Cellulysin from the plant parasitic fungus <i>Trichoderma viride</i> elicits volatile biosynthesis in higher plants via the octadecanoid signalling cascade

Piel, Jörn; Atzorn, Rainer; Gäbler, R.; Kühnemann, Frank; Boland, Wilhelm

doi:10.1016/s0014-5793(97)01169-1

Cited by 75 publications

(49 citation statements)

References 47 publications

(60 reference statements)

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“…The generation of ROS in response to NaCl and the Trichoderma viride elicitor cellulysin (Piel et al, 1997) has already been demonstrated for Arabidopsis roots . Here, we tested the possible involvement of GORK in NaCl-and cellulysin-induced K + efflux.…”

Section: Stress-activated K + Efflux From Intact Rootsmentioning

confidence: 93%

Arabidopsis root K+-efflux conductance activated by hydroxyl radicals: single-channel properties, genetic basis and involvement in stress-induced cell death

Demidchik

Cuin

Svistunenko

et al. 2010

Journal of Cell Science

449

369

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SummaryReactive oxygen species (ROS) are central to plant stress response, signalling, development and a multitude of other processes. In this study, the plasma-membrane hydroxyl radical (HR)-activated K + channel responsible for K + efflux from root cells during stress accompanied by ROS generation is characterised. The channel showed 16-pS unitary conductance and was sensitive to Ca 2+ , tetraethylammonium, Ba 2+ , Cs + and free-radical scavengers. The channel was not found in the gork1-1 mutant, which lacks a major plasma-membrane outwardly rectifying K + channel. In intact Arabidopsis roots, both HRs and stress induced a dramatic K + efflux that was much smaller in gork1-1 plants. Tests with electron paramagnetic resonance spectroscopy showed that NaCl can stimulate HR generation in roots and this might lead to K + -channel activation. In animals, activation of K + -efflux channels by HRs can trigger programmed cell death (PCD). PCD symptoms in Arabidopsis roots developed much more slowly in gork1-1 and wild-type plants treated with K + -channel blockers or HR scavengers. Therefore, similar to animal counterparts, plant HR-activated K + channels are also involved in PCD. Overall, this study provides new insight into the regulation of plant cation transport by ROS and demonstrates possible physiological properties of plant HR-activated K + channels.

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Section: Stress-activated K + Efflux From Intact Rootsmentioning

confidence: 93%

Arabidopsis root K+-efflux conductance activated by hydroxyl radicals: single-channel properties, genetic basis and involvement in stress-induced cell death

Demidchik

Cuin

Svistunenko

et al. 2010

Journal of Cell Science

449

369

View full text Add to dashboard Cite

show abstract

“…Cellulysin is a fungus-derived enzyme mixture of exo-and endoglucanases that is an extremely potent elicitor of plant volatile biosynthesis through the upregulation of the octadecanoid pathway (Piel et al, 1997). The low-molecular-weight phytotoxin coronatin, which is produced by certain bacteria (Bender et al, 1996;Ichihara et al, 1977), is also a strong elicitor of volatile emissions and mimics specific compounds within the pathway (Weiler et al, 1994;Boland et al, 1995;Schüler et al, 2001).…”

Section: Pathogen-derived Elicitorsmentioning

confidence: 99%

Recruitment of predators and parasitoids by herbivore-injured plants

Turlings

Wäckers

2004

Advances in Insect Chemical Ecology

296

258

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“…DIECA rapidly and efficiently causes the chemical reduction of hydroperoxyoctadecatrienoic acid, the product of the oxidation of linolenic acid by lipoxygenase, which prevents its cyclization and subsequent conversion to downstream products, including JA (Farmer et al 1994). DIECA has been successfully used as a JAinhibitor on a wide range of plant species (Piel et al 1997;Gantet et al 1998;Lee et al 1998;Menke et al 1999;Watanabe et al 2000; Garcia-Ponce and Rocha-Sosa 2000; Bulgakov et al 2004;Saltveit et al 2005;Hu and Zhong 2008;Lee et al 2008;Peebles et al 2009). Elucidation of how JA manipulation influences gall characteristics could improve the interpretation of studies that investigate gall ecology.…”

Section: Introductionmentioning

confidence: 99%