General roles of abscisic and jasmonic acids in gene activation as a result of mechanical wounding.

Hildmann, Thomas; Ebneth, Marcus; Peña‐Cortés, Hugo; Sánchez‐Serrano, José J.; Willmitzer, Lothar; Prat, Salomé

doi:10.1105/tpc.4.9.1157

Cited by 302 publications

(241 citation statements)

References 56 publications

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“…Although the pattern of wound/JA(MeJA)/ABA induction concurs with the behavior of several wound-induced transcripts in potato (Hildmann et al, 1992;Pena-Cortes et al, 1995) and the tomato pin2 transcript (Pena-Cortes et al, 1995), it cannot be taken for granted that this wound-signaling pathway is both ABA and JA dependent. The ABA and the JA inductions might represent two parallel independent pathways converging on the same promoter.…”

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). Also, some of the wound-induced genes exhibit a responsiveness to ethylene (Beerhues and Kombrink, 1994;Xu et al, 1994).…”

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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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Section: Discussionmentioning

confidence: 99%

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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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“…The Adh promoter can be induced in leaves by mechanical wounding (R. Dolferus and G.L. de Bruxelles, unpublished data), another response that might be mediated by ABA (Hildmann et al, 1992).…”

Section: Tissue-specific Expression Of the Adh Promotermentioning

confidence: 99%

Differential Interactions of Promoter Elements in Stress Responses of the Arabidopsis Adh Gene

et al. 1994

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The Adh (alcohol dehydrogenase, EC 1.1.1.1.) gene from Arabidopsis thaliana (1.) Heynh. can be induced by dehydration and cold, as well as by hypoxia. A 1-kb promoter fragment (CADH: -964 to +53) is sufficient to confer the stress indudion and tissuespecific developmental expression characteristics of the Adh gene to a 8-glucuronidase reporter gene. Deletion mapping of the 5' end and site-specific mutagenesis identified four regions of the promoter essential for expression under the three stress conditions. Some sequence elements are important for response to all three stress treatments, whereas others are stress specific. The most critical region essential for expression of the Arabidopsis Adh promoter under all three environmental stresses (region I V -172 to -141) contains sequences homologous to the CT motif (-160 to -152)

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“…LapA genes also respond to signals generated during water deficit and salinity stress (Chao et al, 1999). The potato (Solanum tuberosum) Lap RNAs also accumulate after wounding and exogenous abscisic acid and JA, but increases were not observed after water-deficit stress (Hildmann et al, 1992).Like the eukaryotic and prokaryotic LAPs, the wound-induced LAP-A of tomato is a homo-hexamer (Gu et al, 1996b;Gu and Walling, 2000). The tomato LAP-A enzyme preferentially hydrolyzes substrates with N-terminal Leu, Arg, and Met and does not cleave substrates with N-terminal Asp, Glu, or Gly residues Gu and Walling, 2000 Article, publication date, and citation information can be found at www.plantphysiol.org/cgi…”

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Isolation and Characterization of the Neutral Leucine Aminopeptidase (LapN) of Tomato

Park

Walling

2003

Plant Physiology

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Tomatoes (Lycopersicon esculentum) express two forms of leucine aminopeptidase (LAP-A and LAP-N) and two LAP-like proteins. The relatedness of LAP-N and LAP-A was determined using affinity-purified antibodies to four LAP-A protein domains. Antibodies to epitopes in the most N-terminal region were able to discriminate between LAP-A and LAP-N, whereas antibodies recognizing central and COOH-terminal regions recognized both LAP polypeptides. Two-dimensional immunoblots showed that LAP-N and the LAP-like proteins were detected in all vegetative (leaves, stems, roots, and cotyledons) and reproductive (pistils, sepals, petals, stamens, and floral buds) organs examined, whereas LAP-A exhibited a distinct expression program. LapN was a single-copy gene encoding a rare-class transcript. A full-length LapN cDNA clone was isolated, and the deduced sequence had 77% peptide sequence identity with the wound-induced LAP-A. Leucyl aminopeptidases (LAPs; EC 3.4.11.1) are members of the M17 family of peptidases (Barrett et al., 1998). LAPs are ubiquitous being found in animals, plants, and prokaryotic cells. These hexameric metallopeptidases catalyze the release of the N-terminal residues from protein, peptide, fluorometric, and chromogenic substrates. The best characterized LAPs are from Bos taurus, Escherichia coli and tomato (Lycopersicon esculentum). X-ray crystal structures of the bovine and E. coli LAPs have provided insight into the LAP catalytic mechanism (Kim and Lipscomb, 1994;Sträter and Lipscomb, 1995;Sträter et al., 1999a). The roles of selected residues of the E. coli and tomato LAPs in chromogenic or peptide substrate catalysis, respectively, have been tested by site-directed mutagenesis (Sträter et al., 1999b;Gu and Walling, 2002).In most plants, three classes of LAP-related polypeptides are detected using a tomato LAP antiserum, including the 66-and 77-kD LAP-like proteins and the 55-kD neutral LAP (LAP-N; Chao et al., 2000). Only in a subset of the Solanaceae is a second 55-kD LAP species (LAP-A) detected (Hildmann et al., 1992;Gu et al., 1996b;Chao et al., 2000). In tomato, LAP-A protomers have an acidic pI and are encoded by two genes (LapA1 and LapA2), which are expressed during floral and fruit development. The LapA genes are not expressed in foliage from healthy plants (Chao et al., 1999). However, LapA RNAs, proteins, and activities accumulate locally and systemically in leaves after wounding, Pseudomonas syringae pv. tomato and Phytophthora parasitica infection, and caterpillar feeding (Pautot et al., 1993(Pautot et al., , 2001Gu et al., 1996b;Chao et al., 1999;Jwa and Walling, 2001). The activation of LapA gene expression by jasmonic acid (JA), abscisic acid, the phytotoxin coronatine (a JA mimic), and suppression of LapA by salicylic acid is consistent with the regulation of the tomato LapA genes by the wound octadecanoid pathway (Chao et al., 1999). LapA genes also respond to signals generated during water deficit and salinity stress (Chao et al., 1999). The potato (Solanum tuberosum) Lap RNAs also ac...

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General roles of abscisic and jasmonic acids in gene activation as a result of mechanical wounding.

Cited by 302 publications

References 56 publications

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

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

Differential Interactions of Promoter Elements in Stress Responses of the Arabidopsis Adh Gene

Isolation and Characterization of the Neutral Leucine Aminopeptidase (LapN) of Tomato

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