Data/hora: 20/09/2024 16:49:48

Biblioteca(s): 	Embrapa Acre.	
Data corrente: 	10/11/2020	
Data da última atualização: 	28/06/2021	
Autoria: 	VALE, S. M. L. S. do; SIVIERO, A.; LESSA, L. S.; MATTAR, E. P. L.; VALE, P. A. A. do.	
Afiliação: 	SONIA MARIA LIMA SANTOS DO VALE, Federal Institute of Education, Science and Technology of Acre; AMAURI SIVIERO, CPAF-AC; LAURO SARAIVA LESSA, CPAF-AC; EDUARDO PACCA LUNA MATTAR, Federal University of Acre; PAULO ARTHUR ALMEIDA DO VALE, Technology Foundation of the State of Acre.	
Título: 	Biotechnological potential of endophytic bacteria of bamboo Guadua sp. for promotion of growth of micropropagated yam plants (Dioscorea rotundata Poir).	
Ano de publicação: 	2020	
Fonte/Imprenta: 	AIMS Agriculture and Food, v. 5, n. 4, p. 850-867, 2020.	
ISSN: 	2471-2086	
DOI: 	10.3934/agrfood.2020.4.850	
Idioma: 	Inglês	
Conteúdo: 	Endophytic microorganisms have a wide genetic diversity, being very useful for agriculture, for producing growth regulators and making nutrients available to plants. In this context, this research aimed to isolate and characterize endophytic bacteria from bamboo Guadua sp., in order to evaluate the use of these microorganisms in promoting plant growth in yam plants (Dioscorea rotundata Poir). For this, the macromorphological characteristics of bacterial colonies were studied: shape, borders, consistency, color, brightness. Micromorphological analysis was performed using the Gram method. Biological tests of phosphate solubilization, biological nitrogen fixation and indole acetic acid production were carried out, where the bacteria with the best results were selected to assess the potential to promote the growth of white yam plants. The growth experiment consisted of four treatments: a control (without inoculation) and three treatments with endophytic bacteria, inoculated in pre-acclimated yam plants. Each treatment consisted of 6 repetitions with 5 plants per plot, totaling 30 plants per treatment. The colonies showed similar patterns of morphological characteristics for the three collection sites, with characteristics such as 'circular' shape, 'entire' border, 'creamy' consistency, 'brown' color and 'bright' shine. We observed that 39.1% of the bacteria were able to perform phosphate solubilization, 61.9% performed atmospheric nitrogen fixation and 26.9% performed indole acetic acid synthesis. The results showed that the endophytic bacteria isolated from Guadua sp. did not promote dry matter accumulation of white yam plants after 45 days of cultivation in a nursery.	
Palavras-Chave: 	Acre; Amazonia Occidental; Amazônia Ocidental; Bactéria endofítica; Bactérias endofíticas; Bambúes; Características macromorfológicas; Cultivos de viveros; Endophytic bacteria; Lago do Silêncio; Macromorphological traits; Parque Zoobotânico; Reguladores del crecimiento; Rendimiento de los cultivos; Rio Branco (AC); Sena Madureira (AC); Western Amazon; White guinea yam.	
Thesagro: 	Bambu; Inhame; Morfologia Vegetal; Nutrição Vegetal; Regulador de Crescimento; Rendimento; Viveiro.	
Thesaurus Nal: 	Bamboos; Crop yield; Dioscorea rotundata; Growth regulators; Guadua; Nursery crops; Plant growth substances; Plant morphology; Plant nutrition.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/221834/1/27110.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/217637/1/27066.pdf	
Registro original: 	Embrapa Acre (CPAF-AC)	
Exemplares: 	CPAF-AC - (27066-1) - UPC - AP - DD -  -  -  - DIS
CPAF-AC - (27110-1) - UPC - AP - DD -  -  -  - DIS