Seed Bacterization with Bacillus subtilis AF 1 Increases Phenylalanine Ammonia‐lyase and Reduces the Incidence of Fusarial Wilt in Pigeonpea

Podile, Appa Rao; Laxmi, V.

doi:10.1111/j.1439-0434.1998.tb04687.x

Cited by 87 publications

(45 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Este efeito inibitório pode estar relacionado com a produção de quitinases e de outras enzimas que podem ter ação contra a parede celular fúngica, já que algumas bactérias antagonistas de fungos fitopatogênicos podem produzir quitinases (Mavingui & Heulin, 1994). Também foi observado que o Bt possui atividade quitinolítica (Barbosa-Corona et al, 1999;Rojas-Avelizapa et al, 1999), porém, estes autores estavam buscando fatores de patogenicidade contra insetos, e não, contra fungos fitopatogênicos.…”

Section: Fungistatic Effect Of Bacillus Thuringiensis and Of Other Baunclassified

See 1 more Smart Citation

Efeito fungistático de Bacillus thuringiensis e de outras bactérias sobre alguns fungos fitopatogênicos

Batista

Albino

Martines

et al. 2002

Pesq. agropec. bras.

View full text Add to dashboard Cite

Quatro isolados bacterianos da rizosfera de Drosera villosa var. villosa (B1, B2, B3, B4) e dois isolados de Bacillus thuringiensis (B5 e B6), sendo B6 produtor da toxina bioinseticida Cry1Ab, foram avaliados quanto à capacidade de inibir os fungos fitopatogênicos Fusarium solani f. sp. phaseoli, Fusarium solani f. sp. glycines, Fusarium oxysporum e Colletotrichum sp. A cepa mais efetiva foi B1 que inibiu o crescimento dos quatro fungos até o 26º dia. B. thuringiensis inibiu o crescimento de três destes, o que indica que possui atividade antifúngica e abre um novo campo de estudo para a utilização do B. thuringiensis.

show abstract

Section: Fungistatic Effect Of Bacillus Thuringiensis and Of Other Baunclassified

“…Inúmeras espécies deste gênero já demonstraram atividade antifúngica (Kim et al, 1997;Podile & Laxmi, 1998) …”

Section: Fungistatic Effect Of Bacillus Thuringiensis and Of Other Baunclassified

Efeito fungistático de Bacillus thuringiensis e de outras bactérias sobre alguns fungos fitopatogênicos

Batista

Albino

Martines

et al. 2002

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…A study has indicated that total phenol contents (TPCs) were significantly higher in resistant varieties compared to the susceptible ones to Alternaria triticina (Mishra et al, 2011). Phenylalanine ammonialyase (PAL) being the first step in the phenylpropanoid biosynthesis pathway, also plays an important role in biosynthesis of the different families of phenolics (coumarins, flavonoids, lignins), phenolic derivatives and its activity being correlated with the level of synthesis of the phenolic compound (Podile, Laxmi, 1998). The induction of PAL activity preceding an increase in the Biochemical and histochemical parameters associated with slow blighting of spot blotch (Bipolaris sorokiniana (Sacc.…”

Section: Introductionmentioning

confidence: 99%

Biochemical and histochemical parameters associated with slow blighting of spot blotch (Bipolaris sorokiniana (Sacc.) Shoem.) in wheat (Triticum spp.)

Eisa

Chand

Joshi

2013

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

Spot blotch caused by Bipolaris sorokiniana is a destructive disease of wheat (Triticum spp.) in warm and humid wheat growing regions of the world. Area under the disease progress curve (AUDPC) in field experiment was used to find out the role of total phenol content (TPC), phenylalanine ammonia-lyase (PAL) activity and lignin deposition in the development of slow blight. Ten recombinant inbred lines (RILs) of spring wheat obtained from the cross between the susceptible parent 'Sonalika' and the resistant parent 'Yangmai 6' along with their parental genotypes were scored for disease severity (DS), AUDPC and lesion size in a field experiment on spot blotch. These lines were also evaluated for TPC, PAL and lignin deposition. The minimum DS, AUDPC and lesion size were recorded in the resistant parent 'Yangmai 6' (13%, 116.04 and 0.23 cm 2 , respectively) and RILs (18%, 113.3 and 0.27 cm 2 , respectively in RIL83 and RIL89) which associated with an elevated level of phenol content (395 mg g -1 fresh weight (wt) at 48 hours after inoculation (hai), PAL (928.41 μmoles cinnamic acid (cna) mg -1 fresh wt) and higher quantity of lignin (84%). While DS, AUDPC and lesion size were comparatively higher in the susceptible parent 'Sonalika' as well as susceptible RILs (100%, 938.27 and 3.43 cm 2 , respectively). Mean TPC (133.5 mg g -1 fresh wt 24 hai, respectively), PAL (248.8 μmoles cna mg -1 fresh wt) and lignin (10%) were significantly lower in the susceptible genotype 'Sonalika' and suscptible RILs. The study indicated that enhanced level of TPC, PAL and higher lignin deposition led to the development of slow blighting of spot blotch in terms of lower AUDPC and smaller lesion size in resistant RILs of wheat.

show abstract

“…PAL activity was significantly higher for the UFV 252 and UFV 592 treatments at 0 dai, for the UFV 252, UFV 592 and UFV592 treatments at 2 dai and only for the UFV 252 treatment at 7 dai compared to the control treatment (Figure 4a). PAL is important for phenolic compound synthesis in the phenylpropanoid pathway, and also plays a crucial role in lignin and flavonoid biosynthesis (Podile and Laxmi, 1998). For at least one evaluation time, PAL activity was higher for the plants treated with the antagonists UFV 618, UFV 592 and UFV 252.…”

Section: F Valuesmentioning

confidence: 98%

“…The induced resistance triggered by biological and chemicals inducers is due to an increase in the activities of several enzymes (Shanmugam and Kanoujia, 2011;Van Loon, 2007), such as the lipoxygenases, which contribute to the production of jasmonic acid during lipid peroxidation in the plasma membrane (Schaller and Stintzi, 2009), peroxidases and polyphenoloxidases, which together mediate lignin production (Campbell and Sederoff, 1996), and phenylalanine ammonia-lyases,which participate in the biosynthesis of phenolic compounds in the phenylpropanoid pathway (Podile and Laxmi 1998). The hydrolytic enzymes chitinases and β-1,3-glucanases degrade fungal cell walls, and the released oligosaccharides elicit defense responses against the pathogen attack (Roberts and Selitrennikoff, 1988).…”

Section: Introductionmentioning

confidence: 99%

Rhizobacteria induces resistance against Fusarium wilt of tomato by increasing the activity of defense enzymes

et al. 2014

View full text Add to dashboard Cite

Fusarium wilt, caused by Fusarium oxysporum f.sp. lycopersici (Fol), is one of the most important diseases that affect tomato yield worldwide. This study investigated the potential of three antagonists, Streptomyces setonii (UFV 618), Bacillus cereus (UFV 592) and Serratia marcescens (UFV 252), and as positive control the hormone jasmonic acid (JA), to reduce Fusarium wilt symptoms and to potentiate the defense enzymes in the stem tissues of tomato plants infected by Fol. The seeds were microbiolized with each antagonist, and the soil was also drenched with them. The plants were sprayed with JA 48 h before Fol inoculation. The area under the Fusarium wilt index progress curve was reduced by 54, 48, 47 and 45% for the UFV 618, JA, UFV 592 and UFV 252 treatments, respectively. The three antagonists, and even the JA spray, efficiently reduced the Fusarium wilt symptoms on the tomato plant stems, which can be explained by the lower malondialdehyde concentration (an indication of oxidative damage to lipids in the plasma membranes) and the greater activities of peroxidases, polyphenoloxidases, glucanases, chitinases, phenylalanine ammonia-lyases and lipoxygenases, which are commonly involved in host resistance against fungal diseases. These results present a novel alternative that can be used in the integrated management of Fusarium wilt on tomatoes.Key words: Fusarium oxysporum f.sp. lycopersici, Solanum lycopersicum, biological control, host defense mechanisms, induced resistance, vascular pathogen.Rizobactérias induzem resistência contra a murcha-de-fusário do tomateiro pelo aumento das atividades de enzimas de defesa Resumo A murcha-de-fusário, causada por Fusarium oxysporum f.sp. lycopersici (Fol), é uma das mais importantes doenças que afetam a produção de tomate no mundo. Este estudo investigou o potencial de três antagonistas, Streptomyces setonii (UFV 618), Bacillus cereus (UFV 592) e Serratia marcescens (UFV 252), e como controle positivo foi utilizado o hormônio ácido jasmônico (AJ), na redução dos sintomas da murcha-de-fusário e potencialização das enzimas de defesa nos tecidos do caule de plantas de tomateiro infectadas por Fol. Sementes foram microbiolizadas com cada antagonista e o solo também foi encharcado com eles. As plantas foram pulverizadas com AJ 48 horas antes da inoculação Fol. A área abaixo da curva do progresso do índice da murcha-de-fusário (AACPIMF) foi reduzida em 54%, 48%, 47% e 45% para os tratamentos UFV 618, AJ, UFV 592 e UFV 252, respectivamente. Os três antagonistas, e até mesmo a pulverização AJ, foram eficientes na redução dos sintomas da murchade-fusário em caules de tomateiro, o que pode ser explicado pela menor concentração de aldeído malônico (uma indicação de danos oxidativos em lípideos nas membranas plasmáticas) e maior atividade de peroxidases, polifenoloxidases, glucanases, quitinases, fenilalanina amônia liases e lipoxigenases, comumente envolvidas na resistência do hospedeiro a doenças fúngicas. Esses resultados apresentam uma nova alternativa que pode ser usada...

show abstract

Seed Bacterization with Bacillus subtilis AF 1 Increases Phenylalanine Ammonia‐lyase and Reduces the Incidence of Fusarial Wilt in Pigeonpea

Abstract: Cell free culture filtrate of a biocontrol PGPR strain of Bacillus subtilis showed a concentration-dependent growth and conidiation inhibition of Fusarium udum.

Cited by 87 publications

References 27 publications

Efeito fungistático de Bacillus thuringiensis e de outras bactérias sobre alguns fungos fitopatogênicos

Efeito fungistático de Bacillus thuringiensis e de outras bactérias sobre alguns fungos fitopatogênicos

Biochemical and histochemical parameters associated with slow blighting of spot blotch (Bipolaris sorokiniana (Sacc.) Shoem.) in wheat (Triticum spp.)

Rhizobacteria induces resistance against Fusarium wilt of tomato by increasing the activity of defense enzymes

Contact Info

Product

Resources

About