JIPs and RIPs: the regulation of plant gene expression by jasmonates in response to environmental cues and pathogens.

Reinbothe, Steffen; Mollenhauer, B.; Reinbothe, Christiane

doi:10.1105/tpc.6.9.1197

Cited by 260 publications

(165 citation statements)

References 85 publications

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“…Such releases might be quantified with this dynamic methodology and the data used to assess regional herbivory. In addition, the presence of bacterial, fungal, or vital infections in cultivated crops might be detectable by the VOCs released as part of plant protective responses [Croft et al, 1993;Reinbothe et al, 1994]. If verified, our finding that major leaf pools of hexenals do not exist in unwounded leaves (although pools in stems are possible) would simplify the estimate of primary damage and wound VOC release.…”

Section: How Quickly Are Hexenyl Compounds Produced After Wounding?mentioning

confidence: 97%

Volatile organic compounds emitted after leaf wounding: On‐line analysis by proton‐transfer‐reaction mass spectrometry

Fall¹,

Karl²,

Hansel³

et al. 1999

J. Geophys. Res.

304

278

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Abstract. Volatile organic compounds (VOCs) released from vegetation, including wound-induced VOCs, can have important effects on atmospheric chemistry. The analytical methods for measuring wound-induced VOCs, especially the hexenal family of VOCs (hexenals, hexenols, and hexenyl esters), are complicated by their chemical instability and the transient nature of their formation after leaf and stem wounding. Here we demonstrate that formation and emission of hexenal family compounds can be monitored on-line using proton-transfer-reaction mass spectrometry (PTR-MS), avoiding the need for preconcentration or chromatography. These measurements allow direct analysis of the rapid emission of the parent compound, (Z)-3-hexenal, within 1-2 s of wounding of aspen leaves and then its disappearance and the appearance of its metabolites including (E)-2-hexenal, hexenols, and hexenyl acetates. Similar results were seen in wounded beech leaves and clover. The emission of hexenal family compounds was proportional to the extent of wounding, was not dependent on light, occurred in attached or detached leaves, and was greatly enhanced as detached leaves dried out. Emission of (Z)-3-hexenal from detached drying aspen leaves averaged 500/xg C g-• (dry leaf weight). Leaf wound compounds were not emitted in a nitrogen atmosphere but were released within seconds of reintroduction of oxygen; this indicates that there are not large pools of hexenyl compounds in leaves. The PTR-MS method also allows the simultaneous detection of less abundant hexanal family VOCs including hexanal, hexanol, and hexyl acetate and VOCs formed in the light (isoprene) or during anoxia (acetaldehyde). PTR-MS may be a useful tool for the analysis of VOC emissions resulting from grazing, herbivory, and other physical damage to vegetation, from harvesting of crops, and from senescing leaves. It is clear that the hexanal and hexenal family compounds have sufficient volatility to enter the atmosphere. Arey et al. [1991, 1993] (2) where k is the rate constant for reaction (1) and t is the time the H3 O+ ions need to traverse the drift tube. PTR-MS combines chemical ionization (CI) due to ionmolecule-reactions, introduced by Munson and Field [1966], with the swarm technique of the flow-drift-tube type, invented by Ferguson and his colleagues in the early 1970s [McFarland et al., 1973]. H•O + is used as the ionizing agent and performs proton-transfer-reactions with nearly any VOC but does not react with the major gases of air (as theyIn many cases the proton-transfer reactions are nondissociative; however, in the present case, where emissions of various hexenal and hexanal family compounds were investigated, dissociation occurs during the proton transfer. Using standard hexyl and hexenyl compounds that were available commercially, we examined the fragmentation patterns of each under PTR-MS conditions that were identical to that used in leaf wound volatile analysis. The results are summarized in Table 1, (2) a, 83 (61), 57 (3), 55 (34) 143 (2) a, 99 (1), 83 (66),...

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Section: How Quickly Are Hexenyl Compounds Produced After Wounding?mentioning

confidence: 97%

Volatile organic compounds emitted after leaf wounding: On‐line analysis by proton‐transfer‐reaction mass spectrometry

Fall¹,

Karl²,

Hansel³

et al. 1999

J. Geophys. Res.

304

278

View full text Add to dashboard Cite

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“…The ABA and the JA inductions might represent two parallel independent pathways converging on the same promoter. Given the multitude of responses that JA/MeJA have been implicated in (Reinbothe et al, 1994;Sembdner and Parthier, 1993), several signaling pathways involving JA are likely to exist. The presence of at least partially different wound MeJA-signaling pathways might be indicated by the behavior of wound-induced genes in MeJA-insensitive A. thaliana mutants (Berger et al, 1996).…”

Section: Discussionmentioning

confidence: 99%

“…Several of the wound-induced genes have been demonstrated to respond to JAiMeJA (Hildmann et al, 1992;Reinbothe et at., '1994;Sembdner and Parthier, 1993;Taipalensuu et al, 1996). Furthermore, some of the wound-inducible transcripts also increase in amount in response to ABA, and ABA was found to be required for a functional wound response (Hildmann et al, 1992;PenaCortes et al, 1995).…”

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confidence: 99%

Regulation of the Wound‐Induced Myrosinase‐Associated Protein Transcript in Brassica Napus Plants

Taipalensuu

Andréasson

Eriksson

et al. 1997

European Journal of Biochemistry

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Two slightly differing cDNA clones corresponding to the wound-inducible form of a previously characterized seed myrosinase-associated protein (MyAP) have been isolated from Brassica nupus L. The transcripts corresponding to the induced MyAP (iMyAP) were found to be developmentally regulated in various vegetative organs. Both young and old leaves exhibited wound-inducible iMyAP expression. Furthermore, in the young plant, wounding resulted in a systemic increase in leaves located both acropetally and basipetally to the wounded leaf. Also, the iMyAP transcripts were induced by methyl jasmonate, jasmonic acid and abscisic acid. The different inductions could be antagonized by salicylic acid. A general responsiveness in methyl-jasmonate-treated leaves was demonstrated by in situ hybridization. No effect on the amount of iMyAP transcript was detected after feeding the plants with the ethylene precursor 1-aminocyclopropane-1 -carboxylic acid. The similarity between MyAP and a lipase from Arubidopsis thuliana indicated a possible function in liberating acylated glucosinolates from their acyl group, thereby making them available for hydrolysis by the myrosinase enzymes. We also report on a reduction in the amount of myrosinase transcripts derived from the vegetatively expressed MB-gene family after treatment with exogenously applied salicylic acid or abscisic acid.

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“…The best-studied jasmonate-induced proteins include proteinase inhibitors, thionins, vegetative storage proteins, lipoxygenases, ribosome-inactivating proteins, enzymes of phenylpropanoid metabolism, and others (Koda, 1992; for review, see Reinbothe et al, 1994). The jasmonates can also repress the expression of genes related to photosynthesis at the transcriptional and translational levels (Reinbothe et al, 1994). It has been demonstrated that MeJA induces a shift in the length of the plastid rbcL transcript in barley, thus impairing translation initiation (Reinbothe et al, 1993).…”

mentioning

confidence: 99%

“…These substances can activate the expression of several genes, leading to the accumulation of their products, which are referred to as jasmonate-induced proteins. The best-studied jasmonate-induced proteins include proteinase inhibitors, thionins, vegetative storage proteins, lipoxygenases, ribosome-inactivating proteins, enzymes of phenylpropanoid metabolism, and others (Koda, 1992; for review, see Reinbothe et al, 1994). The jasmonates can also repress the expression of genes related to photosynthesis at the transcriptional and translational levels (Reinbothe et al, 1994).…”

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confidence: 99%

Differential Expression of a Novel Gene in Response to Coronatine, Methyl Jasmonate, and Wounding in the Coi1Mutant of Arabidopsis1

et al. 1998

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Coronatine is a phytotoxin produced by some plant-pathogenic bacteria. It has been shown that coronatine mimics the action of methyl jasmonate (MeJA) in plants. MeJA is a plant-signaling molecule involved in stress responses such as wounding and pathogen attack. In Arabidopsis thaliana, MeJA is essential for pollen grain development. The coi1 (for coronatine-insensitive) mutant of Arabidopsis, which is insensitive to coronatine and MeJA, produces sterile male flowers and shows an altered response to wounding. When the differential display technique was used, a message that was rapidly induced by coronatine in wild-type plants but not in coi1 was identified and the corresponding cDNA was cloned. The coronatine-induced gene ATHCOR1 (for A. thaliana coronatineinduced) is expressed in seedlings, mature leaves, flowers, and siliques but was not detected in roots. The expression of this gene was dramatically reduced in coi1 plants, indicating that COI1 affects its expression. ATHCOR1 was rapidly induced by MeJA and wounding in wild-type plants. The sequence of ATHCOR1 shows no strong homology to known proteins. However, the predicted polypeptide contains a conserved amino acid sequence present in several bacterial, animal, and plant hydrolases and includes a potential ATP/GTP-binding-site motif (P-loop).

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JIPs and RIPs: the regulation of plant gene expression by jasmonates in response to environmental cues and pathogens.

Cited by 260 publications

References 85 publications

Volatile organic compounds emitted after leaf wounding: On‐line analysis by proton‐transfer‐reaction mass spectrometry

Volatile organic compounds emitted after leaf wounding: On‐line analysis by proton‐transfer‐reaction mass spectrometry

Regulation of the Wound‐Induced Myrosinase‐Associated Protein Transcript in Brassica Napus Plants

Differential Expression of a Novel Gene in Response to Coronatine, Methyl Jasmonate, and Wounding in the Coi1Mutant of Arabidopsis1

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