Bioherbicide production by Diaporthe sp. isolated from the Brazilian Pampa biome

被引：26

作者：

Castro de Souza, Angelica Rossana ^{[1
]}

Baldoni, Daiana Bortoluzzi ^{[2
]}

Lima, Jessica ^{[2
]}

Porto, Vitoria ^{[1
]}

Marcuz, Camila ^{[1
]}

Ferraz, Rafael Camargo ^{[4
]}

Kuhn, Raquel C. ^{[1
]}

Jacques, Rodrigo J. S. ^{[2
]}

Guedes, Jerson V. C. ^{[3
]}

Mazutti, Marcio A. ^{[1
]}

机构：

[1] Univ Fed Santa Maria, Dept Chem Engn, Av Roraima 1000, BR-97105900 Santa Maria, RS, Brazil

[2] Univ Fed Santa Maria, Dept Soil Sci, BR-97105900 Santa Maria, RS, Brazil

[3] Univ Fed Santa Maria, Dept Plant Protect, BR-97105900 Santa Maria, RS, Brazil

[4] Fed Univ Pampa, St Ana Do Livramento, RS, Brazil

来源：

BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY | 2015年 / 4卷 / 04期

关键词：

Biodiversity; Pampa biome; Bioherbicide; Diaporthe;

D O I：

10.1016/j.bcab.2015.09.005

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

In this study was presented a rational strategy to scale-up a wild fungal strain from the Brazilian Pampa biome to produce compounds with herbicidal activity in pre-emergence. It was defined the medium composition for the growth and production of bioherbicide in shaken flasks using sucrose corn steep liquor as substrate. In a second step, the process variables in a stirred-tank bioreactor were assessed. Maximum biomass production in shaken flasks was 23.87 g L-1 (41% higher than synthetic media) and in the bioreator 27.8 g L-1. The Diaporthe sp. growth in bioreactor was negatively affected by agitation higher than 40 rpm. The bioherbicide efficiency rate reached 100%, since none seed germinated after the application of fermented broth. The Brazilian Pampa biome could be an effective way to obtain high value products from the biodiversity. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：575 / 578

页数：4

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