Fungos filamentosos em folhas do ambiente terrestre e aquático da Ilha dos Eucaliptos, Represa do Guarapiranga, São Paulo, SP

Wellbaum, Christian; Schoenlein-Crusius, Iracema Helena; Santos, Valéria Barro Dos

doi:10.1590/s0100-84041999000100009

Cited by 11 publications

(12 citation statements)

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“…O predomínio de hifomicetos no folhedo foi observado em pesquisas realizadas no Brasil (Maia 1983;Schoenlein-Crusius & Milanez 1998;Wellbaum et al 1999;Gusmão et al 2001) e em outros países: Porto Rico (Polishook et al 1996), Austrália (Parungao et al 2002) e Costa Rica (Bills & Polishook 1994).…”

Section: Resultsunclassified

Fungos conidiais associados ao folhedo de Clusia melchiorii Gleason e C. nemorosa G. Mey. (Clusiaceae) em fragmento de Mata Atlântica, BA, Brasil

2009

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Visando ampliar o conhecimento sobre diversidade de fungos conidiais, 10 folhas mortas de três indivíduos de C. melchiorii e de C. nemorosa foram coletadas bimestralmente na Serra da Jibóia, Bahia, no período de outubro/2005 a junho/2006. As folhas foram lavadas em água corrente e mantidas em câmara-úmida durante 30 dias. As estruturas fúngicas foram retiradas para estudo morfológico. Foram identificados 79 táxons de Ascomycota na forma anamórfica. Destes, 78 são hifomicetos e um celomiceto. Do total, 87% ocorreram sobre C. melchiorii e 55% sobre C. nemorosa. A maioria dos fungos apresentou freqüência esporádica e constância acidental. As espécies mais freqüentes foram: Beltrania rhombica Penz., Chaetopsina fulva Rambelli, Dactylaria ficusicola Paulus, Gadek & Hyde, Verticillium theobromae (Turconi) Mason & Hughes e Volutella sp. 1 (sobre C. melchiorii) e Atroseptaphiale flagelliformis Matsush., Pseudobeltrania sp., Zygosporium gibbum (Sacc., Rousseau & Bommer) Hughes, Verticillium theobromae (Turconi) Mason & Hughes e Volutella sp. 1 (sobre C. nemorosa). A similaridade de fungos entre as duas espécies de Clusia atingiu 60% e 11 táxons foram constantes nos dois hospedeiros: Atrosetaphiale flagelliformis, Beltraniella portoricensis (Stevens) Piroz. & Patil, Chalara alabamensis Jones & Ingram., Cryptophiale kakombensis Piroz., Parasympodiella laxa (Subram. & Vittal), Speiropsis scopiformis Kuthub. & Nawawi, Thozetella cristata Piroz. & Hodges, Umbellidion radulans Sutton & Hodges, Verticillium theobromae, Volutella sp. 2 e Zygosporium gibbum. Os dados mostram que o folhedo produzido por C. melchiorii e C. nemorosa, na Serra da Jibóia, é rico em fungos conidiais. Esses fungos, como decompositores, são importantes para a dinâmica do ecossistema estudado.

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Section: Resultsunclassified

Fungos conidiais associados ao folhedo de Clusia melchiorii Gleason e C. nemorosa G. Mey. (Clusiaceae) em fragmento de Mata Atlântica, BA, Brasil

2009

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“…According to Melnitchouk et al (2005) and Wellbaum et al (1999), this may be associated with the changes in the composition of root exudates over the phenological cycle of the plant, causing variation in the rhizodeposition, and with the hydrosoluble substances released by decomposition of organic matter, which represent an energy source promptly available for the microorganisms. In addition, Parkinson et al (1963) apud Souza-Motta et al (2003) mentioned that the young roots are initially colonized by a diversity of soil fungi which after some days are substituted by a more restricted mycobiota that remains until the senescence of the roots.…”

Section: Discussionmentioning

confidence: 99%

Filamentous fungi isolated from the rhizosphere of melon plants (Cucumis melo L. cv. Gold Mine) cultivated in soil with organic amendments

2010

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Rhizosphere soil samples were collected in a semiarid area, in the region of the São Francisco River valley, Petrolina, Pernambuco state, Brazil, to study the diversity of filamentous fungi in a soil cultivated with melon (Cucumis melo L. cv. Gold Mine) and receiving different organic amendments: Treatment 1 (control, without organic compost); T2 (77% coconut fiber, 20% goat manure and 3% K2SO4); T3 (10% Ricinus communis leaves and stems, 50% Pennisetum purpureum leaves and 40% goat manure); T4 (77% coconut fiber, 20% goat manure and 3% termophosphate); T5 (47% Pennisetum purpureum leaves, 50% goat manure and 3% K2SO4); and T6 (57% Pennisetum purpureum leaves, 40% goat manure and 3% termophosphate). Fungal isolation was carried out by the serial dilution technique to 1:1000. The Sorensen index of similarity, frequency and distribution of the fungi were evaluated. Seventy-eight species of filamentous fungi were isolated and identified, plus several Basidiomycota (04) and Mycelia sterilia (02). The predominant genera were Aspergillus and Penicillium, with 15 and 13 species, respectively. A greater number of species was found in the sowing period (49), and in relation to the organic fertilization, treatment 6 provided the greatest species diversity (43 species). Most of the species are saprobes and only a few are considered to be potential pathogens on melon plants, such as Fusarium oxysporum, F. solani and Myrothecium roridum.

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“…(Santos et al 1998), afetando também 41 táxons de fungos filamentosos, além de decompositores de folhas dessa região (Wellbaum et al 1999).…”

Section: Methodsunclassified

Fungos anamorfos do solo da região dos lagos no Município de Santa Gertrudes, SP, Brasil

Schoenlein¹,

Corso²,

Schoenlein-Crusius³

et al. 2008

Rev. bras. Bot.

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Fungos filamentosos em folhas do ambiente terrestre e aquático da Ilha dos Eucaliptos, Represa do Guarapiranga, São Paulo, SP

Cited by 11 publications

References 0 publications

Fungos conidiais associados ao folhedo de Clusia melchiorii Gleason e C. nemorosa G. Mey. (Clusiaceae) em fragmento de Mata Atlântica, BA, Brasil

Fungos conidiais associados ao folhedo de Clusia melchiorii Gleason e C. nemorosa G. Mey. (Clusiaceae) em fragmento de Mata Atlântica, BA, Brasil

Filamentous fungi isolated from the rhizosphere of melon plants (Cucumis melo L. cv. Gold Mine) cultivated in soil with organic amendments

Fungos anamorfos do solo da região dos lagos no Município de Santa Gertrudes, SP, Brasil

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