夏季休業 & 8/5-9 の輪読
8/5-9 の輪読では下記の論文を取り上げました.
2441. Xiao, X., Hu, A.Y., Dong, X.Y., Shen, R.F., and Zhao, X.Q. (2023). Involvement of the 4-coumarate:coenzyme A ligase 4CL4 in rice phosphorus acquisition and rhizosphere microbe recruitment via root growth enlargement. Planta 258: 7.
2442. Burns, A.R. et al. (2023). Selective control of parasitic nematodes using bioactivated nematicides. Nature 618: 102–109.
2443. Ramos, R.N. et al. (2023). Loss-of-function mutations in WRKY22 and WRKY25 impair stomatal-mediated immunity and PTI and ETI responses against Pseudomonas syringae pv. tomato. Plant Mol. Biol. 112: 161–177.
2444. Kalboush, Z.A., Abdelkhalek, S.M., Anis, G.B., Hassan, A.A., and Gabr, W.E. (2023). Phenotypic and molecular identification of some blast resistance genes and biochemical responses of rice genotypes against rice blast pathogen. Physiol. Mol. Plant Pathol. 127: 102052.
2445. Jalilian, A. et al. (2023). The RLCK subfamily VII-4 controls pattern-triggered immunity and basal resistance to bacterial and fungal pathogens in rice. Plant J. 115: 1345–1356.
機器分析実験,研究室セミナー,先週の輪読
先週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の四年生で,以下の論文を報告しました.
Kosakivska, I., Voytenko, L., Vasyuk, V., and Shcherbatiuk, M. (2024). ABA-induced alterations in cytokinin homeostasis of Triticum aestivum and Triticum spelta under heat stress. Plant Stress 11: 100353.
先週の輪読では下記の論文を取り上げました.
2427. Song, L. et al. (2023). Reducing brassinosteroid signalling enhances grain yield in semi-dwarf wheat. Nature 617: 118–124.
2428. Berman, P. et al. (2023). Parallel evolution of cannabinoid biosynthesis. Nat. Plants 9: 817–831.
2429. Aryal, B. et al. (2023). An LRR receptor kinase controls ABC transporter substrate preferences during plant growth-defense decisions. Curr. Biol. 33: 2008–2023.e8.
2430. Castro, C. et al. (2023). Priming grapevine with lipopolysaccharide confers systemic resistance to Pierce’s disease and identifies a peroxidase linked to defense priming. New Phytol. 239: 687–704.
機器分析実験,研究室セミナー,今週の輪読
今週の研究室セミナーの文献紹介の担当は生物制御化学研究室の四年生で,以下の論文を報告しました.
Escaray, F.J. et al. (2024). Plant triterpenoid saponins function as susceptibility factors to promote the pathogenicity of Botrytis cinerea. Mol. Plant 17: 1073–1089.
今週の輪読では下記の論文を取り上げました.
2418. Tetorya, M. et al. (2023). Plant defensin MtDef4-derived antifungal peptide with multiple modes of action and potential as a bio-inspired fungicide. Mol. Plant Pathol. 24: 896–913.
2419. Newman, T.E. et al. (2023). The broad host range pathogen Sclerotinia sclerotiorum produces multiple effector proteins that induce host cell death intracellularly. Mol. Plant Pathol. 24: 866–881.
2420. Li, G. et al. (2023). Integrated microbiome and metabolomic analysis reveal responses of rhizosphere bacterial communities and root exudate composition to drought and genotype in rice (Oryza sativa L.). Rice 16: 19.
2421. Latorre, S.M. et al. (2023). Genomic surveillance uncovers a pandemic clonal lineage of the wheat blast fungus. PLOS Biol. 21: e3002052.
105 分授業開始 & 4/10-4/19 の輪読
4/10-4/19 の輪読では下記の論文を取り上げました.
2370. He, Y. et al. (2024). The OsBZR1–OsSPX1/2 module fine-tunes the growth–immunity trade-off in adaptation to phosphate availability in rice. Mol. Plant 17: 258–276.
2371. Xu, L. et al. (2023). AIM1-dependent high basal salicylic acid accumulation modulates stomatal aperture in rice. New Phytol. 238: 1420–1430.
2372. Zhang, L. et al. (2023). OsCCRL1 is essential for phenylpropanoid metabolism in rice anthers. Rice 16: 10.
2373. Mmbando, G.S., Ando, S., Takahashi, H., and Hidema, J. (2023). High ultraviolet-B sensitivity due to lower CPD photolyase activity is needed for biotic stress response to the rice blast fungus, Magnaporthe oryzae. Photochem. Photobiol. Sci. 22: 1309–1321.
2374. Li, C. et al. (2023). DNA demethylase gene OsDML4 controls salt tolerance by regulating the ROS homeostasis and the JA signaling in rice. Environ. Exp. Bot. 209: 105276.
2375. Kourelis, J., Marchal, C., Posbeyikian, A., Harant, A., and Kamoun, S. (2023). NLR immune receptor–nanobody fusions confer plant disease resistance. Science 379: 934–939.
2376. Shi, H. et al. Naringenin restricts the colonization and growth of Ralstonia solanacearum in tobacco mutant KCB-1. Plant Physiol. in press.
2377. García-Romeral, J., Castanera, R., Casacuberta, J., and Domingo, C. (2024). Deciphering the genetic basis of allelopathy in japonica rice cultivated in temperate regions using a genome-wide association study. Rice 17: 22.
仕事納め & 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.
2309. Verhoeven, A. et al. (2023). The root-knot nematode effector MiMSP32 targets host 12-oxophytodienoate reductase 2 to regulate plant susceptibility. New Phytol. 237: 2360–2374.
2310. Wu, J., Zhu, W., and Zhao, Q. (2023). Salicylic acid biosynthesis is not from phenylalanine in Arabidopsis. J. Integr. Plant Biol. 65: 881–887.
2311. Acharya, U., Das, T., Ghosh, Z., and Ghosh, A. (2022). Defense surveillance system at the interface: response of rice towards Rhizoctonia solani during sheath blight infection. Mol. Plant-Microbe Interact. 35: 1081–1095.
ゴールデンウィーク & 4/24-5/2 の輪読
4/24 〜 5/2 の一人輪読では下記の論文を読みました.
2177. Nguyen, N.H. et al. (2022). Camalexin accumulation as a component of plant immunity during interactions with pathogens and beneficial microbes. Planta 255: 116.
2178. Liao, Z. et al. (2022). The lipoxygenase gene OsRCI-1 is involved in the biosynthesis of herbivore-induced JAs and regulates plant defense and growth in rice. Plant Cell Environ. 45: 2827–2840.
2179. Mehra, P. et al. (2022). OsJAZ11 regulates spikelet and seed development in rice. Plant Direct 6: e401.
2180. da Cruz Ramos Pires, G.H. et al. (2022). Sakuranetin interacting with cell membranes models: Surface chemistry combined with molecular simulation. Colloids Surf., B 216: 112546.
2181. Sato, K. et al. (2022). Green tea catechins, (−)-catechin gallate, and (−)-gallocatechin gallate are potent inhibitors of ABA-induced stomatal closure. Adv. Sci. 9: 2201403.
2182. Wang, L., Fu, J., Shen, Q., and Wang, Q. OsWRKY10 extensively activates multiple rice diterpenoid phytoalexin biosynthesis to enhance rice blast resistance. Plant J. in press.
2183. Chavan, S.N. et al. (2022). Dehydroascorbate induces plant resistance in rice against root knot nematode Meloidogyne graminicola. Mol. Plant Pathol. 23: 1303–1319.
授業開始 & 今週の輪読
今週の一人輪読では下記の論文を読みました.
2167. Wang, L. et al. (2023). The OsBDR1-MPK3 module negatively regulates blast resistance by suppressing the jasmonate signaling and terpenoid biosynthesis pathway. Proc. Natl. Acad. Sci. U. S. A. 120: e2211102120.
2168. Ameixa, O.M.C.C., Rebelo, J., Silva, H., and Pinto, D.C.G.A. (2022). Gall midge Baldratia salicorniae Kieffer (Diptera: Cecidomyiidae) infestation on Salicornia europaea L. induces the production of specialized metabolites with biotechnological potential. Phytochemistry 200: 113207.
2169. Klinnawe, L., Kaewchumnong, K., and Nualtem, K. (2023). Effect of phosphorus deficiency on allelopathic activity of lowland indica rice. ScienceAsia 49: 184–191.
2170. Pires, G.H.D.C.R., Barbosa, H., Almeida, R.B.P., Lago, J.H.G., and Caseli, L. (2023). Ethanolamine phospholipids at the air-water interface as cell membranes models of microorganisms to study the nanotoxicology of sakuranetin. Thin Solid Films 770: 139768.
2171. Huang, J. et al. (2022). Enantioselective response of wheat seedlings to imazethapyr: from the perspective of fe and the secondary metabolite DIMBOA. J. Agric. Food Chem. 70: 5516–5525.
仕事始め,105 分授業,今週の輪読
そういう問題を解決するという意味もあって,2024 年 4 月から茨城大学では従来の 90 分授業を 105 分授業に変更することが決定されています(令和6年度からの授業時間の変更について).これにより今までの 15 回+期末試験が 13 回+期末試験に変更になるため,授業のスケジュールに余裕を持たせられるようになることが期待されています.しかし,その代償として一コマの授業がかなり長時間になってしまうので,教える立場としては授業をより一層工夫しないと 90 分でも飽きられてしまいがちなのに,さらに学生に飽きられてしまいそうです.また,5 講時終了は 18:45 とかなり遅い時刻になってしまいます.
今週の輪読は 1/5 から始めて下記の論文を取り上げました.
2128. Mahdi, L.K. et al. (2022). The fungal root endophyte Serendipita vermifera displays inter-kingdom synergistic beneficial effects with the microbiota in Arabidopsis thaliana and barley. ISME J. 16: 876–889.
2129. Korgaonkar, A. et al. (2021). A novel family of secreted insect proteins linked to plant gall development. Curr. Biol. 31: 1836–1849.e12.
冬休み,仕事納め,今週の輪読
今週は月曜日に一回だけ輪読を行いました.
2127. Wang, J., Zhang, C., and Li, Y. (2022). Genome-wide identification and expression profiles of 13 key structural gene families involved in the biosynthesis of rice flavonoid scaffolds. Genes 13: 410.
後期授業開始 & 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.
2081. Hu, Y. et al. (2022). Salicylic acid carboxyl glucosyltransferase UGT87E7 regulates disease resistance in Camellia sinensis. Plant Physiol. 188: 1507–1520.
2082. Schott, J., Fuchs, B., Böttcher, C., and Hilker, M. (2021). Responses to larval herbivory in the phenylpropanoid pathway of Ulmus minor are boosted by prior insect egg deposition. Planta 255: 16.
2083. Maver, M. et al. (2021). Applications of the indole-alkaloid gramine modulate the assembly of individual members of the barley rhizosphere microbiota. PeerJ 9: e12498.
2084. Ishihama, N. et al. (2021). Oxicam-type non-steroidal anti-inflammatory drugs inhibit NPR1-mediated salicylic acid pathway. Nat. Commun. 12: 7303.
2085. Nomoto, M. et al. (2021). Suppression of MYC transcription activators by the immune cofactor NPR1 fine-tunes plant immune responses. Cell Rep. 37: 110125.
夏休み & 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.
2061. Yu, M. et al. (2021). The OsSPK1–OsRac1–RAI1 defense signaling pathway is shared by two distantly related NLR proteins in rice blast resistance. Plant Physiol. 187: 2852–2864.
2062. Salman, E.K., Ghoniem, K.E., Badr, E.S., and Emeran, A.A. (2022). The potential of dimetindene maleate inducing resistance to blast fungus Magnaporthe oryzae through activating the salicylic acid signaling pathway in rice plants. Pest Manage. Sci. 78: 633–642.
期末試験 & 今週の輪読
長谷川が担当している二年生向けの科目「一般化学 II」では今年度から通常の期末試験期間の一週間前に期末試験を実施し,期末試験の時間帯に期末試験の振り返りの授業を行うやり方にしました.大学では期末試験を受けたら後は野となれ山となれという感じの授業がほとんどですが,本来はできなかった問題を復習することが重要だと思います.
今週の輪読では下記の論文を取り上げました.
2059. Hoang Anh, L. et al. (2022). Rice momilactones and phenolics: expression of relevant biosynthetic genes in response to UV and chilling stresses. Agronomy 12: 1731.
2060. Rencoret, J. et al. (2022). Flavonoids naringenin chalcone, naringenin, dihydrotricin, and tricin are lignin monomers in papyrus. Plant Physiol. 188: 208–219.
ゴールデンウィーク & 今週の輪読
今週の輪読も金曜日に一回だけしか行えませんでしたが,下記の論文を取り上げました.
2019. Rich, M.K. et al. (2021). Lipid exchanges drove the evolution of mutualism during plant terrestrialization. Science 372: 864–868.
対面授業開始 & 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.
2015. Liu, B. et al. (2021). Functional specificity, diversity and redundancy of Arabidopsis JAZ family repressors in jasmonate and COI1-regulated growth, development and defense. New Phytol. 231: 1525–1545.
2016. Courdavault, V., O’Connor, S.E., Jensen, M.K., and Papon, N. (2021). Metabolic engineering for plant natural products biosynthesis: new procedures, concrete achievements and remaining limits. Nat. Prod. Rep. 38: 2145–2153.
2017. Enomoto, H., and Miyamoto, K. (2021). Unique localization of jasmonic acid-related compounds in developing Phaseolus vulgaris L. (common bean) seeds revealed through desorption electrospray ionization-mass spectrometry imaging. Phytochemistry 188: 112812.
授業開始 & 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.
2012. Villard, C. et al. (2021). A new P450 involved in the furanocoumarin pathway underlies a recent case of convergent evolution. New Phytol. 231: 1923–1939.
2013. Xu, Y., Cheng, H.-F., Kong, C.-H., and Meiners, S.J. (2021). Intraspecific kin recognition contributes to interspecific allelopathy: A case study of allelopathic rice interference with paddy weeds. Plant Cell Environ. 44: 3709–3721.
2014. Yang, D. et al. (2021). Transcriptome analysis of rice response to blast fungus identified core genes involved in immunity. Plant Cell Environ. 44: 3103–3121.
雪 & 今週の輪読
1/6 夜の農学部玄関前
今週の輪読では下記の論文を取り上げました.
1961. He, Z.-d. et al. (2021). The rice germin-like protein OsGLP1 participates in acclimation to UV-B radiation. Plant Physiol. 186: 1254–1268.
1962. Zabel, S. et al. (2021). A single cytochrome P450 oxidase from Solanum habrochaites sequentially oxidizes 7-epi-zingiberene to derivatives toxic to whiteflies and various microorganisms. Plant J. 105: 1309–1325.
1963. Agerbirk, N. et al. (2021). Comparison of glucosinolate diversity in the crucifer tribe Cardamineae and the remaining order Brassicales highlights repetitive evolutionary loss and gain of biosynthetic steps. Phytochemistry 185: 112668.
1964. van Doan, C. et al. (2021). Herbivore-induced plant volatiles mediate defense regulation in maize leaves but not in maize roots. Plant Cell Environ. 44: 2672–2686.
後学期開始,ワクチン接種,今週の輪読
学生対象の新型コロナウイルスワクチンの職域接種は今週で 2 回目が完了しました.モデルナ製ワクチンは 2 回目の副反応がなかなか厳しいので,研究室の学生たちも接種翌日はダウンしていたようです.私(長谷川)は茨城県の大規模接種会場でモデルナ製ワクチンの接種を 7, 8 月に受けましたが,やはり 2 回目接種の翌日は 38.6 ℃ まで体温が上がってかなりきつかったです.まあ寝てれば熱は下がるので,コロナにかかることを思えば,どうということはないのですが.
今週の輪読では下記の論文を取り上げました.
1908. Yang, Z. et al. (2021). Genetic mapping identifies a rice naringenin O-glucosyltransferase that influences insect resistance. Plant J. 106: 1401–1413.
1909. Liu, Y. et al. (2021). Characterization of defensive cadinenes and a novel sesquiterpene synthase responsible for their biosynthesis from the invasive Eupatorium adenophorum. New Phytol. 229: 1740–1754.
前学期終了 & 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.
1881. Ye, M. et al. (2021). Indole primes defence signalling and increases herbivore resistance in tea plants. Plant Cell Environ. 44: 1165–1177.
機器分析実験終了
GC-MS の故障はターボ分子ポンプという質量分析計を真空引きする非常に重要な部品の故障かもしれません.これはちょっと困った事態ですが,農学部共通機器として学生実験だけでなく研究にも使われている大事な装置なので,何とか予算を確保して修理する手を考えなければならなくなりそうです.
機器分析実験,研究室セミナー,今週の輪読
今週の研究室セミナーでは生物制御化学研究室の 4 年生 2 名が下記の論文を紹介しました.
Kumaraswamy, G., Ramesh, V., and Vijaykumar, S. (2021). Enantioselective total synthesis of sesquiterpenoid phellilane L and its diastereomer. Tetrahedron 87: 132110.
Lee, D. et al. (2019). Total synthesis of 4-epi-atpenin A5 as a potent nematode complex II inhibitor. Tetrahedron 75: 3178–3185.
今週の輪読では下記の論文を取り上げました.
1875. Su, Q. et al. (2020). Defence priming in tomato by the green leaf volatile (Z)-3-hexenol reduces whitefly transmission of a plant virus. Plant Cell Environ. 43: 2797–2811.
1876. Han, K. et al. (2020). Rice stripe virus coat protein induces the accumulation of jasmonic acid, activating plant defence against the virus while also attracting its vector to feed. Mol. Plant Pathol. 21: 1647–1653.
第 2 クォーター授業開始
長谷川は第 1 クォーターは大学院の授業「生物制御化学特論」といくつかの分担科目を担当していましたが,第 2 クォーターは学部 2 年生向けの専門科目「一般化学 II」を担当します.
一般化学 II は今日から授業が始まりました.今年度の授業は昨年度のオンライン授業で作成した動画のオンデマンド視聴を予習でやってもらって,授業中は演習を中心に行うといういわゆる反転授業の形式でやってみたいと考えています.今日は初回でしたので,授業の進め方と演習の練習をやりましたが,来週から本格的に反転授業形式で授業開始です.
研究室活動再開
今日のニュースでは職場や大学などでのワクチンの集団接種も始めるということで,学生さんのワクチン接種が早まってくれれば,夏休み明けの後期からは徐々に平常通りの大学が戻ってくるのではないかと期待しています.