alternata, Aureobasidium pullulans, Fusarium oxysporum, F. solani, Myrothecium roridum, Phoma spp. y Sordaria fimícola, y en Pterocaulon alopecuroides fueron: Alternaria alternata, Aureobasidium pullulans, Cladosporium cladosporioides, Curvularia lunata, Fusarium proliferatum y Myrothecium roridum. Estos taxas considerados como generalistas (o de múltiples hospedadores), presentan según la literatura específica analizada, alta producción de metabolitos secundarios bioactivos con potenciales capacidades terapéuticas antimicrobianas.

Crossreactivity Between Curvularia lunata and Alternaria alternata

2006 ◽  
Vol 18 (06) ◽  
pp. 224-229
Author(s):  
Naveen Arora ◽  
Bhanu Singh ◽  
Ratna Gupta ◽  
Susheela Sridhara ◽  
Raphael Panzani
Keyword(s):  
Alternaria Alternata ◽  
Curvularia Lunata

scholarly journals Fungi inhabiting healthy grapevine canes (Vitis spp.) in some nurseries

2012 ◽  
Vol 59 (2) ◽  
pp. 163-173 ◽  
Author(s):  
Ewa Król
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Present Experiment ◽  
Plant Material ◽  
Cladosporium Cladosporioides ◽  
The Other ◽  
Qualitative Composition ◽  
Vitis Spp ◽  
Propagation Material ◽  
Apparently Healthy

The purpose of this study, conducted in the years 2000 - 2002, was to identify fungi species colonizing apparently healthy canes and to investigate whether canes storage modify the quantitative and qualitative composition of these fungi. The plant material was collected from 5 commercial plantations growing in various regions of Poland, taking into consideration 8 cultivars which were the most frequently cultivated. From each plantation and cultivar 20 apparently healthy canes were randomly sampled in two terms: before storage - November/December (term I) and 3-4 months after storage - February/March (term II). The results showed that from asymptomatic canes 2746 isolates of fungi belonging to 23 species were obtained, but the majority of them origined from canes analysed after storage. It was found that <i>P. viticola</i> is able to live latently within grapevine tissue in Polish conditions because isolates of this fungus from visually healty canes the all studied plantations and terms were obtained. Among the other fungi species inhabiting grapevine canes <i>Alternaria alternata</i> and <i>Fusarium</i> spp. dominated. Moreover, both in term I and term II <i>Botrytis cinerea</i>, <i>Phoma</i> spp., <i>Epicoccum purpurascens</i> and <i>Cladosporium cladosporioides</i> were frequently isolated, whereas fungi from the genus <i>Acremonium</i> only in the term I. Each time isolates of <i>Trichoderma</i> spp. and <i>Gliocladium</i> spp. were also obtained. Inhabitation of grapevine canes by various fungi species shown in the present experiment indicate the danger of pathogens spread with propagation material on the new plantations.

Mycoflora associated with diseased rice grains in Bangladesh and their pathogenic potentiality

2021 ◽  
Vol 7 (1) ◽  
pp. 932-940
Author(s):  
Pranami Chowdhury ◽  
Shamim Shamsi ◽  
Hasna Hena Begum ◽  
Md Abul Bashar
Keyword(s):  
Alternaria Alternata ◽  
Fusarium Moniliforme ◽  
Trichoderma Viride ◽  
Curvularia Lunata ◽  
Rice Grain ◽  
Aspergillus Clavatus ◽  
Cultivated Rice ◽  
Rice Varieties ◽  
Rice Samples ◽  
Penicillium Spp

Fifty six spotted rice grain samples of four commercially cultivated rice varieties namely BRRI 28, 29, Kalijira and Pajam were collected from 14 different districts of Bangladesh. Forty rice samples (Hybrid 2,3,4, BR7,11,12,14,16,22,23,25,26and BRRI28 to BRRI 55) were also collected from Bangladesh Rice Research Institute at Joydevpur. Twenty-fivespecies of fungi belonging to 15 genera were associated with these rice varieties. The isolated fungi were Alternaria alternata, Aspergillus clavatus, A. flavus, A. fumigatus, A.niger, A. ochraceus, A.oryzae, A. terreus, Chaetomium globosum, Cladosporium cladosporioides, Colletotrichum gloeosporioides, Curvularia lunata, C. lunata var. aeria, Drechslera oryzae, Fusarium moniliforme, F. oxysporum, F. solani, Microdochium oryzae, Nigrospora oryzae, Penicillium spp., Pestalotiopsis guepinii, Sarocladium oryzae and Trichoderma viride. Amongst these fungi nine i.e. Alternaria alternata (Fr.) Keissler, Aspergillus flavus Link, Curvularia lunata (Wakker) Boedijn, Drechsler aoryzae Breda de Haan (Subramanian and Jain), Fusarium moniliforme Sheldon, F. solani (Mart.) Sacc., Microdochium oryzae (Hashloka and Yokogi) Sam. and Hal., Pestalotiopsis guepinii (Desm.) Stay. and Sarocladium oryzae (Sawada) W. Gams and D. Hawks were found to be pathogenic to rice seeds. The most predominant fungus was D. oryzae which was followed by A. flavus and the least incidence was observed in case of F. solani and P. guepinni. Bioresearch Commu. 7(1): 932-940, 2021 (January)

scholarly journals Prevalence and Pathogenic Potentiality of Fungi Associated With Leaf Spot of Basella Alba and B. Rubra

2020 ◽  
Vol 29 (2) ◽  
pp. 183-189
Author(s):  
Nusrat Jahan Shova ◽  
Shamim Shamsi ◽  
MA Bashar
Keyword(s):  
Aspergillus Flavus ◽  
Alternaria Alternata ◽  
Leaf Spot ◽  
Curvularia Lunata ◽  
Basella Alba ◽  
Penicillium Sp ◽  
Colletotrichum Dematium ◽  
Major Species ◽  
Fusarium Semitectum ◽  
First Time

Two major species of Indian spinach, namely Basella alba L. and B. rubra L. were selected to find out associated mycoflora and their pathogenic potentiality. Ten fungi viz., Alternaria alternata, Aspergillus flavus, A. fumigatus, A. niger, Colletotrichum dematium, C. lindemuthianum, Curvularia lunata, Drechslera sacchari, Fusarium semitectum and Penicillium sp. were found to be associated with the selected leaves of Basella spp. Among the isolated fungi C. lindemuthianum, D. sacchari and F. semitectum were found to be pathogenic to Basella spp. Association of C. lindemuthianum and D. sacchari with Basella spp. are recorded first time from Bangladesh. Dhaka Univ. J. Biol. Sci. 29(2): 183-189, 2020 (July)

scholarly journals Species biodiversity of microscopic fungi of common reed (Phragmites australis (Cav.) Trin. ex Steud.) in the rush communities of Lake Glinno

2012 ◽  
Vol 58 (2) ◽  
pp. 359-368
Author(s):  
Kinga Mazurkiewicz-Zapałowicz ◽  
Krystyna Janowicz ◽  
Maria Wolska ◽  
Anna Słodownik
Keyword(s):  
Phragmites Australis ◽  
Alternaria Alternata ◽  
Common Species ◽  
Common Reed ◽  
Cladosporium Cladosporioides ◽  
Fusarium Sambucinum ◽  
Microscopic Fungi ◽  
Disease Symptoms ◽  
Green Material ◽  
Mycelia Sterilia

The studies were carried out on common reed (<i>Phragmites australis</i>) growing on the shores of Lake Glinno and forming rush communities of the alliance <i>Phragmition</i>. 10 plants with disease symptoms were gathered from each of five sites. The isolation and marking of pathogens were performed twice from fragments of leaf and blade tissues with disease symptoms. First, directly after collecting the plants incubated in sterile humid chambers and microorganism cultures on CDA and PDA medium, and then phytopathogen and saprotroph species occurring on dried green material were identified for 2-4 months. The occurrence of 31 species of microscopic fungi overall was observed on the leaves, blades and inflorescences of <i>P. australis</i>, including 2 mycelia of <i>Mycelia sterilia</i>. The most frequently occurring species, present at all sites of <i>Phragmites australis</i> are: <i>Alternaria alternata</i>, <i>Cladosporium cladosporioides</i>, <i>C. herbarum</i>, <i>Doratomyces stemonitis</i> and <i>Puccinia phragmitis</i>, <i>P. magnussiana</i> and two mycelia of <i>Mycelia sterilia</i>. The most common species occurring on blades and inside them are: <i>Acremoniella atra</i>, <i>Acremonium alternatum</i> and <i>Fusarium sambucinum</i>. Sporadically, <i>Ustilago grandis</i> was also observed inside blades. Tiny necrotic stains on leaves and blades were caused by the presence of three species of the genus Leptoshaeria: <i>L. culmifraga</i>, <i>L. eustoma</i> and <i>L. fuckelli</i>. The occurrence of the sclerote of <i>Claviceps microcephala</i> was found in inflorescences.

scholarly journals Avaliação do potencial de uso da restrição hídrica em teste de sanidade de sementes de trigo visando à detecção de fungos

2012 ◽  
Vol 34 (4) ◽  
pp. 613-618 ◽  
Author(s):  
Mauricio Mega Celano ◽  
José da Cruz Machado ◽  
David de Souza Jaccoud Filho ◽  
Renato Mendes Guimarães
Keyword(s):  
Fusarium Graminearum ◽  
Alternaria Alternata ◽  
Bipolaris Sorokiniana ◽  
Minas Gerais ◽  
Cladosporium Cladosporioides ◽  
Aspergillus Ochraceus ◽  
Pyricularia Grisea

Objetivou-se, com o presente trabalho, avaliar a viabilidade do uso da restrição hídrica, em substituição ou alternativa ao uso da técnica de congelamento de sementes de trigo, no teste de incubação em substrato de papel, blotter test. O trabalho consistiu na comparação das duas técnicas por meio do exame de 60 amostras de sementes, coletadas em diferentes áreas do Estado de Minas Gerais e outras regiões do país, tendo como restritor hídrico o soluto manitol, no potencial de -1,10 MPa, valor este determinado preliminarmente com base na capacidade de redução da germinação das sementes de trigo em condições do teste de sanidade. A incidência média de Bipolaris sorokiniana não foi afetada por nenhuma das técnicas comparadas, havendo, por outro lado, um maior estímulo da restrição hídrica em relação à Pyricularia grisea, Aspergillus ochraceus, Cladosporium cladosporioides e Epicoccum purpuracens. Para Alternaria alternata, Drechslera tritici-repentis e Fusarium graminearum, os maiores valores de incidência ocorreram no método do congelamento.

scholarly journals Unintentional transport of fungi propagules to Antarctic biome and the ability to develop at low temperatures

2020 ◽  
Vol 18 (5) ◽  
pp. 271-281
Author(s):  
Anna Augustyniuk-Kram
Keyword(s):  
Botrytis Cinerea ◽  
Filamentous Fungi ◽  
Aspergillus Flavus ◽  
Alternaria Alternata ◽  
Low Temperatures ◽  
Trichoderma Viride ◽  
Geotrichum Candidum ◽  
Cladosporium Cladosporioides ◽  
Freezing And Thawing ◽  
Penicillium Sp

Filamentous fungi relatively easily disperse and colonize a variety of substrates, inhabiting various, often extreme environments. Therefore, they spread all over the world. The purpose of the research was to determine whether the propagules of filamentous fungi brought (accidentally transported) into the Antarctic biome by tourists and members of scientific expeditions are capable of developing at low temperatures. In the studies were used seven isolates of fungi: Penicillium sp., Aspergillus flavus, Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride, Geotrichum candidum and Botrytis cinerea. The isolates came from samples collected from tourists and members of scientific expeditions arriving at the Henryk Arctowski Polish Antarctic Station on King George Island in the South Shetland archipelago. Fungal growth was measured at 0, 5, 10, 22°C (as a control) and 10° C, but after having frozen inoculum at -15°C for a period of 7 days. Penicillium sp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride, Geotrichum candidum and Botrytis cinerea were found to be capable of growing at low temperatures (5 and 10oC as well as after one freezing cycle, down to -15oC and thawing, up to +10oC). They did not produce a macroscopically visible mycelium at temp. 0oC, however, it was not a lethal temperature for them, as when they were transferred to higher temperatures, they continued to develop even after a fairly long time following the beginning of the experiment. The most vulnerable was Aspergillus flavus. At lower temperatures (from about to 5oC) it did not develop, while freezing and thawing were lethal for this species. Some species (G. candidum, T. viride and B. cinerea), despite the development of mycelium, did not produce spores at lower temperatures.

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