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Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
25/01/2016 |
Data da última atualização: |
25/01/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CORREA, E. B.; SUTTON, J. C.; BETTIOL, W. |
Afiliação: |
ELIDA BARBOSA CORREA, UFPB; JOHN CLIFFORD SUTTON, University of Guelph. |
Título: |
Formulation of Pseudomonas chlororaphis strains for improved shelf life. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Biological Control, Orlando, v. 80, p. 50-55, 2015. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Formulations of Pseudomonas strains with long-term shelf life are needed for commercial use in biological disease control and growth promotion in crops. In the present work Pseudomonas chlororaphis (Pc) 63-28 formulated with coconut fiber [moisture content (MC) of 80%], talc (MC 8%) or peat (MC 40%), with or without the addition of carboxymethylcellulose or xanthan gum, and formulations of Pc 63-28 and P. chlororaphis TX-1 in coconut fiber with water contents (v:v) of 75%, 45%, and 25%, were evaluated in terms of shelf life and cell viability. The shelf life of Pc 63-28 was longer when formulated in coconut fibre with a MC was 80% than in the other formulations and longer at 3 +/- 1 degrees C compared to 22 +/- 1 degrees C. Densities of viable Pc 63-28 cells in coconut fiber stored at 3 +/- 1 degrees C did not decline significantly during 224 days when the MC was 80% and within 120 days at 75% MC. Densities of Pc TX-1 in coconut fiber of 75% MC did not decline within 60 days at 3 +/- 1 degrees C. P. chlororaphis 63-28 survived longer in deionized water and buffer than in canola oil. Cells of Pc 63-28 cells formulated in coconut fibre of 80% MC after storage for 140 days at 3 +/- 1 degrees C in coconut fiber improved hydroponic growth of hydroponic lettuce and better than cells freshly recovered from culture. We conclude that coconut fiber is a carrier of superior performance in maintaining shelf life of Pseudomonas strains. The observed shelf life would be sufficient for practical use of Pseudomonas strains as tools for disease control and growth promotion in crops. (C) 2014 Elsevier Inc. All rights reserved. MenosAbstract: Formulations of Pseudomonas strains with long-term shelf life are needed for commercial use in biological disease control and growth promotion in crops. In the present work Pseudomonas chlororaphis (Pc) 63-28 formulated with coconut fiber [moisture content (MC) of 80%], talc (MC 8%) or peat (MC 40%), with or without the addition of carboxymethylcellulose or xanthan gum, and formulations of Pc 63-28 and P. chlororaphis TX-1 in coconut fiber with water contents (v:v) of 75%, 45%, and 25%, were evaluated in terms of shelf life and cell viability. The shelf life of Pc 63-28 was longer when formulated in coconut fibre with a MC was 80% than in the other formulations and longer at 3 +/- 1 degrees C compared to 22 +/- 1 degrees C. Densities of viable Pc 63-28 cells in coconut fiber stored at 3 +/- 1 degrees C did not decline significantly during 224 days when the MC was 80% and within 120 days at 75% MC. Densities of Pc TX-1 in coconut fiber of 75% MC did not decline within 60 days at 3 +/- 1 degrees C. P. chlororaphis 63-28 survived longer in deionized water and buffer than in canola oil. Cells of Pc 63-28 cells formulated in coconut fibre of 80% MC after storage for 140 days at 3 +/- 1 degrees C in coconut fiber improved hydroponic growth of hydroponic lettuce and better than cells freshly recovered from culture. We conclude that coconut fiber is a carrier of superior performance in maintaining shelf life of Pseudomonas strains. The observed shelf life would be sufficie... Mostrar Tudo |
Palavras-Chave: |
Bacterial formulation; Bioagents; Coconut fiber. |
Thesagro: |
Alface; Coco; Controle biológico; Fibra vegetal; Formulação; Lactuca sativa; Regulador de crescimento; Turfa. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02401naa a2200277 a 4500 001 2034936 005 2016-01-25 008 2015 bl uuuu u00u1 u #d 100 1 $aCORREA, E. B. 245 $aFormulation of Pseudomonas chlororaphis strains for improved shelf life.$h[electronic resource] 260 $c2015 520 $aAbstract: Formulations of Pseudomonas strains with long-term shelf life are needed for commercial use in biological disease control and growth promotion in crops. In the present work Pseudomonas chlororaphis (Pc) 63-28 formulated with coconut fiber [moisture content (MC) of 80%], talc (MC 8%) or peat (MC 40%), with or without the addition of carboxymethylcellulose or xanthan gum, and formulations of Pc 63-28 and P. chlororaphis TX-1 in coconut fiber with water contents (v:v) of 75%, 45%, and 25%, were evaluated in terms of shelf life and cell viability. The shelf life of Pc 63-28 was longer when formulated in coconut fibre with a MC was 80% than in the other formulations and longer at 3 +/- 1 degrees C compared to 22 +/- 1 degrees C. Densities of viable Pc 63-28 cells in coconut fiber stored at 3 +/- 1 degrees C did not decline significantly during 224 days when the MC was 80% and within 120 days at 75% MC. Densities of Pc TX-1 in coconut fiber of 75% MC did not decline within 60 days at 3 +/- 1 degrees C. P. chlororaphis 63-28 survived longer in deionized water and buffer than in canola oil. Cells of Pc 63-28 cells formulated in coconut fibre of 80% MC after storage for 140 days at 3 +/- 1 degrees C in coconut fiber improved hydroponic growth of hydroponic lettuce and better than cells freshly recovered from culture. We conclude that coconut fiber is a carrier of superior performance in maintaining shelf life of Pseudomonas strains. The observed shelf life would be sufficient for practical use of Pseudomonas strains as tools for disease control and growth promotion in crops. (C) 2014 Elsevier Inc. All rights reserved. 650 $aAlface 650 $aCoco 650 $aControle biológico 650 $aFibra vegetal 650 $aFormulação 650 $aLactuca sativa 650 $aRegulador de crescimento 650 $aTurfa 653 $aBacterial formulation 653 $aBioagents 653 $aCoconut fiber 700 1 $aSUTTON, J. C. 700 1 $aBETTIOL, W. 773 $tBiological Control, Orlando$gv. 80, p. 50-55, 2015.
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1. | | MARINHO, E. R. do A.; MANDÚ, V.; CAMPO, R. P.; COSTA, L. B. de L. C. da; BORSATO, A. V.; DONADON, J. R. Compostos bioativos em amêndoas in natura de baru (Dipteryx alata) durante o armazenamento. SIMPÓSIO DE FRUTOS NATIVOS E EXÓTICOS, 2., 2017, Campo Grande. Anais... Campo Grande: Universidade Federal de Mato Grosso do Sul, 2017. p. 15-17. Sinatex.Tipo: Artigo em Anais de Congresso |
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2. | | SILVA, V. M. da; MARINHO, E. R. do A.; GIMARÃES, R. de C. A.; CAMPO, R. P.; BORSATO, A. V.; DONADON, J. R. Protocolo para determinação de umidade em frutos de bocaiuva. SIMPÓSIO DE FRUTOS NATIVOS E EXÓTICOS, 2., 2017, Campo Grande. Anais... Campo Grande: Universidade Federal de Mato Grosso do Sul, 2017. p. 81-83. Sinatex.Tipo: Artigo em Anais de Congresso |
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