Article
Plant Sciences
Anna Berim, David R. Gang
Summary: Salicylic acid (SA) is a key plant hormone involved in various physiological processes, with its concentration in plants finely regulated by structural modifications. The lycophyte Selaginella moellendorffii, representing an ancient clade of vascular plants, primarily stores SA and related metabolites as glucosides in its aerial parts. The study highlights the need for further experimental characterization of enzymes in SA metabolism to elucidate physiological functions and mechanisms in ancestral plant species.
Article
Plant Sciences
Moena Tanaka, Takao Koeduka, Kenji Matsui
Summary: Green leaf volatiles (GLVs) are six-carbon volatile aldehydes, alcohols, and esters formed from polyunsaturated fatty acids, involved in plant defense. GLVs are quickly activated in plant tissues by mechanical damage. Monilophytes and lycophytes show substantial GLV-burst ability, while bryophytes have limited capability.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Yapei Zhao, Tian Hu, Ruiqi Liu, Zhiqiang Hao, Guoyan Liang, Guanglin Li
Summary: This study investigated the biochemical functions of SmMTPSLs in Selaginella moellendorffii, identifying their roles in synthesizing monoterpenes and sesquiterpenes, as well as their potential involvement in plant response to stress. Additionally, it demonstrated the antibacterial effects of terpenoids produced by specific SmMTPSLs on Pseudomonas syringae pv. tomato DC3000 and Staphylococcus aureus.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Shijun Yuan, Zihan Li, Wei Huang, Keli Chen, Juan Li
Summary: In this study, it was found that flavonoid glycosides extract, some flavonoid glycosides, and apigenin in Selaginella moellendorffii have estrogenic activity and induce cell proliferation in estrogen receptor-positive cells. The induction of ER alpha expression through MAPK and PI3K/Akt/mTOR pathways might be the possible mechanism underlying the phytoestrogen effect, and flavonoid glycosides could be the critical estrogenic constituents.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Pharmacology & Pharmacy
Xueyan Zhang, Yingbo Liu, Guangrui Deng, Bisheng Huang, Guoyin Kai, Keli Chen, Juan Li
Summary: The results showed that the flavonoid extract TF and its main constituent AM alleviate gout arthritis through the suppression of the NLRP3/ASC/Caspase-1 axis.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yana Y. Toporkova, Elena K. Askarova, Svetlana S. Gorina, Lucia S. Mukhtarova, Alexander N. Grechkin
Summary: This study describes the cloning and catalytic properties of three CYP74L genes in Selaginella moellendorffii, showing that they exhibit different activities towards different types of hydroperoxides. The study also reveals the complex oxylipin patterns in Selaginella moellendorffii.
Article
Biochemistry & Molecular Biology
Irene Rosa-Diaz, M. Estrella Santamaria, Juan Manuel Acien, Isabel Diaz
Summary: Jasmonates play an important role in plant defense, but the role of JA derivatives in the plant-pest interaction is not well studied. This study focused on the JA catabolism and its impact on plant responses to spider mite infestation. The JAO2 gene, responsible for the hydroxylation of JA, was found to be up-regulated in response to mite infestation. The impairment of JA oxidation in jao2 mutant lines reduced defensive responses and resulted in lower mite fecundity rates.
Article
Engineering, Chemical
Jie Lei, Yiming Wang, Weiwei Li, Shaobin Fu, Jinquan Zhou, Demin Lu, Chunhua Wang, Xiaona Sheng, Maosheng Zhang, Shiji Xiao, Chengxin Sun, Gang Wang
Summary: In this study, ultrasound-assisted natural deep eutectic solvents (DES) were used to efficiently and eco-friendly extract total flavonoids (TF) from Selaginella moellendorffii. The optimal DES was choline chloride-lactic acid (ChCl-Lac). Response surface methodology (RSM) was employed to obtain the highest TF content, resulting in an TF content of 5.72 +/- 0.13 mg/g. DESUAE not only saved time but also increased TF content by nearly 2-3 times compared to other extraction methods. Furthermore, the TF extract exhibited potent antioxidant activities and antimicrobial activity against six bacteria, as well as inhibition effects on the growth rate of cancer cells.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Plant Sciences
Aimee N. Uyehara, Angel R. Del Valle-Echevarria, Charles T. Hunter, Hilde Nelissen, Kirin Demuynck, James F. Cahill, Zachary Gorman, Georg Jander, Michael G. Muszynski
Summary: Plant organ growth is influenced by the interaction between cell division and cell expansion, which is regulated by multiple hormones. In this study, we found that the perception of cytokinin (CK) can reduce leaf size and growth rate by decreasing cell division. Furthermore, we demonstrated that the increased jasmonic acid (JA) content in the Hsf1 maize mutant, which hypersignals CK, inhibits cell division. Treatment with exogenous JA also decreased leaf size and growth rate in wild-type seedlings, while JA-deficient maize mutants exhibited increased leaf size and growth rate.
Article
Biochemistry & Molecular Biology
Ahmed Alsolami, Amina I. Dirar, Emadeldin Hassan E. Konozy, Makarim El-Fadil M. Osman, Mohanad A. Ibrahim, Khalid Farhan Alshammari, Fawwaz Alshammari, Meshari Alazmi, Kamaleldin B. Said
Summary: Researchers discovered novel Hevein-like lectins from plants that have anti-SARS-CoV-2 activity. Through simulations, Smo99732 was found to have the most stable binding with the virus and could potentially be developed as a new antiviral drug.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Caroline Lelarge-Trouverie, Mathias Cohen, Lug Tremulot, Frank Van Breusegem, Amna Mhamdi, Graham Noctor
Summary: Through the study of the cat2 mutant in Arabidopsis, which lacks the major leaf isoform of catalase, we are able to investigate the potential impact of intracellular H2O2 on plant function. Our analysis focused on the salicylic acid and jasmonic acid pathways reveals metabolic signatures associated with oxidative stress-induced signaling via these defense hormones. We also identify specific enzymes and genes involved in the glucosylation of SA and the production of dihydroxybenzoic acid glycosides.
FREE RADICAL BIOLOGY AND MEDICINE
(2023)
Article
Biochemistry & Molecular Biology
Gloria Serrano-Bueno, Pedro de Los Reyes, Andrea Chini, Gabriel Ferreras-Garrucho, Victor Sanchez De Medina-Hernandez, Marta Boter, Roberto Solano, Federico Valverde
Summary: In Arabidopsis, the regulatory gene CONSTANS (CO) controls photoperiodic flowering, while floral organ senescence is regulated by jasmonates (JAs). This study shows that CO protein accumulates in Arabidopsis flowers and displays a diurnal pattern in floral organs. Altering CO expression affects flower senescence and abscission by interfering with JA response. CO interacts with JAZ3 and inhibits its repression activity, leading to activation of transcription factors involved in promoting flower senescence. In addition, CO, JAZ3, and COI1 form a protein complex that promotes degradation of CO and JAZ3 in the presence of JAs.
Article
Biochemistry & Molecular Biology
Yupu Huang, Sheliang Wang, Chuang Wang, Guangda Ding, Hongmei Cai, Lei Shi, Fangsen Xu
Summary: The study suggests that under low boron conditions, jasmonic acid synthesis increases in Arabidopsis thaliana, impacting plant growth. Experimental results show that JA signaling negatively regulates plant growth, and ERF018, a low-boron responsive transcription factor, activates the expression of JA biosynthesis genes, leading to stunted plant growth.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2021)
Review
Plant Sciences
Isadora Bischoff Nunes, Paul H. Goodwin
Summary: The Ilyonectria radicicola species complex contains soilborne necrotrophic plant pathogens, with I. mors-panacis being the most aggressive to ginseng roots. Infected roots show severe root rot, while leaves and stems also exhibit symptoms. Aggressive Ilyonectria species suppress host defense mechanisms, allowing for extensive colonization. Genetic approaches are needed to further understand the host-pathogen interactions.
Article
Forestry
Tingting Sun, Junke Zhang, Qiang Zhang, Xingliang Li, Minji Li, Yuzhang Yang, Jia Zhou, Qinping Wei, Beibei Zhou
Summary: This study analyzed the responses of apple plants to drought stress under AA treatment, and the results showed that AA treatment can improve drought tolerance in apple plants. Higher levels of chlorophyll and carotenoids were found, and the levels of ABA, JA, and methyl jasmonate were increased under AA treatment. Transcriptomic profiling identified key biological pathways involved in metabolism, MAPK signaling, plant hormone signal transduction, and secondary metabolite biosynthesis under different drought conditions.
Review
Plant Sciences
Koichi Yoneyama, Xiaonan Xie, Kaori Yoneyama, Takaya Kisugi, Takahito Nomura, Yoshifunni Nakatani, Kohki Akiyama, Christopher S. P. McErlean
JOURNAL OF EXPERIMENTAL BOTANY
(2018)
Article
Plant Sciences
Kaori Yoneyama, Narumi Mori, Tomoyasu Sato, Akiyoshi Yoda, Xiaonan Xie, Masanori Okamoto, Masashi Iwanaga, Toshiyuki Ohnishi, Hisashi Nishiwaki, Tadao Asami, Takao Yokota, Kohki Akiyama, Koichi Yoneyama, Takahito Nomura
Correction
Plant Sciences
Koichi Yoneyama, Xiaonan Xie, Kaori Yoneyama, Takaya Kisugi, Takahito Nomura, Yoshifumi Nakatani, Kohki Akiyama, Christopher S. P. McErlean
JOURNAL OF EXPERIMENTAL BOTANY
(2019)
Review
Agronomy
Koichi Yoneyama, Xiaonan Xie, Kaori Yoneyama, Takahito Nomura, Ikuo Takahashi, Tadao Asami, Narumi Mori, Kohki Akiyama, Miyuki Kusajima, Hideo Nakashita
PEST MANAGEMENT SCIENCE
(2019)
Article
Biochemistry & Molecular Biology
Satoko Yoshida, Seungill Kim, Eric K. Wafula, Jaakko Tanskanen, Yong-Min Kim, Loren Honaas, Zhenzhen Yang, Thomas Spallek, Caitlin E. Conn, Yasunori Ichihashi, Kyeongchae Cheong, Songkui Cui, Joshua P. Der, Heidrun Gundlach, Yuannian Jiao, Chiaki Hori, Juliane K. Ishida, Hiroyuki Kasahara, Takatoshi Kiba, Myung-Shin Kim, Namjin Koo, Anuphon Laohavisit, Yong-Hwan Lee, Shelley Lumba, Peter McCourt, Jenny C. Mortimer, J. Musembi Mutuku, Takahito Nomura, Yuko Sasaki-Sekimoto, Yoshiya Seto, Yu Wang, Takanori Wakatake, Hitoshi Sakakibara, Taku Demura, Shinjiro Yamaguchi, Koichi Yoneyama, Ri-ichiroh Manabe, David C. Nelson, Alan H. Schulman, Michael P. Timko, Claude W. DePamphilis, Doil Choi, Ken Shirasu
Article
Plant Sciences
Kaori Yoneyama, Xiaonan Xie, Takahito Nomura, Koichi Yoneyama
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Biochemistry & Molecular Biology
Narumi Mori, Aika Sado, Xiaonan Xie, Kaori Yoneyama, Kei Asami, Yoshiya Seto, Takahito Nomura, Shinjiro Yamaguchi, Koichi Yoneyama, Kohki Akiyama
Article
Plant Sciences
Akiyoshi Yoda, Narumi Mori, Kohki Akiyama, Mayu Kikuchi, Xiaonan Xie, Kenji Miura, Kaori Yoneyama, Kanna Sato-Izawa, Shinjiro Yamaguchi, Koichi Yoneyama, David C. Nelson, Takahito Nomura
Summary: The LGS1 gene in sorghum is involved in the synthesis of substances that affect seed germination in root parasitic plants, proposing a novel SL biosynthetic pathway involving sulfo group catalysis and cyclization of 18-OH-CLA.
Article
Plant Sciences
Shmuel Galili, Joseph Hershenhorn, Evgeny Smirnov, Koichi Yoneyama, Xiaonan Xie, Orit Amir-Segev, Aharon Bellalou, Evgenia Dor
Summary: A mutant chickpea line CCD7M14 was found to be highly resistant to broomrape, due to a point mutation in the Carotenoid Cleavage Dioxygenase 7 (CCD7) gene resulting in the absence of strigolactones in root exudates. LC/MS/MS analysis and sequence analysis revealed the mechanism of resistance and the impact of the mutation on chickpea phenotype.
Article
Biochemistry & Molecular Biology
Miyuki Kusajima, Moeka Fujita, Khamsalath Soudthedlath, Hidemitsu Nakamura, Koichi Yoneyama, Takahito Nomura, Kohki Akiyama, Akiko Maruyama-Nakashita, Tadao Asami, Hideo Nakashita
Summary: Strigolactones are phytohormones that play multiple roles in plants, including regulation of branching and interactions with fungi and weeds. They have also been found to be involved in plant responses to abiotic and biotic stresses. This study analyzed the effects of Strigolactones on plant resistance to diseases induced by salicylic acid signaling.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Moeka Fujita, Miyuki Kusajima, Masatomo Fukagawa, Yasuko Okumura, Masami Nakajima, Kohki Akiyama, Tadao Asami, Koichi Yoneyama, Hisaharu Kato, Hideo Nakashita
Summary: Research has shown that mycorrhizal colonization can enhance plant resistance against both fungal and bacterial pathogens, and prime the plant immune system for a more rapid and strong response to pathogen attack.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Hinako Miura, Ryota Ochi, Hisashi Nishiwaki, Satoshi Yamauchi, Xiaonan Xie, Hidemitsu Nakamura, Koichi Yoneyama, Kaori Yoneyama
Summary: This study discovered that isothiocyanates (ITCs) have a stimulating effect on the germination of Phelipanche seeds, especially when their structures are optimized. However, the efficacy of ITCs varies among different species of Phelipanche seeds.
Article
Biochemistry & Molecular Biology
Kaori Yoneyama, Xiaonan Xie, Takahito Nomura, Koichi Yoneyama, Tom Bennett
Summary: Plants have evolved mechanisms to detect neighboring plants and adapt to environmental and neighbor density limitations, by perceiving and utilizing the signaling molecules produced by neighboring plants.
Meeting Abstract
Biochemistry & Molecular Biology
M. Kusajima, H. Nakashita, K. Yoneyama, K. Akiyama, T. Nomura, T. Asami
MOLECULAR PLANT-MICROBE INTERACTIONS
(2019)
Meeting Abstract
Biochemistry & Molecular Biology
M. Fujita, M. Kusajima, K. Akiyama, K. Yoneyama, T. Asami, H. Kato, H. Nakashita
MOLECULAR PLANT-MICROBE INTERACTIONS
(2019)