1997
DOI: 10.1590/s0006-87051997000200007
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Bacillus Subtilis for the Control of Powdery Mildew on Cucumber and Zucchini Squash

Abstract: Application of concentrated metabolites of Bacillus subtilis - CMBS - (5,000 µg/mL) one and 24 h before or after inoculation of Sphaerotheca fuliginea (3 x 104 conidia/mL) reduced the number of lesions on cucumber leaves by 90-99%. The average number of lesions on control plants was 16.7 per leaf. A wettable powder product formulated with cells (10%) and metabolites (10%) of B. subtilis (WPBS), and CMBS sprayed on cucumber plants (1,000 µg/mL and 10,000 µg/mL) twice a week totally controlled powdery mildew. In… Show more

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Cited by 8 publications
(10 citation statements)
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“…One example is strain AP-3, isolated from the rhizosphere of rice and showing antagonistic activity to different fungi associated not only with rice, but also with peach tree, cucumber and zucchini squash (Bettiol & Kimati 1990;Tratch et al 1992;Bettiol et al 1994Bettiol et al , 1997. The good performance of AP-3 was confirmed in this paper against five soybean seed pathogenic fungi evaluated in vitro.…”
Section: Discussionsupporting
confidence: 61%
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“…One example is strain AP-3, isolated from the rhizosphere of rice and showing antagonistic activity to different fungi associated not only with rice, but also with peach tree, cucumber and zucchini squash (Bettiol & Kimati 1990;Tratch et al 1992;Bettiol et al 1994Bettiol et al , 1997. The good performance of AP-3 was confirmed in this paper against five soybean seed pathogenic fungi evaluated in vitro.…”
Section: Discussionsupporting
confidence: 61%
“…Table 4 shows the performance of the two B. subtilis strains in relation to the inhibitory activity against five fungal species. Strain AP-3, previously shown to have antagonistic activity against pathogenic fungi of rice (Bettiol & Kimati 1990), cucumber and zucchini squash (Bettiol et al 1997) was also effective against soybean seed fungi and a similar performance was achieved with strain PRBS-1.…”
Section: Phytohormones Produced By Strains Prbs-1 and Ab-3mentioning
confidence: 64%
“…Entre os mecanismos de antagonismo, a antibiose, possivelmente, é o que está mais relacionado aos efeitos observados no presente estudo. Substâncias com propriedades antimicrobianas produzidas durante o cultivo estariam presentes nos extratos dessas culturas (BETTIOL et al, 1997;CATTELAN, 1994;KUPPER et al, 2003) e exerceriam efeito antifúngico quando em contato com os esporos do C. gloeosporioides.…”
Section: Filtrados De Rizobactérias Com Ação Antifúngica In Vitrounclassified
“…Entre os fatores pelos quais certas rizobactérias favorecem o crescimento das plantas, tem-se o potencial de supressão de fitopatógenos por meio de diferentes processos, os quais podem envolver antibiose por produtos do metabolismo secundário (antibióticos) e a ativação de mecanismos de defesa da própria planta (CATTELAN & HARTEL, 2000). As rizobactérias do gênero Bacillus são promissoras no controle de diversos fitopatógenos e são conhecidas pela sua capacidade de produção de compostos antibióticos com ação antifúngica (BATISTA JÚNIOR et al, 2002;BETTIOL et al, 1997;KUPPER et al, 2003;MELO & VALARINI, 1995;). Freitas (1989) verificou que plântulas de café inoculadas com isolados de rizobactérias do gênero Pseudomonas foram beneficiadas, apresentando maior peso de matéria seca em relação àquelas não inoculadas.…”
Section: Introductionunclassified
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