Bacillus vallismortis Strain EXTN-1 Mediated Systemic Resistance against Potato virus Y and X in the Field

Efficacy of plant growth promoting rhizobacteria(PGPR) Bacillus vallismortis strain EXTN-1 has been proved in eliciting induced systemic resistance(ISR) in several crops. The present paper described the beneficial effects of EXTN-1 in potato as increase in yield and chlorophyll content, and plant protection against Potato Virus Y and X(PVY & PVX). EXTN-1 induced systemic resistance to the plants resulting in significant disease suppression in the field. Also the plants under treatment with EXTN-1 had higher chlorophyll content. The bacterized plants had significantly higher yields over the untreated control plants. The strain induced activation of defense genes, PR-1a and PDF 1.2 in transgenic tobacco model, which indicated the possible role of both SA, and JA pathways in EXTN-1 mediated plant protection against crop diseases.

• Publication year

  2006

• Venue

  Plant Pathology Journal

• Publication date

  2006-12-01

• Fields of study

  Agricultural and Food Sciences, Biology

• Identifiers
  DOI 10.5423/PPJ.2006.22.4.360
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• EXTN-1 activated PR-1a and PDF 1.2 in transgenic tobacco, consistent with salicylic acid and jasmonic acid pathway involvement.

  Confidence 0.87

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• Bacterized potato plants produced higher yields than untreated controls.

  Confidence 0.93

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• Plants treated with EXTN-1 showed higher chlorophyll content than untreated controls.

  Confidence 0.94

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• EXTN-1 mediated induced systemic resistance that suppressed Potato virus Y and X in field-grown potato.

  Confidence 0.96

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review

• bacillus vallismortis strain extn-1

  microorganism, rhizobacterium

  A plant growth-promoting rhizobacterial strain used as the bacterial treatment in the potato field experiments.

  Aliases: EXTN-1, Bacillus vallismortis EXTN-1

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• chlorophyll content

  phenotype, measurement

  The measured chlorophyll level in treated potato plants, used as a plant vigor indicator.

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• crop yield

  outcome, agronomic trait

  The potato harvest output compared between bacterized and untreated plants.

  Aliases: yield

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• induced systemic resistance

  plant defense response

  A plant defense state triggered by the bacterization treatment and assessed as disease suppression.

  Aliases: ISR

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• jasmonic acid pathway

  signaling pathway

  A plant immune signaling pathway considered in the interpretation of defense-gene activation.

  Aliases: JA pathway

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• potato virus y and x

  pathogen, virus

  The potato-infecting viral pathogens targeted in the field protection assays.

  Aliases: PVY, PVX

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• pr-1a and pdf 1.2

  gene, marker

  Defense-related marker genes monitored in transgenic tobacco to probe EXTN-1-induced signaling.

  Aliases: PR-1a, PDF 1.2

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review
• salicylic acid pathway

  signaling pathway

  A plant immune signaling pathway considered in the interpretation of defense-gene activation.

  Aliases: SA pathway

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewimjlk (vdp8mqzes2) reviewjihoonc (k5vuy3tzcm) review

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