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Biblioteca(s):  Embrapa Milho e Sorgo.
Data corrente:  25/03/2022
Data da última atualização:  20/03/2023
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  VASCONCELOS, M. J. V. de; FIGUEIREDO, J. E. F.; OLIVEIRA, M. F. de; SCHAFFERT, R. E.; RAGHOTHAMA, K. G.
Afiliação:  MARIA JOSE VILACA DE VASCONCELOS, CNPMS; JOSE EDSON FONTES FIGUEIREDO, CNPMS; MAURILIO FERNANDES DE OLIVEIRA, CNPMS; ROBERT EUGENE SCHAFFERT, CNPMS; KACHANDRA G. RAGHOTHAMA, Purdue University.
Título:  Plant phosphorus use efficiency in acid tropical soil.
Ano de publicação:  2022
Fonte/Imprenta:  Revista Brasileira de Milho e Sorgo, v. 21, e1259, 2022.
DOI:  https://doi.org/10.18512/rbms2022vol21e1259
Idioma:  Inglês
Conteúdo:  ABSTRACT - Phosphorus is an essential macronutrient for plant growth and development. However, phosphorus availability is low in many soils, and the plant?s ability to acquire phosphorus from the rhizosphere is critical in the acid soils of the Brazilian Cerrado. In addition, high levels of fixed phosphate (Pi) in many soils reduce the phosphorus availability to the plants. Thus, Pi deficiency is a significant concern for crop growth and high yields in tropical soils. The intra- and interspecific variations in plant growth under Pi-limiting conditions are complex traits controlled by many induced or suppressed genes, comprising an intricate epistatic regulatory network interacting within cells and the external environment. The microRNA genes (miRNAs), a class of regulators that induce, degrade or repress mRNA transcription and translation, are another critical aspect of this network. As a result, changes in morphology (growth and root architecture) and physiological (enzymes, organic acids, and anthocyanin) can be observed in plants under Pi stress. Furthermore, symbiotic associations with phosphatesolubilizing bacteria and mycorrhizal fungi increase the phosphorus availability to plants. Therefore, understanding the mechanisms involved in plant adaptation to phosphorus deficiency is critical for developing cultivars adapted to low phosphorus levels in the Brazilian Cerrado. This review addresses the molecular mechanisms controlling P-acquisition and P-use by plants and disc... Mostrar Tudo
Palavras-Chave:  Pi transporters; Pi-use efficiency; Transportador de fosfato.
Thesagro:  Eficiência Nutricional; Fósforo; Solo Ácido.
Thesaurus Nal:  Acid soils.
Categoria do assunto:  S Ciências Biológicas
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232945/1/Plant-phosphorus.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Milho e Sorgo (CNPMS)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPMS29791 - 1UPCAP - DD
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Biblioteca(s):  Embrapa Arroz e Feijão; Embrapa Soja.
Data corrente:  27/07/2017
Data da última atualização:  14/08/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  A - 2
Autoria:  GUIMARÃES, C. M.; STONE, L. F.; ZITO, R. K.
Afiliação:  CLEBER MORAIS GUIMARAES, CNPAF; LUIS FERNANDO STONE, CNPAF; ROBERTO KAZUHIKO ZITO, CNPSo.
Título:  Susceptibility of common bean and soybean to water stress evaluated at the sitis phenotyping platform.
Ano de publicação:  2017
Fonte/Imprenta:  Bioscience Journal, Uberlândia, v. 33, n. 4, p. 871-880, July/Aug. 2017.
ISSN:  1981-3163
Idioma:  Inglês
Conteúdo:  The great challenge of breeding programs focused on tolerance to water stress is the precise, in large scale, and automated phenotyping. Therefore, the objective of this study was to assess whether the controlled conditions of SITIS Automated Phenotyping Platform and the protocol used are suitable for discriminating cultivars of common bean and soybean for tolerance to this stress. Two experiments were carried out in randomized block design, in a split plot scheme, with four replications. The main plots had five water regimes, applied after flowering: daily replacement of 100 (control), 80, 60, 40, and 20% of water evapotranspired in control. The subplots consisted of two common bean cultivars (BRS Pontal and BRS Pérola) in the 1st experiment, and two soybean cultivars (MG/BR 46 Conquista and BR-16) in the 2nd one. In each species, the first cultivar is more tolerant to water stress, and the second one is more susceptible. It is possible to use the SITIS Platform and the proposed protocol to evaluate common bean and soybean cultivars for tolerance to water stress. The common bean cultivars evaluated were more sensitive to this stress than soybeans. The best water status of cultivars BRS Pontal and MG/BR 46 Conquista under water stress confirmed their greater tolerance.
Palavras-Chave:  Fenotipagem; Plataforma SITIS; Temperatura das folhas.
Thesagro:  Deficiência hídrica; Evapotranspiração; Feijão; Glycine max; Phaseolus vulgaris; Soja.
Thesaurus NAL:  Soybeans.
Categoria do assunto:  F Plantas e Produtos de Origem Vegetal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162125/1/CNPAF-2017-bj.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162147/1/871.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Arroz e Feijão (CNPAF)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPAF34798 - 1UPCAP - DD20172017
CNPSO37924 - 1UPCAP - DD
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