Methyl jasmonate induces pigmentation and flavonoid gene expression in petunia corollas: A possible role in wound response

Tamari, Guy; Borochov, Amihud; Atzorn, Rainer; Weiss, David

doi:10.1111/j.1399-3054.1995.tb00782.x

Cited by 97 publications

(58 citation statements)

References 25 publications

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“…In addition, generalized soluble or wall-bound POD activity increases in other plant species in response to wounding (Birecka and Miller, 1974;Kawaoka et al, 1994), pathogens (Bashan et al, 1987), salicylic acid (Rao et al, 1997), and jasmonates (Thaler et al, 1996;Moore et al, 2003). While JA and insect wounding have been found to elevate total soluble POD activity similarly (Choi et al, 1994;Tamari et al, 1995;Zhang and Baldwin, 1997), this study is among the first to suggest that various peroxidase isozymes may be differentially responsive to JA or other signals (Buzi et al, 2004) and the first to find insectresponsive POD isoforms. Our results also indicate that JA does not elicit POD isozymes in exactly the same manner as does gypsy moth herbivory.…”

Section: Discussionmentioning

confidence: 59%

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Allison

Schultz

2004

J Chem Ecol

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Abstract-We measured total peroxidase activity and the activities of peroxidase isoforms in leaves of red oak (Quercus rubra L.) seedlings exposed to wounding and plant hormones in the greenhouse. Activity of specific peroxidase isoforms was induced differentially by gypsy moth wounding, mechanical wounding, and the wound-associated plant hormone jasmonic acid. Activity of one isoform was enhanced modestly by treatment with salicylate. A study of peroxidase activity in naturally occurring galls elicited on red oak leaves by 12 hymenopteran and dipteran insect species found 16 POD isoforms, 11 of which were differentially induced or suppressed in galls compared with leaves. In both studies, total peroxidase activity as measured spectrophotometrically was not clearly related to activity of these isoforms. These results indicate that red oak seedlings and trees may respond specifically to wounding, particular insects, and plant signals through changes in the activities of individual isozymes.

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Section: Discussionmentioning

confidence: 59%

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Allison

Schultz

2004

J Chem Ecol

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“…Some evidence suggests that jasmonate may up-regulate gibberellin in wounded petunia (Petunia hybrida) corollas (Tamari et al, 1995). Whether the apparent synergism in trichome induction is due to the up-regulation of gibberellin by jasmonic acid is not yet clear.…”

Section: Discussionmentioning

confidence: 99%

Interactive Effects of Jasmonic Acid, Salicylic Acid, and Gibberellin on Induction of Trichomes in Arabidopsis

2003

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Leaf trichomes protect plants from attack by insect herbivores and are often induced following damage. Hormonal regulation of this plant induction response has not been previously studied. In a series of experiments, we addressed the effects of artificial damage, jasmonic acid, salicylic acid, and gibberellin on induction of trichomes in Arabidopsis. Artificial damage and jasmonic acid caused significant increases in trichome production of leaves. The jar1-1 mutant exhibited normal trichome induction following treatment with jasmonic acid, suggesting that adenylation of jasmonic acid is not necessary. Salicylic acid had a negative effect on trichome production and consistently reduced the effect of jasmonic acid, suggesting negative cross-talk between the jasmonate and salicylate-dependent defense pathways. Interestingly, the effect of salicylic acid persisted in the nim1-1 mutant, suggesting that the Npr1/Nim1 gene is not downstream of salicylic acid in the negative regulation of trichome production. Last, we found that gibberellin and jasmonic acid had a synergistic effect on the induction of trichomes, suggesting important interactions between these two compounds.

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“…In radish sprouts, it has been reported that MeJA treatment enhances anthocyanin accumulation due to up-regulation of some flavonoid biosynthesis genes, such as those encoding 4-coumaroyl CoA ligase and dihydroflavonol reductase (Park et al, 2013). Although MeJA reportedly promotes anthocyanin accumulation in detached petunia flowers (Tamari et al, 1995), there have been no subsequent studies of its effects on coloration of detached flowers. In this study, to obtain information on effective treatments to improve flower coloration, we investigated the influence of harvest stage, temperature, sugar, and MeJA vapor using double-flowered Eustoma.…”

Section: Introductionmentioning

confidence: 97%

Nonuniform Coloration of Harvested Flower Buds of Double-flowered <i>Eustoma</i> is Reduced by Methyl Jasmonate Treatment

Mizuno¹,

Fukuta²,

Shimizu-Yumoto³

2017

Hortic J

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Double-flowered Eustoma, a popular cut flower, sometimes shows nonuniform coloration of its petals when harvested at the flower bud stage. At the tips of the petals, pale greenish areas remain after the flowers open. This considerably reduces the value of cut Eustoma. In this study, to identify appropriate postharvest treatments leading to normal coloration of these cut flower buds, we investigated the influence of harvest stage, temperature, sugar, and methyl jasmonate (MeJA) on petal coloration using the Eustoma 'Voyage (Type II) Blue'. Investigation of the harvest stage, which was compared at three flower bud stages (STG2, 3, and 4), revealed that detached pale greenish flower buds (STG2 and 3) had a high probability of becoming nonuniformly colored flowers, so these stages were used for subsequent investigations. Temperature, which was investigated at 20, 25, 30, and 35°C, did not show any influence on petal coloring. Investigation of sugar treatments, such as 1% or 3% glucose or sucrose, also showed no influence. However, MeJA treatment led to a significant difference in petal coloration. The nonuniform coloration of petals was reduced by continuous exposure to MeJA vapor. Furthermore, we performed shorter MeJA treatments, such as for 1 or 2 days after harvesting, which reduced the nonuniform coloration as well as continuous MeJA exposure. To evaluate the effect of MeJA treatment on petal coloration, we measured the rate of pale green areas of petals using digital images. The analysis revealed that the greenish areas in petals exposed to MeJA vapor were significantly smaller than in petals not exposed to MeJA. In addition, there were fewer days to flowering after MeJA treatment. We concluded that postharvest treatment with MeJA is effective for reducing nonuniform coloration of early harvested flower buds of the double-flowered Eustoma 'Voyage (Type II) Blue'.

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Methyl jasmonate induces pigmentation and flavonoid gene expression in petunia corollas: A possible role in wound response

Cited by 97 publications

References 25 publications

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Differential Activity of Peroxidase Isozymes in Response to Wounding, Gypsy Moth, and Plant Hormones in Northern Red Oak (Quercus rubra L.)

Interactive Effects of Jasmonic Acid, Salicylic Acid, and Gibberellin on Induction of Trichomes in Arabidopsis

Nonuniform Coloration of Harvested Flower Buds of Double-flowered <i>Eustoma</i> is Reduced by Methyl Jasmonate Treatment

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