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

Coutinho, Flávia Paiva; Cavalcanti, María Auxiliadora de Queiroz; Yano‐Melo, Adriana Mayumi

doi:10.1590/s0102-33062010000100032

Cited by 9 publications

(10 citation statements)

References 14 publications

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“…In the particular case of Penicillium, the spores in the soil may remain dormant until the favourable environmental conditions come up to their development. Coutinho et al (2010) isolated fungi from the rhizosphere of Cucumis melo (melon) grown in soil containing organic compounds in the semi-arid region of Petrolina, Pernambuco, Brazil. The authors found 25 genera and 75 species.…”

Section: Discussionmentioning

confidence: 99%

Diversity of Penicillium in soil of Caatinga and Atlantic Forest areas of Pernambuco, Brazil: an ecological approach

Cruz¹,

Santos²,

Lima³

et al. 2013

nova_hedwigia

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Caatinga is characterised as being a unique semi-arid biome only found in Brazil. It is characterised mainly for its soil poor in mineral and organic nutrients, and low water activity. On the other hand, Atlantic Forest is mainly characterised by its nutrient-rich soil, and its high water activity. Fungi are important constituents of both biomes. Among the fungi frequently isolated from soil of both Caatinga and Atlantic Forest, species of Penicillium are prominent. The richness, abundance, evenness, and dominance of species of Penicillium in soils of the Caatinga and Atlantic Forest areas in Pernambuco, Brazil, were analyzed. The influence of seasonality (rainy and dry seasons) on the communities of species of Penicillium in each biome and their distribution was assessed. A total of 815 Penicillium isolates was found. From this total amount, 370 isolates were found in the Caatinga soil, whereas 445 were found in the Atlantic Forest soil. Thirty-one species were morphologically identified, with 23 of them in the Caatinga soil and 17 in the Atlantic Forest soil. In addition, three isolates from Caatinga soil were only identified to genus. The present study revealed that soils from Caatinga and Atlantic Forest have a high diversity of species of Penicillium, with the Caatinga presenting rare species. Furthermore, the communities of Penicillium species are very different, but well distributed in each biome. In the dry season, there was greater species richness in areas of the two biomes, indicating that the species may be well adapted to low soil water availability for the development and maintenance of balanced communities.

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Section: Discussionmentioning

confidence: 99%

Diversity of Penicillium in soil of Caatinga and Atlantic Forest areas of Pernambuco, Brazil: an ecological approach

Cruz¹,

Santos²,

Lima³

et al. 2013

nova_hedwigia

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“…All these characteristics confer a peculiar structure and functionality on the biome; in other words, a biome has its own ecology (Coutinho et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Anthropization Effects on the Filamentous Fungal Community of the Brazilian Catimbau National Park

Cruz

Ramos

Fonseca

et al. 2017

Rev. Bras. Ciênc. Solo

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ABSTRACT:The Caatinga biome features an exclusive endemic biodiversity, and is characterized by the presence of xerophytic, deciduous vegetation, high temperatures, and low rainfall. This important park has undergone anthropization, especially through extraction of firewood and timber and growing plants for raising goats. The objectives of this study were to compare the communities of filamentous fungi present in the preserved area and in the anthropized soil of the Catimbau National Park in Buíque, PE, Brazil, and to evaluate the impacts of anthropization on such communities. A total of 12 collections of soil samples were made, six in the preserved area and six in the anthropic area, and the physicochemical properties of the soil samples were analyzed. Fungi were isolated through suspension and serial dilution methods. After growth, the samples were purified and identified based on classical taxonomy, according to specific literature. The diversity, evenness, richness, dominance, frequency, and similarity among the species of filamentous fungi in both areas were assessed based on ecological indexes. A total of 4,488 colony-forming units of filamentous fungi were obtained, which were distributed into 65 species belonging to 15 genera. In the preserved area, higher abundance and richness of species were observed, with predominance of the genera Aspergillus and Penicillium. In both areas, diversity and equitability were high, demonstrating that the species are well distributed in these areas. In the preserved area, the dominant genera were Aspergillus, Gongronella, and Penicillium, whereas Aspergillus was the dominant genus in the anthropic area. Two distinct communities were observed in the areas analyzed. Principal component analysis showed that Penicillium simplicissimum influences the total diversity of both communities. The anthropization that occurred in the Catimbau National Park has changed the composition of the filamentous fungal communities of the site, restricting the number of species and decreasing the abundance of these important microorganisms. This results in ecosystem damage and likely causes relevant major imbalances, with serious consequences, such as possible disappearance of the aforementioned species, as well as of species yet undiscovered by the scientific community.

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“…Melonis. Esta patologia é responsável por perdas severas da produção no Brasil e no mundo, com relatos em diversas áreas de produção (Marinho et al, 2002;Coutinho et al, 2010).…”

Section: Introductionunclassified

Extrato etanólico de Senna alata no controle de Fusarium oxysporum, causador da murcha-de-fusarium do meloeiro

Medeiros

Albuquerque³

et al. 2012

Rev. bras. eng. agríc. ambient.

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A murcha-de-fusarium, causada pelo fungo Fusarium oxysporum, vem-se tornando uma doença importante no meloeiro devido às grandes perdas em áreas de produção no Brasil e no mundo, razão pela qual o objetivo do presente trabalho foi avaliar a eficácia de extratos etanólicos de partes de Senna alata no controle do crescimento micelial de F. oxysporum isolado de plantas de meloeiro. O delineamento experimental foi inteiramente casualizado, distribuído em esquema fatorial 4 x 6 + 1, sendo o primeiro fator partes da planta (caule, folha, raiz e vagem) e, como segundo, seis concentrações (0,25; 0,50; 50; 75; 250; 500 µg mL-1) mais a testemunha, com quatro repetições por tratamento. As variáveis avaliadas foram: taxa de crescimento micelial inibição do crescimento micelial e área abaixo da curva do crescimento micelial. Extratos etanólicos de todas as partes de Senna alata foram eficazes no controle de F. oxysporum. Extratos de raiz e vagem foram os mais eficientes em inibir o crescimento micelial de F. oxysporum, na concentração 500 µg mL-1.

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

Cited by 9 publications

References 14 publications

Diversity of Penicillium in soil of Caatinga and Atlantic Forest areas of Pernambuco, Brazil: an ecological approach

Diversity of Penicillium in soil of Caatinga and Atlantic Forest areas of Pernambuco, Brazil: an ecological approach

Anthropization Effects on the Filamentous Fungal Community of the Brazilian Catimbau National Park

Extrato etanólico de Senna alata no controle de Fusarium oxysporum, causador da murcha-de-fusarium do meloeiro

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