Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds
Studies on the ecology of the organisms involved in the production process are necessary for the development of sustainable agriculture, and sustainability is currently closely linked to the profitability of production. The objective of this study was to verify the occurrence of arbuscular mycorrhizal fungi in weeds infesting Brazilian crops and to evaluate the inorganic phosphate solubilization potential of the associated microbiota. A total of 36 weed species were evaluated for the occurrence of mycorrhizae; of these, 11 were selected to evaluate their potential for total and relative phosphate solubilization. All of the species demonstrated mycorrhizal colonization, including a member of the Brassicaceae family, which is usually assumed to be non-mycorrhizal. In most of the species, morphological types of arbuscular and coiled hyphae were observed, with the coiled hyphae being the most common in the grasses. Dark septate endophytic fungi were observed in most of the plants. The weeds presented different potentials for P solubilization in the rhizosphere; Amaranthus retroflexus, Bidens pilosa and Leonotis nepetaefolia showed high values of relative phosphate solubilization. This is the first report on the mycorrhizae and phosphate solubilization activity in weeds in Brazil.
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Editora da Universidade Estadual de Maringá - EDUEM
2013
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oai:scielo:S1807-862120130001000062013-01-21Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weedsSantos,Edson Aparecido dosFerreira,Lino RobertoCosta,Maurício DutraSilva,Marliane de Cássia Soares daReis,Marcelo Rodrigues dosFrança,André Cabral arbuscular mycorrhiza dark septate endophytes Sinapis arvensis L. microbial biomass phosphate solubilizers Studies on the ecology of the organisms involved in the production process are necessary for the development of sustainable agriculture, and sustainability is currently closely linked to the profitability of production. The objective of this study was to verify the occurrence of arbuscular mycorrhizal fungi in weeds infesting Brazilian crops and to evaluate the inorganic phosphate solubilization potential of the associated microbiota. A total of 36 weed species were evaluated for the occurrence of mycorrhizae; of these, 11 were selected to evaluate their potential for total and relative phosphate solubilization. All of the species demonstrated mycorrhizal colonization, including a member of the Brassicaceae family, which is usually assumed to be non-mycorrhizal. In most of the species, morphological types of arbuscular and coiled hyphae were observed, with the coiled hyphae being the most common in the grasses. Dark septate endophytic fungi were observed in most of the plants. The weeds presented different potentials for P solubilization in the rhizosphere; Amaranthus retroflexus, Bidens pilosa and Leonotis nepetaefolia showed high values of relative phosphate solubilization. This is the first report on the mycorrhizae and phosphate solubilization activity in weeds in Brazil.info:eu-repo/semantics/openAccessEditora da Universidade Estadual de Maringá - EDUEMActa Scientiarum. Agronomy v.35 n.1 20132013-03-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86212013000100006en10.4025/actasciagron.v35i1.15047 |
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Santos,Edson Aparecido dos Ferreira,Lino Roberto Costa,Maurício Dutra Silva,Marliane de Cássia Soares da Reis,Marcelo Rodrigues dos França,André Cabral |
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Santos,Edson Aparecido dos Ferreira,Lino Roberto Costa,Maurício Dutra Silva,Marliane de Cássia Soares da Reis,Marcelo Rodrigues dos França,André Cabral Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
author_facet |
Santos,Edson Aparecido dos Ferreira,Lino Roberto Costa,Maurício Dutra Silva,Marliane de Cássia Soares da Reis,Marcelo Rodrigues dos França,André Cabral |
author_sort |
Santos,Edson Aparecido dos |
title |
Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
title_short |
Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
title_full |
Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
title_fullStr |
Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
title_full_unstemmed |
Occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
title_sort |
occurrence of symbiotic fungi and rhizospheric phosphate solubilization in weeds |
description |
Studies on the ecology of the organisms involved in the production process are necessary for the development of sustainable agriculture, and sustainability is currently closely linked to the profitability of production. The objective of this study was to verify the occurrence of arbuscular mycorrhizal fungi in weeds infesting Brazilian crops and to evaluate the inorganic phosphate solubilization potential of the associated microbiota. A total of 36 weed species were evaluated for the occurrence of mycorrhizae; of these, 11 were selected to evaluate their potential for total and relative phosphate solubilization. All of the species demonstrated mycorrhizal colonization, including a member of the Brassicaceae family, which is usually assumed to be non-mycorrhizal. In most of the species, morphological types of arbuscular and coiled hyphae were observed, with the coiled hyphae being the most common in the grasses. Dark septate endophytic fungi were observed in most of the plants. The weeds presented different potentials for P solubilization in the rhizosphere; Amaranthus retroflexus, Bidens pilosa and Leonotis nepetaefolia showed high values of relative phosphate solubilization. This is the first report on the mycorrhizae and phosphate solubilization activity in weeds in Brazil. |
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Editora da Universidade Estadual de Maringá - EDUEM |
publishDate |
2013 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86212013000100006 |
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