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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
29/09/2023 |
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Data da última atualização: |
29/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRAGA, J. G. B.; NOVAIS, C. B. de; DINIZ, P. P.; ARAGÃO, O. O. da S.; SAGGIN JUNIOR, O. J.; JESUS, E. da C. |
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Afiliação: |
JOÃO GABRIEL BARBOSA BRAGA, UFLA; CÂNDIDO BARRETO DE NOVAIS, UFRRJ; PRISCILA PEREIRA DINIZ, UFLA; OSNAR OBEDE DA SILVA ARAGÃO, UFLA; ORIVALDO JOSE SAGGIN JUNIOR, CNPAB; EDERSON DA CONCEICAO JESUS, CNPAB. |
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Título: |
Association of mycoheterotrophic Gentianaceae with specific Glomus lineages. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Mycorrhiza, v. 33, n. 4, p. 249 - 256, July 2023. |
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Idioma: |
Inglês |
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Conteúdo: |
Some plant species took an alternative evolutionary pathway in which they lost their photosynthetic capacity to depend exclusively on carbon supplied by arbuscular mycorrhizal fungi (AMF) in an association called mycoheterotrophy. Among them is Voyriella parviflora, a species of the family Gentianaceae, which is found in tropical regions such as the Amazon basin. Here, we assessed the identity of AMF symbionts associated with this species. DNA was isolated from eight Gentianaceae specimens and from litter and surrounding roots of photosynthetic plants. The atp1 gene was amplified by Sanger sequencing to determine the taxonomic affiliation of the mycoheterotrophic plants. A 280 bp region of the 18S rRNA gene of AMF was amplified with primers NS31/AML2 by high-throughput sequencing. The mycoheterotrophic specimens were assigned to V. parviflora with a bootstrap support of 72%. Glomus was the most abundant AMF genus, both in the mycoheterotrophic plants and in the litter and roots of photosynthetic plants. In addition, a few Glomus genotypes were abundantly enriched in the mycoheterotrophic plants, with only a few specimens colonized by Gigaspora, Acaulospora, and Scutellospora in a low proportion. These genotypes formed a cluster within a larger clade, suggesting that V. parviflora shows a preferential association with a narrow Glomus lineage which is not phylogenetically close to a previously identified V. parviflora?s associated lineage. Furthermore, detecting fungi from other families suggests that V. parviflora is colonized by other genera, although with low frequency. These findings provide new insights into the association between AMF and mycoheterotrophic species and highlight the importance of considering trap culture-independent approaches in understanding this symbiosis MenosSome plant species took an alternative evolutionary pathway in which they lost their photosynthetic capacity to depend exclusively on carbon supplied by arbuscular mycorrhizal fungi (AMF) in an association called mycoheterotrophy. Among them is Voyriella parviflora, a species of the family Gentianaceae, which is found in tropical regions such as the Amazon basin. Here, we assessed the identity of AMF symbionts associated with this species. DNA was isolated from eight Gentianaceae specimens and from litter and surrounding roots of photosynthetic plants. The atp1 gene was amplified by Sanger sequencing to determine the taxonomic affiliation of the mycoheterotrophic plants. A 280 bp region of the 18S rRNA gene of AMF was amplified with primers NS31/AML2 by high-throughput sequencing. The mycoheterotrophic specimens were assigned to V. parviflora with a bootstrap support of 72%. Glomus was the most abundant AMF genus, both in the mycoheterotrophic plants and in the litter and roots of photosynthetic plants. In addition, a few Glomus genotypes were abundantly enriched in the mycoheterotrophic plants, with only a few specimens colonized by Gigaspora, Acaulospora, and Scutellospora in a low proportion. These genotypes formed a cluster within a larger clade, suggesting that V. parviflora shows a preferential association with a narrow Glomus lineage which is not phylogenetically close to a previously identified V. parviflora?s associated lineage. Furthermore, detecting fungi from oth... Mostrar Tudo |
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Palavras-Chave: |
Amazon; Metabarcoding; Mycoheterotrophy; Rbuscular mycorrhizal fungi. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02480naa a2200229 a 4500
001 2156980
005 2023-09-29
008 2023 bl uuuu u00u1 u #d
100 1 $aBRAGA, J. G. B.
245 $aAssociation of mycoheterotrophic Gentianaceae with specific Glomus lineages.$h[electronic resource]
260 $c2023
520 $aSome plant species took an alternative evolutionary pathway in which they lost their photosynthetic capacity to depend exclusively on carbon supplied by arbuscular mycorrhizal fungi (AMF) in an association called mycoheterotrophy. Among them is Voyriella parviflora, a species of the family Gentianaceae, which is found in tropical regions such as the Amazon basin. Here, we assessed the identity of AMF symbionts associated with this species. DNA was isolated from eight Gentianaceae specimens and from litter and surrounding roots of photosynthetic plants. The atp1 gene was amplified by Sanger sequencing to determine the taxonomic affiliation of the mycoheterotrophic plants. A 280 bp region of the 18S rRNA gene of AMF was amplified with primers NS31/AML2 by high-throughput sequencing. The mycoheterotrophic specimens were assigned to V. parviflora with a bootstrap support of 72%. Glomus was the most abundant AMF genus, both in the mycoheterotrophic plants and in the litter and roots of photosynthetic plants. In addition, a few Glomus genotypes were abundantly enriched in the mycoheterotrophic plants, with only a few specimens colonized by Gigaspora, Acaulospora, and Scutellospora in a low proportion. These genotypes formed a cluster within a larger clade, suggesting that V. parviflora shows a preferential association with a narrow Glomus lineage which is not phylogenetically close to a previously identified V. parviflora?s associated lineage. Furthermore, detecting fungi from other families suggests that V. parviflora is colonized by other genera, although with low frequency. These findings provide new insights into the association between AMF and mycoheterotrophic species and highlight the importance of considering trap culture-independent approaches in understanding this symbiosis
653 $aAmazon
653 $aMetabarcoding
653 $aMycoheterotrophy
653 $aRbuscular mycorrhizal fungi
700 1 $aNOVAIS, C. B. de
700 1 $aDINIZ, P. P.
700 1 $aARAGÃO, O. O. da S.
700 1 $aSAGGIN JUNIOR, O. J.
700 1 $aJESUS, E. da C.
773 $tMycorrhiza$gv. 33, n. 4, p. 249 - 256, July 2023.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
28/06/2000 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
ARAÚJO, A. P.; TEIXEIRA, M. G.; ALMEIDA, D. L. de. |
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Afiliação: |
ADELSON PAULO ARAÚJO, Universidade Federal Rural do Rio de Janeiro - UFRRJ; MARCELO GRANDI TEIXEIRA, CNPAB; DEJAIR LOPES DE ALMEIDA, CNPAB. |
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Título: |
Growth and yield of common bean cultivars at two soil phosphorus levels under biological nitrogen fixation. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 4, p. 809-817, abr. 2000. |
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Idioma: |
Inglês |
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Notas: |
Título em Português: Crescimento e produção de cultivares de feijoeiro em dois níveis de fósforo no solo sob fixação biológica de nitrogênio. |
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Conteúdo: |
The genotypic differences on growth and yield of common bean (Phaseolus vulgaris L.) in response to P supply were evaluated in a field experiment under biological N2 fixation. Eight cultivars were grown at two levels of applied P (12 and 50 kg ha-1 of P ¾ P1 and P2 respectively), in randomized block design in factorial arrangement. Vegetative biomass was sampled at three ontogenetic stages. The effects of genotype and phosphorus were significant for most traits, but not the genotype phosphorus interaction. The cultivars presented different patterns of biomass production and nutrient accumulation, particularly on root system. At P1, P accumulation persisted after the beginning of pod filling, and P translocation from roots to shoots was lower. The nodule senescence observed after flowering might have reduced N2 fixation during pod filling. The responses of vegetative growth to the higher P supply did not reflect with the same magnitude on yield, which increased only 6% at P2; hence the harvest index was lower at P2. The cultivars with highest yields also presented lower grain P concentrations. A sub-optimal supply of N could have limited the expression of the yield potential of cultivars, reducing the genotypic variability of responses to P levels. |
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Palavras-Chave: |
Bean. |
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Thesagro: |
Colheita; Feijão; Phaseolus Vulgaris. |
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Thesaurus NAL: |
Genotype; Harvest index; Harvesting; Nodulation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/17278/1/pab98_149.pdf
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Marc: |
LEADER 02133naa a2200253 a 4500
001 1101809
005 2019-02-25
008 2000 bl uuuu u00u1 u #d
100 1 $aARAÚJO, A. P.
245 $aGrowth and yield of common bean cultivars at two soil phosphorus levels under biological nitrogen fixation.
260 $c2000
500 $aTítulo em Português: Crescimento e produção de cultivares de feijoeiro em dois níveis de fósforo no solo sob fixação biológica de nitrogênio.
520 $aThe genotypic differences on growth and yield of common bean (Phaseolus vulgaris L.) in response to P supply were evaluated in a field experiment under biological N2 fixation. Eight cultivars were grown at two levels of applied P (12 and 50 kg ha-1 of P ¾ P1 and P2 respectively), in randomized block design in factorial arrangement. Vegetative biomass was sampled at three ontogenetic stages. The effects of genotype and phosphorus were significant for most traits, but not the genotype phosphorus interaction. The cultivars presented different patterns of biomass production and nutrient accumulation, particularly on root system. At P1, P accumulation persisted after the beginning of pod filling, and P translocation from roots to shoots was lower. The nodule senescence observed after flowering might have reduced N2 fixation during pod filling. The responses of vegetative growth to the higher P supply did not reflect with the same magnitude on yield, which increased only 6% at P2; hence the harvest index was lower at P2. The cultivars with highest yields also presented lower grain P concentrations. A sub-optimal supply of N could have limited the expression of the yield potential of cultivars, reducing the genotypic variability of responses to P levels.
650 $aGenotype
650 $aHarvest index
650 $aHarvesting
650 $aNodulation
650 $aColheita
650 $aFeijão
650 $aPhaseolus Vulgaris
653 $aBean
700 1 $aTEIXEIRA, M. G.
700 1 $aALMEIDA, D. L. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 35, n. 4, p. 809-817, abr. 2000.
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