三週間ほどブログの更新をさぼってしまいました．7/10 の研究室セミナーの文献紹介の担当は四年生の五十嵐さんで，紹介した論文は Bon, D. J.-Y. D., Banwell, M. G., Ward, J. S. & Willis, A. C. From toluene to triquinanes: formal total syntheses of the sesquiterpenoid natural products (−)-hypnophilin and (−)-coriolin. Tetrahedron 69, 1363-1368 (2013) でした．抗トリパノソーマ活性などを有する triquinane 型セスキテルペン化合物の形式的全合成についての論文です．前期の研究室セミナーでの文献紹介はこれで終了し，後期は 10 月から再開です．
先々週から今週にかけての輪読では下記の論文を取り上げました．
349. Zhang, C. et al. (2013). Crosstalk between the circadian clock and innate immunity in Arabidopsis. PLoS Pathogens 9: e1003370.
350. Tytgat, T.O.G. et al. (2013). Plants know where it hurts: root and shoot jasmonic acid induction elicit differential responses in Brassica oleracea. PLoS ONE 8: e65502.
351. Dinh, S.T., Baldwin, I.T., and Galis, I. The HERBIVORE ELICITOR-REGULATED1 (HER1) gene enhances abscisic acid levels and defenses against herbivores in Nicotiana attenuata plants. Plant Physiol. in press.
352. Hamada, A.M., and Jonsson, L.M.V. Thiamine treatments alleviate aphid infestations in barley and pea. Phytochemistry in press.
353. Wu, Y., Wang, Q., Hillwig, M.L., and Peters, R.J. Picking sides: Distinct roles for CYP76M6 and -8 in rice oryzalexin biosynthesis. Biochem. J. in press.
354. Saikkonen, K., Gundel, P.E., and Helander, M. Chemical ecology mediated by fungal endophytes in grasses. J. Chem. Ecol. in press.
355. Song, Y.Y. et al. Priming of anti-herbivore defense in tomato by arbuscular mycorrhizal fungus and involvement of the jasmonate pathway. J. Chem. Ecol. in press.
356. Boone, C.K. et al. Bacteria associated with a tree-killing insect reduce concentrations of plant defense compounds. J. Chem. Ecol. in press.
357. Oluwafemi, S. et al. (2013). Priming of production in maize of volatile organic defence compounds by the natural plant activator cis-jasmone. PLoS ONE 8: e62299.
358. Hammerbacher, A. et al. (2013). A common fungal associate of the spruce bark beetle metabolizes the stilbene defenses of Norway spruce. Plant Physiol. 162: 1324–1336.
359. Mur, L.A.J., Prats, E., Pierre, S., Hall, M.A., and Hebelstrup, K.H. (2013). Integrating nitric oxide into salicylic acid and jasmonic acid/ ethylene plant defence pathways. Front. Plant Sci. 4: 215.
360. Xu, J., Audenaert, K., Hofte, M., and De Vleesschauwer, D. (2013). Abscisic acid promotes susceptibility to the rice leaf blight pathogen Xanthomonas oryzae pv oryzae by suppressing salicylic acid-mediated defenses. PLoS ONE 8: e67413.
361. Møldrup, M.E., Salomonsen, B., Geu-Flores, F., Olsen, C.E., and Halkier, B.A. de novo genetic engineering of the camalexin biosynthetic pathway. J. Biotechnol. in press.
2013年7月27日土曜日
2013年7月5日金曜日
今週の輪読
今週の輪読では下記の論文を取り上げました．月曜日は出席者が一名になってしまったので，中止しました．
345. Wang, H. et al. Flower color polymorphism in Iris lutescens (Iridaceae): Biochemical analyses in light of plant–insect interactions. Phytochemistry in press.
346. Chen, H. et al. (2013). Quality assessment of Japanese knotweed (Fallopia japonica) grown on Prince Edward Island as a source of resveratrol. J. Agric. Food Chem. 61: 6383–6392.
347. Gao, Y., Yu, Y., Hu, X., Cao, Y., and Wu, J. Imaging of jasmonic acid binding sites in tissue. Anal. Biochem. in press.
348. Denancé, N., Sánchez-Vallet, A., Goffner, D., and Molina, A. (2013). Disease resistance or growth: the role of plant hormones in balancing immune responses and fitness costs. Front. Plant Sci. 4: 155.
345. Wang, H. et al. Flower color polymorphism in Iris lutescens (Iridaceae): Biochemical analyses in light of plant–insect interactions. Phytochemistry in press.
346. Chen, H. et al. (2013). Quality assessment of Japanese knotweed (Fallopia japonica) grown on Prince Edward Island as a source of resveratrol. J. Agric. Food Chem. 61: 6383–6392.
347. Gao, Y., Yu, Y., Hu, X., Cao, Y., and Wu, J. Imaging of jasmonic acid binding sites in tissue. Anal. Biochem. in press.
348. Denancé, N., Sánchez-Vallet, A., Goffner, D., and Molina, A. (2013). Disease resistance or growth: the role of plant hormones in balancing immune responses and fitness costs. Front. Plant Sci. 4: 155.
2013年6月29日土曜日
研究室セミナー & 今週の輪読
今週水曜日の研究室セミナーの文献紹介の担当は化学生態学研究室四年生の武井さんで，紹介した論文は Montillet, J.-L. et al. An abscisic acid-independent oxylipin pathway controls stomatal closure and immune defense in Arabidopsis. PLoS Biol. 11, e1001513 (2013) でした．
病原細菌に対する抵抗性反応として起こる気孔の閉孔にはアブシジン酸には依存しないオキシリピンのシグナル伝達経路が関与していることを示した報告です．
今週の輪読では下記の論文を取り上げました．
340. Newman, M.-A., Sundelin, T., Nielsen, J.T., and Erbs, G. (2013). MAMP (Microbe-Associated Molecular Pattern) triggered immunity in Plants. Front. Plant Sci. 4: 139.
341. Matsuba, Y. et al. Evolution of a complex locus for terpene biosynthesis in Solanum. Plant Cell in press.
342. Mikulic-Petkovsek, M. et al. (2013). Alteration of the content of primary and secondary metabolites in strawberry fruit by Colletotrichum nymphaeae infection. J. Agric. Food Chem. 61: 5987–5995.
343. Tocci, N. et al. (2013). Bioassay-guided fractionation of extracts from Hypericum perforatum in vitro roots treated with carboxymethylchitosans and determination of antifungal activity against human fungal pathogens. Plant Physiol. Biochem. 70: 342–347.
344. Wilcock, B.C., Endo, M.M., Uno, B.E., and Burke, M.D. (2013). C2′-OH of amphotericin B plays an important role in binding the primary sterol of human cells but not yeast cells. J. Am. Chem. Soc. 135: 8488–8491.
病原細菌に対する抵抗性反応として起こる気孔の閉孔にはアブシジン酸には依存しないオキシリピンのシグナル伝達経路が関与していることを示した報告です．
今週の輪読では下記の論文を取り上げました．
340. Newman, M.-A., Sundelin, T., Nielsen, J.T., and Erbs, G. (2013). MAMP (Microbe-Associated Molecular Pattern) triggered immunity in Plants. Front. Plant Sci. 4: 139.
341. Matsuba, Y. et al. Evolution of a complex locus for terpene biosynthesis in Solanum. Plant Cell in press.
342. Mikulic-Petkovsek, M. et al. (2013). Alteration of the content of primary and secondary metabolites in strawberry fruit by Colletotrichum nymphaeae infection. J. Agric. Food Chem. 61: 5987–5995.
343. Tocci, N. et al. (2013). Bioassay-guided fractionation of extracts from Hypericum perforatum in vitro roots treated with carboxymethylchitosans and determination of antifungal activity against human fungal pathogens. Plant Physiol. Biochem. 70: 342–347.
344. Wilcock, B.C., Endo, M.M., Uno, B.E., and Burke, M.D. (2013). C2′-OH of amphotericin B plays an important role in binding the primary sterol of human cells but not yeast cells. J. Am. Chem. Soc. 135: 8488–8491.
2013年6月21日金曜日
今週の輪読
今週の輪読では下記の論文を取り上げました．
335. Ghosh, S., Indukuri, K., Bondalapati, S., Saikia, A.K., and Rangan, L. (2013). Unveiling the mode of action of antibacterial labdane diterpenes from Alpinia nigra (Gaertn.) B. L. Burtt seeds. Eur. J. Med. Chem. 66: 101–105.
336. Dai, Y., Witkamp, G.J., Verpoorte, R., and Choi, Y.H. Natural deep eutectic solvents as a new extraction media for phenolic metabolites in Carthamus tinctorius L. Anal. Chem. in press.
337. Yang, J.-O., Nakayama, N., Toda, K., Tebayashi, S., and Kim, C.-S. Elicitor(s) in Sogatella furcifera (Horváth) causing the Japanese rice plant (Oryza sativa L.) to induce the ovicidal substance, benzyl benzoate. Biosci. Biotechnol. Biochem. in press.
338. Moreira, X., et al. Inducibility of chemical defences by two chewing insect herbivores in pine trees is specific to targeted plant tissue, particular herbivore and defensive trait. Phytochemistry in press.
339. Silke, A. et al. (2013). Feeding-induced rearrangement of green leaf volatiles reduces moth oviposition. eLife 2: e00421.
335. Ghosh, S., Indukuri, K., Bondalapati, S., Saikia, A.K., and Rangan, L. (2013). Unveiling the mode of action of antibacterial labdane diterpenes from Alpinia nigra (Gaertn.) B. L. Burtt seeds. Eur. J. Med. Chem. 66: 101–105.
336. Dai, Y., Witkamp, G.J., Verpoorte, R., and Choi, Y.H. Natural deep eutectic solvents as a new extraction media for phenolic metabolites in Carthamus tinctorius L. Anal. Chem. in press.
337. Yang, J.-O., Nakayama, N., Toda, K., Tebayashi, S., and Kim, C.-S. Elicitor(s) in Sogatella furcifera (Horváth) causing the Japanese rice plant (Oryza sativa L.) to induce the ovicidal substance, benzyl benzoate. Biosci. Biotechnol. Biochem. in press.
338. Moreira, X., et al. Inducibility of chemical defences by two chewing insect herbivores in pine trees is specific to targeted plant tissue, particular herbivore and defensive trait. Phytochemistry in press.
339. Silke, A. et al. (2013). Feeding-induced rearrangement of green leaf volatiles reduces moth oviposition. eLife 2: e00421.
2013年6月19日水曜日
研究室セミナー
本日の研究室セミナーの文献紹介の担当は四年生の奥木さんで，紹介した論文は Quandt, E. M. et al. Decaffeination and measurement of caffeine content by addicted Escherichia coli with a refactored N-demethylation operon from Pseudomonas putida CBB5. ACS Synth. Biol. in press でした． 増殖にカフェインを必要とする大腸菌を遺伝子工学的に作成し，カフェインの定量や分解への応用を可能とした報告です．
2013年6月14日金曜日
今週の輪読
今週の輪読では下記の論文を取り上げました．
330. de Oteyza, D.G. et al. Direct imaging of covalent bond structure in single-molecule chemical reactions. Science in press.
331. Zerbe, P. et al. (2013). Gene discovery of modular diterpene metabolism in nonmodel systems. Plant Physiol. 162: 1073–1091.
332. Kim, J. et al. (2013). Structure-guided discovery of the metabolite carboxy-SAM that modulates tRNA function. Nature 498: 123–126.
333. Pereira-Caro, G. et al. Phytochemical profile of a Japanese black-purple rice. Food Chem. in press.
334. Selmar, D., and Kleinwächter, M. (2013). Stress enhances the synthesis of secondary plant products: the impact of stress-related over-reduction on the accumulation of natural products. Plant Cell Physiol. 54: 817–826.
330. de Oteyza, D.G. et al. Direct imaging of covalent bond structure in single-molecule chemical reactions. Science in press.
331. Zerbe, P. et al. (2013). Gene discovery of modular diterpene metabolism in nonmodel systems. Plant Physiol. 162: 1073–1091.
332. Kim, J. et al. (2013). Structure-guided discovery of the metabolite carboxy-SAM that modulates tRNA function. Nature 498: 123–126.
333. Pereira-Caro, G. et al. Phytochemical profile of a Japanese black-purple rice. Food Chem. in press.
334. Selmar, D., and Kleinwächter, M. (2013). Stress enhances the synthesis of secondary plant products: the impact of stress-related over-reduction on the accumulation of natural products. Plant Cell Physiol. 54: 817–826.
2013年6月12日水曜日
研究室セミナー
本日の研究室セミナーの文献紹介の担当は化学生態学研究室四年生の鈴木君で，紹介した論文は Nobusawa, T. et al. Synthesis of very-long-chain fatty acids in the epidermis controls plant organ growth by restricting cell proliferation. PLoS Biology 11, e1001531 (2013) でした． 植物表皮の超長鎖脂肪酸生合成が植物の生長を制限していることを報告した論文です．
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