Ecology and diversity of leaf litter fungi during early-stage decomposition in a seasonally dry tropical forest

Prakash, Chander; Thirumalai, E.; Rajulu, M. B. Govinda; Thirunavukkarasu, N.; Suryanarayanan, T. S.

doi:10.1016/j.funeco.2015.05.004

Cited by 33 publications

(17 citation statements)

References 41 publications

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“…However, the disease was of low severity and did not affect productivity of the plantations (Nghia, 2010(Nghia, , 2015. Pestalotiopsis species were also among the most abundant litter degraders of tropical trees (Prakash, Thirumalai, Govinda Rajulu, Thirunavukkarasu, & Suryanarayanan, 2015). Pestalotiopsis species were also among the most abundant litter degraders of tropical trees (Prakash, Thirumalai, Govinda Rajulu, Thirunavukkarasu, & Suryanarayanan, 2015).…”

Section: Discussionmentioning

confidence: 96%

“…In tropical areas, some Pestalotiopsis species such as P. theae cause serious disease on oil palm leaves, as reported in Thailand (Suwannarach, Sujarit, Kumla, Bussaban, & Lumyong, 2013), though Reddy et al (2016) consider that many Pestalotiopsis species, including Pestalotiopsis theae, are generalist endophytes in a range of tropical trees. Pestalotiopsis species were also among the most abundant litter degraders of tropical trees (Prakash, Thirumalai, Govinda Rajulu, Thirunavukkarasu, & Suryanarayanan, 2015). Some endophytes species may behave similarly to the wood decay basidiomycetes, surviving at low levels until the death of the host, at which time those fungi already occupying the substrate gain first access to the available nutrients (Chapela & Boddy, 1988).…”

Section: Comparison Of Fungal Isolates and 454sequence Otus At The mentioning

confidence: 99%

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Wood‐rotting basidiomycetes are a minor component of fungal communities associated with Acacia hybrid trees grown for sawlogs in South Vietnam

et al. 2019

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Acacia hybrid (Acacia mangium × Acacia auriculiformis) clones are widely planted in Vietnam with a total of approximately 400,000 ha to meet the demand for pulpwood, sawn timber and wood chip exports. Silvicultural techniques such as pruning and thinning have been applied to improve productivity and sawlog quality of Acacia hybrid plantations. However, those techniques may also create opportunities for wood decay fungi to enter the Acacia hybrid stems through wounds and cause stem defects that reduce sawlog quality and the value of the plantation. The presence of fungal decay agents in Acacia hybrid trees was examined in two Vietnamese plantations. In July 2011, just prior to a second thinning, discoloured wood samples were taken from a three-year-old Acacia hybrid plantation at Phan Truong Hai for the isolation of fungi. In July 2012, approximately 18 months after pruning and thinning treatments, discoloured wood samples were taken from a three-year-old Acacia hybrid plantation at Nghia Trung for the isolation of fungi. DNA sequencing of the rDNA ITS identified the isolates. In May 2015, approximately 4 years after thinning and fertilizer treatments, discoloured and decayed wood samples were taken from the above (7-year-old) Acacia hybrid plantation at Phan Truong Hai for fungal identification.DNA was extracted directly from discoloured and decayed wood samples and fungal rDNA ITS amplicons sequenced on a Roche 454 sequencer. The results showed that silvicultural treatments did not affect the fungal communities associated with discoloured and decayed wood of Acacia hybrid plantation at Phan Truong Hai. A total of 135 fungal species or OTUs (operational taxonomic units) were identified, including 82 members of Ascomycota and 52 Basidiomycota. K E Y W O R D SCeratocystis, endophytes, Pseudolagarobasidium, stem defects, Xylariaceae

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Section: Discussionmentioning

confidence: 96%

Section: Comparison Of Fungal Isolates and 454sequence Otus At The mentioning

confidence: 99%

Wood‐rotting basidiomycetes are a minor component of fungal communities associated with Acacia hybrid trees grown for sawlogs in South Vietnam

et al. 2019

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“…Em que sua mortalidade pode ocorrer imediatamente após os incêndios de alta intensidade ou ser adiada após um incêndio de baixa intensidade (Treseder et al;Conedera et al;2007;Ascoli et al, 2013). Prakash et al (2015) em sua pesquisa sobre a ecologia e diversidade de fungos da serapilheira durante a decomposição em estágio inicial em uma floresta tropical sazonal observou que alguns gêneros de fungos possuem adaptações que favorecem a sua sobrevivência em ecossistemas florestais propensos a incêndios florestais. As características dos ecossistemas devem ser levadas em consideração, quando a tomada de decisão acerca dos regimes de fogo ideais.…”

Section: Discussionunclassified

Meta-análise de estudos sobre o efeito do fogo nos biomas florestais em relação aos microrganismos fúngicos

2020

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RESUMO: O fogo é um elemento da mudança global que pode influenciar as comunidades fúngicas, com intuito de compreender como o fogo influência essas comunidades, foi realizado uma revisão sistemática com meta-análise de 30 estudos que abordassem o tema respostas fúngicas ao fogo. Dos estudos avaliados 56,67% obtiveram resultados positivos para o uso do fogo em função da comunidade fúngica e 43,33% apresentaram efeitos negativos, 56,66% das análises dos microrganismos fúngicos foram realizadas através da coleta do solo. As respostas dos microrganismos fúngicos ao fogo diferiram significativamente entre os tipos de vegetação, a biomassa fúngica aumentou após incêndios em Florestas boreais, mas não após incêndios em Florestas temperadas e tropicais, a Floresta tropical não apresentou diferenças entre os incêndios florestais e queima prescrita. Foi verificado nesta meta-análise que os incêndios florestais levam a uma maior redução da comunidade fúngica do que as queimadas prescritas. Os mecanismos ou processos responsáveis pela diversidade de espécies de fungos após o uso do fogo tanto para incêndios como queima prescrita permanecem desconhecidos. Desta forma a padronização das metodologias é necessária para que se possa realizar comparações entre os estudos da mesma tipologia de vegetação. Meta-analysis of studies on the effect of fire on forest biomes in relation to fungal microorganisms ABSTRACT: Fire is an element of global change that can influence fungal communities, thus participating in the dynamics of ecosystems. In order to understand how fire influences these communities, a meta-analysis of 30 fungal responses published to fire was carried out. From the studied studies 56,67% obtained positive results for the use of fire as a function of the fungal community and 43,33% presented negative effects, 56,66% of the analysis of the fungal microorganisms was done through the collection of the soil. The responses of fungal microorganisms to fire differed significantly between vegetation types and fungal biomass increased after fires in boreal forests, but not after fires in temperate and tropical forests, the tropical forest did not present differences between forest fires and prescribed burning. It was verified in this meta-analysis that the forest fires lead to a greater reduction of the fungal community than the prescribed fires. The mechanisms or processes responsible for the diversity of fungal species after the use of fire for both fire and prescribed burning remain unknown. In this way the standardization of methodologies is necessary so that comparisons can be made between the studies of the same typology of vegetation.

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“…El reciclaje de nutrimentos por los hongos facilita la transformación de moléculas orgánicas complejas a más simples, proceso clave en los ecosistemas para liberar los nutrimentos de la materia vegetal muerta y promover la fertilidad del suelo (Carney y Matson 2006). Dependiendo de la identidad y las características químicas de las hojas de las especies arbóreas, a medida que la hojarasca se descompone, la composición química se modica y la riqueza y diversidad de hongos saprobios varía de acuerdo a las condiciones ambientales, la biomasa y el grado de descomposición (Prakash et al 2015).…”

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“…Pocos estudios analizan la relación que existe entre las mezclas de hojarasca de diferentes especies, como un factor relevante en la estructuración de las comunidades de organismos degradadores en bosque tropicales y de los procesos del ecosistema en que ellos intervienen (Martínez y Galindo-Leal 2002, McGuire et al 2012, Prakash et al 2015. Debido a que las especies de plantas dieren en la calidad de la hojarasca que producen, la identidad de la planta es determinante en la estructura de la comunidad de degradadores (Osono 2003).…”

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La identidad de la hojarasca de árboles tropicales determina la riqueza de hongos saprobios y la pérdida de biomasa

Gómez‐Cornelio

Morón‐Ríos

2018

Ecosist. Recur. Agropec.

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las condiciones ambientales y los organismos involucrados, entre ellos la comunidad fúngica. El objetivo fue determinar la relación entre la hojarasca de Piscidia piscipula, Bursera simaruba y Cedrela odorata con la pérdida de biomasa y la colonización fúngica, bajo condiciones de laboratorio a corto plazo. Se establecieron tratamientos monoespecícos y en las combinaciones posibles de las hojas de las especies arbóreas mencionadas. Se aplicó humedad a cada tratamiento y se analizó la pérdida de biomasa de cada especie de hojarasca, así como la identidad de las especies de hongos en cada tratamiento. Se diferenciaron 48 morfoespecies de hongos, con mayor número de morfoespecies exclusivas para Cedrela odorata. La presencia de Cedrela odorata en las mezclas, incrementó la riqueza de morfoespecies de hongos para las otras especies de árboles, mientras que la presencia de Bursera simaruba, disminuyó esta variable, posiblemente por su composición química. A pesar del corto tiempo, se encontró pérdida de biomasa signicativa en las mezclas de hojas con Cedrela odorata mientras que en las mezclas con Piscidia piscipula y Bursera simaruba no se encontraron diferencias signicativas. También se observó que la pérdida de biomasa y la riqueza de morfoespecies de hongos fue determinada por la identidad de la hojarasca, más que por el número de especies en las mezclas de hojas. Palabras clave: Bursera simaruba, Cedrela odorata, morfoespecies fúngicas, Piscidia piscipula, similitud ABSTRACT. The decomposition of litter and the release of nutrients depend on multiple factors such as the identity and characteristics of the litter, environmental conditions and the organisms involved, including the fungal community. The objective was to determine the relationship between the litter of Piscidia piscipula, Bursera simaruba and Cedrela odorata with biomass loss and fungal colonization, under short-term laboratory conditions. Monospecic treatments were established and in the possible combinations of the leaves of the mentioned tree species. Moisture was applied to each treatment and the biomass loss of each litter species was analyzed, as well as the identity of the fungal species in each treatment. Forty-eight morphospecies of fungi were dierentiated, with a greater number of exclusive morphospecies for Cedrela odorata. The presence of Cedrela odorata in the mixtures increased the richness of fungal morphospecies for the other tree species, while the presence of Bursera simaruba decreased this variable, possibly due to its chemical composition. Despite the short time, signicant biomass loss was found in the leaf mixtures with Cedrela odorata, while in the mixtures with Piscidia piscipula and Bursera simaruba no signicant dierences were found. It was also observed that the loss of biomass and the richness of fungal morphospecies were determined by the identity of the litter, rather than by the number of species in the leaf mixtures.

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Ecology and diversity of leaf litter fungi during early-stage decomposition in a seasonally dry tropical forest

Cited by 33 publications

References 41 publications

Wood‐rotting basidiomycetes are a minor component of fungal communities associated with Acacia hybrid trees grown for sawlogs in South Vietnam

Wood‐rotting basidiomycetes are a minor component of fungal communities associated with Acacia hybrid trees grown for sawlogs in South Vietnam

Meta-análise de estudos sobre o efeito do fogo nos biomas florestais em relação aos microrganismos fúngicos

La identidad de la hojarasca de árboles tropicales determina la riqueza de hongos saprobios y la pérdida de biomasa

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