Application of rhizobacteria for induction of systemic resistance to bacterial blight of cotton caused by Xanthomonas campestris pv. malvacearum using fluorescent pseudomonads of rhizosphere

• Autorzy: Fallahzadeh V , Ahmadzadeh M. , Marefat A. , Ghazanfary K.

Warianty tytułu

PL

Stosowanie bakterii rizosfery w celu indukowania systemicznej odpornosci na bakteryjna zgorzel bawelny wywolywana przez Xanthomonas campestris pv. malvacearum przy uzyciu fluoryzujacych Pseudomonas

• Języki publikacji: EN

Abstrakty

EN

The ability of fluorescent pseudomonads of cotton rhizosphere of induction of systemic resistance (ISR) against bacterial blight of cotton was investigated. Of the 21 isolates tested, 19 were observed to increase the resistance of plants. This was demonstrated by a lower percentage of infected leaf area. On the basis of growth promotion and ISR induction ability, isolates 148, 35Q, 16Q and 113 were selected for further investigations. All isolates increased the resistance of plants, and per cent of infected area on leaves of these treatments were lower than those control of plants. Levels of peroxidase (PO) and phenylalanine ammonia lyase (PAL) activity in the leaves of bacterized plants with selected isolates were similar to that in control plants, but after inoculation of leaves with the pathogen, the amount of these enzymes increased in bacterized plants to high levels. The increase of enzyme activity in control plants was low after inoculation.

PL

Badano zdolność fluoryzujących bakterii Pseudomonas z rizosfery bawełny do indukowania systemicznej odporności na zgorzel bawełny wywoływaną przez Xanthomonas campestris pv. malvacearum. Z 21 testowanych izolatów Pseudomonas 19 przyczyniło się do wzrostu odporności roślin. To wyrażało się niższym procentem porażenia powierzchni liści. Na podstawie stymulowania wzrostu roślin i indukowania odporności izobaty 148, 350, 16Q i 113 zostały wybrane do dalszych badań. Wszystkie te izobaty powodowały zwiększenie odporności roślin, a procent porażonej powierzchni liści był niższy w porównaniu do roślin kontrolnych. Poziom aktywności peroksydazy (PO) i amonowej liazy fenyloalaniny (PAL) w liściach roślin traktowanych wybranymi izolatami bakterii Pseudomonas był podobny do poziomu w kontroli, ale po inokulacji liści patogenem ilość tych enzymów w roślinach traktowanych bakteriami bardzo wzrosła. Wzrost aktywności enzymów w roślinach kontrolnych był niski po inokulacji.

Słowa kluczowe

PL

fluorescent pseudomonad; pseudomonad; induced systemic resistance; rhizosphere; Xanthomonas campestris pv.malvacearum; cotton; peroxidase; phenylalanine ammonia lyase; rhizobacterial strain; application; bacterial blight disease; plant disease; plant protection

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2009
• Tom: 49
• Numer: 4
• Strony: 416-420
• Opis fizyczny: p.416-420,fig.,ref.

Twórcy

autor

Fallahzadeh V

• Physiology and Biotechnology Research Institute, University of Zanjan, Zanjan, Iran

autor

Ahmadzadeh M.

autor

Marefat A.

autor

Ghazanfary K.

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