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Biblioteca(s):  Embrapa Soja.
Data corrente:  07/02/2017
Data da última atualização:  19/06/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  TEIXEIRA, R. N.; LIGTERINK, W.; FRANÇA-NETO, J. de B.; HILHORST, H. W. M.; SILVA, E. A. A. da.
Afiliação:  RENAKE N. TEIXEIRA, UNESP Botucatu - Wageningen University; WILCO LIGTERINK, Wageningen University; JOSE DE BARROS FRANCA NETO, CNPSO; HENK W. M. HILHORST, Wageningen University; EDVALDO A. A. da SILVA, UNESP Botucatu.
Título:  Gene expression profiling of the green seed problem in soybean.
Ano de publicação:  2016
Fonte/Imprenta:  BMC Plant Biology, v. 16, n. 37, 2016.
Páginas:  15 p.
ISSN:  1471-2229
DOI:  10.1186/s12870-016-0729-0
Idioma:  Inglês
Conteúdo:  Due to the climate change of the past few decades, some agricultural areas in the world are now experiencing new climatic extremes. For soybean, high temperatures and drought stress can potentially lead to the ?green seed problem ? , which is characterized by chlorophyll retention in mature seeds and is associated with lower oil and seed quality, thus negatively impacting the production of soybean seeds. Here we show that heat and drought stress result in a ?mild ?stay-green phenotype and impaired expression of the STAY-GREEN 1 and STAY-GREEN 2 (D1, D2), PHEOPHORBIDASE 2 (PPH2) and NON-YELLOW COLORING 1 (NYC1_1) genes in soybean seeds of a susceptible soybean cultivar. We suggest that the higher expression of these genes in fully mature seeds of a tolerant cultivar allows these seeds to cope with stressful conditions and complete chlorophyll degradation. The gene expression results obtained in this study represent a significant advance in understanding chlorophyll retention in mature soybean seeds produced under stressful conditions. This will open new research possibilities towards finding molecular markers for breeding programs to produce cultivars which are less susceptible to chlorophyll retention under the hot and dry climate conditions which are increasingly common in the largest soybean production areas of the world.
Thesagro:  Qualidade; Semente; Soja.
Thesaurus Nal:  Seed quality; Soybeans.
Categoria do assunto:  F Plantas e Produtos de Origem Vegetal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154844/1/Gene-expression....pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Soja (CNPSO)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPSO37179 - 1UPCAP - DD
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Biblioteca(s):  Embrapa Soja.
Data corrente:  12/12/2016
Data da última atualização:  28/11/2017
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  A - 1
Autoria:  SILVA, D. M. da; BUENO, A. de F.; ANDRADE, K.; STECCA, C. dos S.; NEVES, P. M. O. J.; OLIVEIRA, M. C. N. de.
Afiliação:  DÉBORA MELLO DA SILVA, IAPAR; ADENEY DE FREITAS BUENO, CNPSO; KARINE ANDRADE, UEL; CRISTIANE DOS SANTOS STECCA, UEL; PEDRO MANUEL OLIVEIRA JANEIRO NEVES, UEL; MARIA CRISTINA NEVES DE OLIVEIRA, CNPSO.
Título:  Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources.
Ano de publicação:  2017
Fonte/Imprenta:  Scientia Agricola, Piracicaba, v. 74, n. 1, p. 18-31, Jan./Feb. 2017.
DOI:  10.1590/1678-992x-2015-0160
Idioma:  Inglês
Conteúdo:  We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves. An artificial diet was used as the control. Duration of pre-pupal, pupal, and larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition preferences, and nutritional quality of different hosts were evaluated. Insects fed on wheat showed the shortest larva-adult period. The insects fed on cotton and soybean had longer larval development cycles and pupae of lower weight. Feeding preference was evident for third instar larvae and did not differ between wheat, oat, maize, and soybean, which were the preferred hosts. Moths oviposited to a greater extent on the upper canopy of wheat than that of other plants in both the no-choice and free-choice tests. Treatments influenced insect growth, food consumption, and digestion when nutritional variables were analyzed. Thus, grasses were better hosts for S. frugiperda development. Cotton was the least preferred food, followed by soybean. The present study can improve our understanding of S. frugiperda in these different crops and help in developing management strategies. Even though S. frugiperda is considered to be polyphagous, this pest is closely associated with grasses (maize, wheat, oat) and has lower potential as a soybean or cotton feeder. Howerver, S. frugiperda food intake regulation appears to be triggered by a comple... Mostrar Tudo
Palavras-Chave:  Lagarta do cartucho.
Thesagro:  Entomologia.
Thesaurus NAL:  Crop entomology; Feeding behavior.
Categoria do assunto:  O Insetos e Entomologia
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151582/1/0103-9016-sa-74-01-0018.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Soja (CNPSO)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPSO37078 - 1UPCAP - DD
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