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Biblioteca(s):  Embrapa Amazônia Oriental.
Data corrente:  28/01/2016
Data da última atualização:  26/05/2022
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  MENEZES, C.; VOLLET-NETO, A.; MARSAIOLI, A. J.; ZAMPIERI, D.; FONTOURA, I. C.; LUCHESSI, A. D.; IMPERATRIZ-FONSECA, V. L.
Afiliação:  CRISTIANO MENEZES, CPATU / CNPMA / USP; Ayrton Vollet-Neto, USP; Anita Jocelyne Marsaioli, University of Campinas; Davila Zampieri, University of Campinas; Isabela Cardoso Fontoura, University of Campinas; Augusto Ducati Luchessi, University of Campinas; Vera Lucia Imperatriz-Fonseca, USP / Vale Institute of Technology.
Título:  A Brazilian social bee must cultivate fungus to survive.
Ano de publicação:  2015
Fonte/Imprenta:  Current Biology, v. 25, n. 21, p. 2851-2855, Nov. 2015.
DOI:  10.1016/j.cub.2015.09.028
Idioma:  Inglês
Conteúdo:  The nests of social insects provide suitable microenvironments for many microorganisms as they offer stable environmental conditions and a rich source of food [1, 2, 3 and 4]. Microorganisms in turn may provide several benefits to their hosts, such as nutrients and protection against pathogens [1, 4, 5 and 6]. Several examples of symbiosis between social insects and microorganisms have been found in ants and termites. These symbioses have driven the evolution of complex behaviors and nest structures associated with the culturing of the symbiotic microorganisms [5, 7 and 8]. However, while much is known about these relationships in many species of ants and termites, symbiotic relationships between microorganisms and social bees have been poorly explored [3, 4, 9 and 10]. Here, we report the first case of an obligatory relationship between the Brazilian stingless bee Scaptotrigona depilis and a fungus of the genus Monascus (Ascomycotina). Fungal mycelia growing on the provisioned food inside the brood cell are eaten by the larva. Larvae reared in vitro on sterilized larval food supplemented with fungal mycelia had a much higher survival rate (76%) compared to larvae reared under identical conditions but without fungal mycelia (8% survival). The fungus was found to originate from the material from which the brood cells are made. Since the bees recycle and transport this material between nests, fungus would be transferred to newly built cells and also to newly founded nests. Thi... Mostrar Tudo
Palavras-Chave:  Abelha sem ferrão; Meliponicultura.
Thesagro:  Fungo; Simbiose.
Categoria do assunto:  O Insetos e Entomologia
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Amazônia Oriental (CPATU)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CPATU51997 - 1UPCAP - DD
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Biblioteca(s):  Embrapa Café.
Data corrente:  25/11/2022
Data da última atualização:  11/01/2023
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  B - 1
Autoria:  VILELA, A. L. O.; ROSA, S. D. V. F. da; COELHO, S. V. B.; PEREIRA, C. C.; SOUZA, A. C. de; RIBEIRO, F. A. S.
Afiliação:  ANA LUIZA OLIVEIRA VILELA, UNIVERSIDADE FEDERAL DE LAVRAS; STTELA DELLYZETE VEIGA F DA ROSA, CNPCa; STEFÂNIA VILAS BOAS COELHO, UNIVERSIDADE FEDERAL DE LAVRAS; CRISTIANE CARVALHO PEREIRA, UNIVERSIDADE FEDERAL DE LAVRAS; ANA CRISTINA DE SOUZA, UNIVERSIDADE FEDERAL DE LAVRAS; FERNANDO AUGUSTO SALES RIBEIRO, UNIVERSIDADE FEDERAL DE LAVRAS.
Título:  Acclimatization of coffee seedlings obtained from zygotic embryos of aged seeds.
Ano de publicação:  2022
Fonte/Imprenta:  Australian Journal of Crop Science, v. 16, n. 9, p.112-1134, 2022.
Idioma:  Inglês
Conteúdo:  Coffee seeds rapidly lose viability during storage, which hinders the development of vigorous seedlings for crop establishment. There are reports that seed endosperm is more sensitive to deterioration than embryos, which can be excised and cultivated in vitro. However, a substantial number of plants grown in vitro do not survive during transfer to a greenhouse or field environment. The objective of this study was to evaluate the acclimatization of coffee seedlings of cultivar Catuaí Amarelo IAC 62, developed from zygotic embryos obtained from aged seeds in different substrates and environments, for the production of well-developed seedlings suitable for planting. For this purpose, seedlings were obtained from the in vitro cultivation of embryos obtained from seeds of two quality levels: freshly harvested seeds and artificially aged seeds. Zygotic embryos were extracted from the seeds and cultivated in MS medium. At 60 days, the percentages of normal and abnormal seedlings and dead seeds were evaluated. The good-quality seedlings grown in vitro for 60 days were transplanted into two different substrates (Tropstrato and coconut fiber) and acclimatized in two environments (growth room and greenhouse with a misting system). The plants were evaluated for height, stem diameter, number of leaves, chlorophyll content, and growth rate. The greenhouse environment was better for seedling growth, possibly due to its higher sunlight and temperature. The best substrate was coconut fiber, ... Mostrar Tudo
Palavras-Chave:  Zygotic embryos.
Thesaurus NAL:  Coffea arabica var. arabica; Enzyme substrates; Greenhouses; In vitro culture; Seedlings; Seeds.
Categoria do assunto:  --
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150877/1/Acclimatization-of-coffee-seedlings-obtained.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148763/1/Acclimatization-of-coffee-seedlings-obtained.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Café (CNPCa)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPCa - SAPC1641 - 1UPCAP - DD
CNPCa - SAPC1678 - 1UPCAP - DD
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