Volatile metabolites from the headspace of onion bulbs inoculated with postharvest pathogens as a tool for disease discrimination

Vikram, A.; Hamzehzarghani, Habiballah; Kushalappa, Ajjamada C.

doi:10.1080/07060660509507216

Cited by 43 publications

(34 citation statements)

References 21 publications

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“…carotovora, Aspergillus niger, or Penicillium aurantiogriseum. Among 130 volatile metabolites of Fortress onion bulbs was found a simple ethylcyclobutane and 2-azabicyclo [3.2.0] hept-6-ene (1) [12]; 2,4-Methanoproline (2-carboxy-2,4-methanopyrrolidine) (2) and 2,4-methanoglutamic acid (1-amino-1,3-dicarboxycyclobutane) were isolated from seeds of Ateleia herbert-smithii (Leguminosae) [13]. The nonprotein amino acids of the legume genus Bocoa (Papilionoideae; Swartzieae) were surveyed by liquid chromatography (LC)-MS and GC-MS using extracts of herbarium leaf fragments.…”

Section: Terrestrial Cyclobutane-containing Alkaloidsmentioning

confidence: 99%

Bioactive cyclobutane-containing alkaloids

2007

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The present review describes research on novel natural cyclobutane-containing alkaloids and synthetic compounds isolated from terrestrial and marine species. More than 210 compounds have been confirmed to show antimicrobial, antibacterial, anticancer, and other activities. Structures, origins, biosynthesis, photodimerization, and biological activities of a selection of cyclobutane-containing alkaloids and selected synthetic analogs of natural alkaloids are reviewed.

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Section: Terrestrial Cyclobutane-containing Alkaloidsmentioning

confidence: 99%

Bioactive cyclobutane-containing alkaloids

2007

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“…Thus, certain pathogens may be severe enough, or infect maize in such a manner, that VOC induction results (Piesik et al 2011, current study). Studies with other plant species have also detected VOC induction after pathogen infection (Bonello et al 2001, De Lacy Costello et al 2001, Cardoza et al 2002, Vikram et al 2005. More needs to be understood to determine whether certain mechanisms of pathogen infection result in VOC induction and other types of pathogens do not, and the extent to which this is generalizable across plants and pathogens.…”

Section: Discussionmentioning

confidence: 99%

“…This type of defence induction can directly deter future attackers, and/or indirectly function by attracting natural enemies to the attacking agent (Kost & Heil 2006, Hare 2011. Although VOC induction was initially studied and characterized in the context of herbivory (see Hare 2011; hence the term herbivore induced plant volatile (HIPV)), fungal or bacterial pathogen infection also causes plant VOC induction (Bonello et al 2001, Cardoza et al 2002, Vikram et al 2005, Piesik et al 2013, Yi et al 2009). Whereas many types of herbivory result in acutely imposed plant injury, pathogen infection often chronically imposes plant injury, though there are exceptions to both of these generalizations.…”

Section: Introductionmentioning

confidence: 99%

Maize Voc Induction after Infection by the Bacterial Pathogen, Pantoea ananatis, Alters Neighbouring Plant Voc Emissions

et al. 2015

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Plants induce volatile organic compounds (VOCs) after pathogen infection and exposure to a neighbouring infected plant. In a greenhouse, we measured VOCs from maize cv. 'Prosna' 3 or 7 d following foliar, or 42 d following soil, inoculation of Panteoa ananatis, a bacterial pathogen, as well as from uninfected neighbouring maize located 1 or 3 m from each infected plant treatment. We predicted the degree of VOC induction to be greatest 7 d post-foliar > 3 d post-foliar > 42 d post-soil inoculation; also, infected plant VOC induction > 1 m uninfected neighbour > 3 m uninfected neighbour. Maize infected by P. ananatis induced six common green leaf volatiles (GLVs), four common terpenes, and one common skikimic acid pathway derivative. Our results in general confirmed these two predictions, but there was an interaction. While 3 d post-foliar inoculated plants had greater VOC induction than an uninfected neighbour exposed 1 m from a 7 d post-foliar inoculated plant, 42 d post-soil inoculated plants had lower VOC induction than an uninfected neighbour exposed 1 m from a 3 d post-foliar inoculated plant. Thus, infected maize did not always emit higher VOC concentrations than uninfected maize exposed to an infected plant; it depended on the route of infection (foliar vs. soil inoculation) for the infected plant and which infected plant treatment was exposed to an uninfected plant. The VOC blend of maize cv. 'Prosna' after P. ananatis infection appears to be quantitatively different when compared to infection by a Fusarium spp. blend. The relevance of these maize VOC blend differences after infection by different pathogens needs to be studied, but our results suggest that maize responds with quantitatively different VOC blends depending on the infecting pathogen.

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“…In addition, VOCs identification can also allow plant disease diagnosis (Jonsson et al 1997;Wilson and Lester 1998;Harper 2001;Prithiviraj et al 2004;Vikram et al 2005;Laothawornkitkul et al 2008;Spinelli et al 2010Spinelli et al , 2011a.…”

Section: Introductionmentioning

confidence: 99%

Emission of volatile compounds by Erwinia amylovora: biological activity in vitro and possible exploitation for bacterial identification

Spinelli

Cellini

Vanneste

et al. 2011

Trees

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Several analytical techniques such as gas chromatography-mass spectrometry, proton transfer reaction-mass spectrometry and laser photoacoustic detection, were used to characterize the volatiles emitted by Erwinia amylovora and other plant-pathogenic bacteria. Diverse volatiles were found to be emitted by the different bacterial species examined. The distinct blend of volatiles produced by bacteria allowed their identification using an electronic nose (e-nose). The present study reports the discrimination of E. amylovora, the fire blight pathogen, from other plantassociated bacteria using an e-nose based on metal oxide semiconductor sensors. Two different approaches were used for bacterial identification. The first one was the direct comparison of the odorous profiles of unknown bacterial isolates with four selected reference species. The second approach was the use of previously developed databases representing the odorous variability among several bacterial species. Using these two strategies, the e-nose successfully identified the isolates in 87.5 and 62.5% of the cases, respectively. Finally, the profiling of the volatiles emitted by E. amylovora lead to identify some metabolic markers with a potential biological activity in vitro.

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Volatile metabolites from the headspace of onion bulbs inoculated with postharvest pathogens as a tool for disease discrimination

Cited by 43 publications

References 21 publications

Bioactive cyclobutane-containing alkaloids

Bioactive cyclobutane-containing alkaloids

Maize Voc Induction after Infection by the Bacterial Pathogen, Pantoea ananatis, Alters Neighbouring Plant Voc Emissions

Emission of volatile compounds by Erwinia amylovora: biological activity in vitro and possible exploitation for bacterial identification

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