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Journal of Integrative Agriculture 2021年第11期20卷 3075-3083页

作者： LI Can-ying CHENG Yuan HOU Jia-bao ZHU Jie SUN Lei GE Yong-hong College of Food Science and Technology/National and Local Joint Engineering Research Center of Storage Processing and Safety Control Technology for Fresh Agricultural and Aquatic ProductsBohai UniversityJinzhou 121013P.R.China

The present study was conducted to investigate the effects of methyl jasmonate(Me JA)dipping treatment on mitochondrial energy metabolism and quality parameters of Nanguo pears during room temperature *** results showed that Me JA treatment suppressed the respiration rate and weight loss,and maintained the flesh firmness of Nanguo *** JA also effectively maintained the content of ascorbic acid and titratable acidity in the ***,the activities of H^(+)-ATPase,Ca^(2+)-ATPase,succinate dehydrogenase(SDH)and cytochrome C oxidase(CCO)of the Me JA-treated fruit were significantly higher than those of the untreated *** contents of adenosine triphosphate(ATP)and adenosine diphosphate(ADP)and the energy charge were also enhanced by Me JA *** results suggest that postharvest Me JA treatment could maintain the quality of Nanguo pears,in part by modulating mitochondrial energy metabolism during room temperature storage.

关键词： Pyrus ussuriensis energy metabolism methyl jasmonate respiration rate

Characterization of the Tomato Prosystemin Promoter:Organ-specific Expression,Hormone Specificity and methyl jasmonate Responsiveness by Deletion Analysis in Transgenic Tobacco Plants

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Journal of Integrative Plant Biology 2012年第1期54卷 15-32页

作者： Hamlet Avilés-Arnaut John Paul Délano-Frier Center of Research and Advanced Studies (Cinvestav) at Irapuato:Unit for Plant Biotechnology and Genetic Engineering

Tomato systemin is a bioactive peptide that regulates the systemic activation of wound-responsive genes. It is released from its 200 amino acid precursor called prosystemin. Initial tissue-localization and hormone-induced expression assays indicated that the tomato prosystemin gene （SIPS） accumulates mainly in floral tissues and in response to exogenous abscisic acid and methyl jasmonate （MeJA） treatments, respectively. Later, the promoter regions of the PS gene in tomato （Solanum lycopersicum L. cv. Castlemart）, pepper （Capsicum annuum） and potato （Solanum tuberosum） were isolated and an in silico analysis of the SIPS promoter revealed an over-representation of stress- and MeJA-responsive motifs. A subsequent 5＇ deletion analysis of the SIPS promoter fused to the/^-glucuronidase reporter （GUS） gene showed that the -221 to ＋40 bp proximal SIPS promoter region was sufficient to direct the stigma, vascular bundle-specific and MeJA-responsive expression of GUS in transgenic tobacco plants. Important ***-specific, light- and MeJA-responsive cis-elements were also present in this region. These findings provide relevant information regarding the transcriptional regulation mechanisms of the SIPS promoter operating in transgenic tobacco plants. They also suggest that its Ussue-specificity and inducible nature could have wide applicability in plant biotechnology.

关键词： cis-regulatory elements flower specific jasmonic acid methyl jasmonate promoter analysis prosystemin wound-responsive genes.

methyl jasmonate Reduces Chilling Injury and Maintains Postharvest Quality in Peaches

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Agricultural Sciences in China 2003年第11期2卷 1246-1252页

作者： FENG Lei, ZHENG Yong-hua, ZHANG Yan-fen, WANG Feng ZHANG Lan and LU Zhao-xin(College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095 , P.R.China) College of Food Science and Technology Nanjing Agricultural University Nanjing 210095 P.R. China

Zhaohui peaches(Prunus persica Batsch)were treated with 0(CK), 1, 10 or 100 μmol L-1 methyl jasmonate(MeJA)vapor at 20℃ for 24 h before stored at 0℃ for 35 d. The untreated fruits showed chilling injury(CD symptoms after 4 wk of storage, as indicated by increased fruit firmness and reduced ex-tractable juice, which is referred as leatheriness. Treatment with 1 and 10 μmol L-1 MeJA promoted normal ripening and softening, maintained higher levels of extractable juice, titratable acidity, pectinesterase(PE)and polygalacturonase(PC)activities, inhibited increases in fruit fresh weight loss, decay incidence, electrolyte leakage and MDA content, and improved color development, thereby preventing chilling injury symptoms development and maintaining edible quality. MeJA treatment also delayed the climacteric rise in respiratory rate, but promoted ethylene production during the later period of cold storage, suggesting that ethylene may involve in CI development of peaches. These results indicate that 1 and 10 μmol L-1 MeJA treatments could be used to reduce CI development and decay incidence in peaches.

关键词： Peach fruit Chilling injury Leatheriness Quality methyl jasmonate

Anti-inflammatory and membrane stabilizing properties of methyl jasmonate in rats

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Chinese Journal of Natural Medicines 2017年第3期15卷 202-209页

作者： UMUKORO Solomon ALABI Akinyinka Oladipo EDUVIERE Anthony Taghogho AJAYI Abidemi Mayowa OLUWOLE Oluwafemi Gabriel Department of Pharmacology and Therapeutics Faculty of Basic Medical Sciences University of lbadanIbadanNigeria Department of Pharmacology Faculty of Basic Medical SciencesOlabisi Onabanjo UniversityAgo-IwoyeNigeria Department of Pharmacology and Therapeutics College of Medicine and Health SciencesAfe Babalola UniversityAdo-Ekiti Nigeria

The present investigation was carried out to evaluate anti-inflammatory and membrane stabilizing properties of methyl jasmonate(MJ) in experimental rat models of acute and chronic *** effects of MJ on acute inflammation were assessed using carrageenan-induced rat's paw edema *** granuloma air pouch model was employed to evaluate the effects of MJ on chronic inflammation produced by carrageenan in *** number of white blood cells(WBC) in pouch exudates was estimated using light *** levels of biomarkers of oxidative stress,such as malondialdehyde(MDA),glutathione(GSH) and activity of antioxidant enzymes in the exudates,were determined using *** membrane stabilizing property of MJ was assessed based on inhibition of hemolysis of rat red blood cells(RBC) exposed to hypotonic *** results indicated that MJ(25-100 mg·kg-1,i.p.) produced significant anti-inflammatory activity in carrageenan-induced paw edema in rats(P methyl jasmonate in disease conditions associated with inflammation and its anti-inflammatory activity may be related to its antioxidant and membrane stabilizing activities.

关键词： methyl jasmonate Granuloma air pouch model Anti-inflammatory Antioxidant Membrane stabilizing property

Leaf and root glucosinolate profiles of Chinese cabbage(Brassica rapa ssp. pekinensis) as a systemic response to methyl jasmonate and salicylic acid elicitation

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第8期16卷 696-708页

作者： Yun-xiang ZANG Jia-li GE Ling-hui HUANG Fei GAO Xi-shan LV Wei-wei ZHENG Seung-beom HONG Zhu-jun ZHU Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province Research Center of Bio-Breeding IndustrySchool of Agricultural and Food Science Zhejiang A & F University Department of Biotechnology University of Houston-Clear Lake

Glucosinolates （GSs） are an important group of defensive phytochemicals mainly found in Brassicaceae. Plant hormones jasmonic acid （JA） and salicylic acid （SA） are major regulators of plant response to pathogen attack. However, there is little information about the interactive effect of both elicitors on inducing GS biosynthesis in Chinese cabbage （Brassica rapa ssp. pekinensis）. In this study, we applied different concentrations of methyl jasmonate （MeJA） and/or SA onto the leaf and root of Chinese cabbage to investigate the time-course interactive profiles of GSs. Re- gardless of the site of the elicitation and the concentrations of the elicitors, the roots accumulated much more GSs and were more sensitive and more rapidly responsive to the elicitors than leaves. Irrespective of the elicitation site, MeJA had a greater inducing and longer lasting effect on GS accumulation than SA. All three components of indole GS （IGS） were detected along with aliphatic and aromatic GSs. However, IGS was a major component of total GSs that ac- cumulated rapidly in both root and leaf tissues in response to MeJA and SA elicitation. Neoglucobrassicin （neoGBC） did not respond to SA but to MeJA in leaf tissue, while it responded to both SA and MeJA in root tissue. Conversion of glucobrassicin （GBC） to neoGBC occurred at a steady rate over 3 d of elicitation. Increased accumulation of 4-methoxy glucobrassicin （4-MGBC） occurred only in the root irrespective of the type of elicitors and the site of elici- tation. Thus, accumulation of IGS is a major metabolic hallmark of SA＊ and MeJA-mediated systemic response sys- tems. SA exerted an antagonistic effect on the MeJA-induced root GSs irrespective of the site of elicitation. However, SA showed synergistic and antagonistic effects on the MeJA-induced leaf GSs when roots and leaves are elicitated for 3 d, respectively.

关键词： Chinese cabbage methyl jasmonate Salicylic acid Glucosinolate Interactive effect

Transcriptome changes in Polygonum multiflorum Thunb. roots induced by methyl jasmonate

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第12期16卷 1027-1041页

作者： Hong-chang LIU Wei WU Kai HOU Jun-wen CHEN Zhi ZHAO College of Agronomy Sichuan Agricultural University Guizhou Key (Engineering) Laboratory for Propagation and Cultivation of Medicinal Plants

Transcriptome profiling has been widely used to analyze transcdptomic variation in plants subjected to abiotic or biotic stresses. Although gene expression changes induced by methyl jasmonate （MeJA） have been profiled in several plant species, no information is available on the MeJA-triggered transcriptome response of Polygonum multiflorum Thunb., a species with highly valuable medicinal properties. In this study, we used transcriptome profiling to investigate transcdptome changes in roots of P. mu/tiflorum seedlings subjected to a 0.25 mmol/L-MeJA rootirrigation treatment. A total of 18 677 differentially expressed genes （DEGs） were induced by MeJA treatment, of which 4535 were up-regulated and 14 142 were down-ragulated compared with controls. These DEGs were associated with 125 metabolic pathways. In addition to various common primary and secondary metabolic pathways, several sec- ondary metabolic pathways related to components with significant pharmacological effects were enriched by MeJA, including arachidonic acid metabolism, linoleic acid metabolism, and stilbenoid biosynthesis. The MeJA-induced transcdptome changes uncovered in this study provide a solid foundation for future study of functional genes controlling effective components in secondary metabolic pathways of P. multiflorum.

关键词： Polygonum multiflorum Thunb. methyl jasmonate Transcriptome change Differentially expressed genes

Increased Endogenous methyl jasmonate Altered Leaf and Root Development in Transgenic Soybean Plants

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Journal of Genetics and Genomics 2007年第4期34卷 339-346页

作者：薛仁镐张标莱阳农学院生命科学学院青岛266109

methyl jasmonate （MeJA） is a plant-signaling molecule that regulates plant morphogenesis and expression of plant defense genes. To determine the role of the endogenous MeJA levels in the development of plants, transgenic soybean [Glycine max （L.） Merrill] plants harboring NTR1 gene encoding for jasmonic acid carboxyl methyltransferase （JMT） were produced. The activation of NTR1 gene expression resulted in the production of MeJA. Overexpression of the NTR1 cDNA under the regulation of cauliflower mosaic virus （CaMV） 35S promoter in the transgenic soybean plants was confirmed using Northern blot analysis. The significant differences in leaf and root growth patterns were observed between the transgenic plants and the wild-type plants. The leaves of the transgenic plants were slightly elongated in length but dramatically narrowed in width compared with the nontrans-formed wild-type plants. In addition, elongation of primary root was inhibited in the overexpressed transgenic soybean plantlets, whereas the development of lateral root was stimulated relative to the nontransformed plants. The leaves of the transgenic plants showed 2-2.5-fold higher levels of MeJA than the control plants. These results indicated that the increased endogenous levels of MeJA is involved in regulation of morphogenesis in soybean plants.

关键词： methyl jasmonate morphogenesis NTR1 overexpression soybean

Effect of Postharvest methyl jasmonate Treatment on Early-Matured “Hass” Avocado Fruit Exocarp Colour Development during Ripening

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Agricultural Sciences 2021年第8期12卷 875-887页

作者： Kingsly Shikwambana Tieho P. Mafeo Nhlanhla Mathaba School of Agriculture and Environmental Sciences Faculty of Science and Agriculture University of Limpopo Sovenga Polokwane South Africa Postharvest Management and Food Security School of Agricultural Science Faculty of Agriculture and Natural Sciences University of Mpumalanga Nelspruit South Africa

Poor exocarp colour development is a common postharvest problem for early harvested “Hass” avocado fruit during ripening, which affects fruit quality and consumer preference. Therefore, measures to improve “Hass” avocado fruit colour developments are of great importance in the industry. This study investigated the effectiveness of postharvest methyl jasmonate treatment to improve early matured “Hass” avocado fruit exocarp colour during ripening. The results showed that T1 (10 μmol∙L−1) and T2 (100 μmol∙L−1) MeJA treatment increased visual colour, and decreased objective colour parameters (L*, C* and h˚) during ripening when compared with control fruit. Moreover, MeJA treated “Hass” avocado fruits had lower total chlorophyll content and higher total anthocyanin and cyanidin-3-O-glucoside concentration during ripening. In conclusion, “Hass” avocado fruit post-harvest treated with either T1 (10 μmol∙L−1) or T2 (100 μmol∙L−1) MeJA concentration improved exocarp quality attributes such as colour parameters (L*, C* h˚ and visual colour) and pigments (total anthocyanin and cyanidin-3-O-glucoside) during ripening, therefore, can be recommended for avocado fruit.

关键词： Avocado Colour methyl jasmonate Anthocyanin Cyanidin-3-O-Glucoside

Determination of both Jasmonic Acid（JA） and methyl jasmonate（MeJA） in Plant Samples by Liquid Chromatography Tandem Mass Spectrometry

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Determination of both Jasmonic Acid（JA） and Methyl Jasmona...

CHANGES OF CALCIUM AND THE RESPONSES TO methyl jasmonate IN RICE LODICULES DURING ANTHESIS

中国植物生理学会第十次会员代表大会暨全国学术年会

作者： Xia Liu, Zhigang Huang, Ruozhong Wang, Hesong Li, Langtao Xiao* Hunan Provincial Key Laboratory of Phytorhormones and Growth Development, Hunan Agricultural University, Changsha 410128, China

＜正＞An efficient method for the extraction and quantification of both jasmonic acid（JA） and methyl jasmonate（MeJA） from a single plant sample was developed. Plant tissues were firstly extracted using 100%

关键词： Jasmonic acid methyl jasmonate Extraction and purification LC-MS-MS

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CHANGES OF CALCIUM AND THE RESPONSES TO METHYL JASMONATE IN ...