Article
Cell Biology
Yusaku Yariuchi, Takashi Okamoto, Yoshiteru Noutoshi, Taku Takahashi
Summary: Polyamine metabolism in plants is controlled by multiple genes which are differentially regulated under different physiological conditions. Our study in Arabidopsis thaliana revealed that most genes in polyamine metabolism are not responsive to exogenous polyamines, but there is a difference in response to polyamines between Arabidopsis and rice, as shown by the induction of OsPAO6 gene. These results provide a framework for further study of regulatory modules controlling the expression of each polyamine metabolic gene.
Article
Biochemistry & Molecular Biology
Varvara Podia, Dimitris Chatzopoulos, Dimitra Milioni, Dimitrios J. J. Stravopodis, Irene Dervisi, Andreas Roussis, Kalliopi A. A. Roubelakis-Angelakis, Kosmas Haralampidis
Summary: Polyamine oxidases (PAOs) are involved in various physiological and developmental processes, as well as responses to stress conditions. This study investigated the transcriptional regulation of AtPAO3 using a GUS reporter-aided promoter deletion approach. The results revealed that the integrity of an upstream open reading frame (uORF) and a short inter-cistronic sequence in AtPAO3 is crucial for proper gene expression. Additionally, multiple environmental factors and hormonal signals were found to regulate the transcription of AtPAO3.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Houjun Zhou, Haiman Ge, Jiahong Chen, Xueqin Li, Lei Yang, Hongxia Zhang, Yuan Wang
Summary: This study reveals the mechanism by which high concentration of SA affects gravitropic root growth and root hair development in plants. The regulation of PIN2 gene transcription and endocytosis of PIN2 protein are involved in this process. Exogenous SA application inhibits gravitropic root growth and root hair development by affecting auxin accumulation and PIN2 distribution.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Hong-Yun Zeng, Yu Liu, Ding-Kang Chen, He-Nan Bao, Li-Qun Huang, Jian Yin, Yi-Li Chen, Shi Xiao, Nan Yao
Summary: The study revealed that EDS1 and PAD4 are involved in plant sphingolipid metabolism and associated cell death.
Article
Biochemistry & Molecular Biology
Baihong Zhang, Shuqin Huang, Zetian Guo, Yixuan Meng, Xue Li, Yuzhen Tian, Wenli Chen
Summary: This study reveals that salicylic acid promotes carbon starvation-induced leaf senescence by inhibiting autophagy via NPR1.
Article
Microbiology
Mengfei Ji, Jinping Zhao, Kelei Han, Weijun Cui, Xinyang Wu, Binghua Chen, Yuwen Lu, Jiejun Peng, Hongying Zheng, Shaofei Rao, Guanwei Wu, Jianping Chen, Fei Yan
Summary: Viruses counteract plant antiviral immunity by interfering with the crucial hormone jasmonic acid biosynthesis and signaling pathway through interaction with a conserved chloroplast protein, cpSRP54. This mechanism, involving suppression of cpSRP54 function, may be a common strategy used by viruses to enhance viral infection by suppressing jasmonic acid biosynthesis.
Article
Plant Sciences
Olena Zamora, Sebastian Schulze, Tamar Azoulay-Shemer, Helen Parik, Jaanika Unt, Mikael Brosche, Julian Schroeder, Dmitry Yarmolinsky, Hannes Kollist
Summary: ABA, CO2, and light are major regulators of rapid guard cell signaling in Arabidopsis and tomato plants, while JA and SA play only minor roles in the overall plant stomatal response to environmental cues.
Article
Plant Sciences
Hong-Yun Zeng, He-Nan Bao, Yi-Li Chen, Ding-Kang Chen, Kun Zhang, Shuai-Kang Liu, La Yang, Yong-Kang Li, Nan Yao
Summary: This study reveals that two classes of ceramide synthases differentially regulate EDS1/PAD4-dependent programmed cell death and immunity in Arabidopsis by subtly controlling long-chain bases and ceramides.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Ke Yu, Wenqi Yang, Bing Zhao, Ling Wang, Pan Zhang, Yi Ouyang, Yuankai Chang, Guoqingzi Chen, Junli Zhang, Shujie Wang, Xiao Wang, Panpan Wang, Wei Wang, Jeremy A. Roberts, Kun Jiang, Luis A. J. Mur, Xuebin Zhang
Summary: This study reveals a novel regulatory mechanism of plant hormones, which negatively regulates the synthesis of salicylic acid through post-translational regulation, thereby affecting plant growth and immune activation.
Article
Biochemical Research Methods
Petra Junkova, Michaela Neubergerova, Tetiana Kalachova, Olga Valentova, Martin Janda
Summary: The study investigated the impact of PI4K beta 1/PI4K beta 2 deficiency and SA level on the proteome of plant microsomes, identifying changes in protein levels between genotypes. The results indicate that increased SA concentration affects the levels of specific proteins and suggests potential connections between the SA pathway and clathrin-independent endocytosis/exocytosis. Additionally, while the absence of PI4K beta 1/PI4K beta 2 itself had minimal effect on the microsomal proteome, it enhanced proteome changes when the SA pathway was modulated.
Article
Plant Sciences
Lennart Mohnike, Weijie Huang, Brigitte Worbs, Kirstin Feussner, Yuelin Zhang, Ivo Feussner
Summary: This study identified three novel metabolites of N-hydroxy pipecolic acid (NHP) in Arabidopsis thaliana leaves and investigated their formation mechanism and functions. MeNHP was found to be a storage or transport form of NHP, while NHP-OGlc-Hex and NHP-OGlc-derivative may have other physiological functions.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Qiyu Zhao, Chunxiu Gu, Yuehang Sun, Guangzhe Li, Lin-Lin Li, Lin Hao
Summary: The study revealed that the regulatory role of salicylic acid (SA) in plants under cadmium (Cd) stress involves root biological processes. Plants transformed with ThenahG gene displayed enhanced tolerance, while mutants with high endogenous SA were more sensitive to Cd stress. This tolerance was associated with antioxidative defense, flavonoid biosynthesis, metal chelation and sequestration, and cell wall modification in the roots.
JOURNAL OF PLANT GROWTH REGULATION
(2021)
Article
Biochemistry & Molecular Biology
Beatriz Val-Torregrosa, Mireia Bundo, Mani Deepika Mallavarapu, Tzyy-Jen Chiou, Victor Flors, Blanca San Segundo
Summary: This study reveals the important role of NLA gene in Arabidopsis immunity and its connection to phosphorus signaling. Loss-of-function of NLA and overexpression of MIR827 enhance phosphorus uptake and resistance to fungal infection in plants.
Article
Multidisciplinary Sciences
Sung-Hwan Cho, Katalin Toth, Daewon Kim, Phuc H Vo, Chung-Ho Lin, Pubudu P. Handakumbura, Albert Rivas Ubach, Sterling Evans, Ljiljana Pasa-Tolic, Gary Stacey
Summary: The mevalonate pathway is crucial for cellular processes in both animals and plants. In plants, it affects growth, development, and response to stress. The interaction between mevalonate kinase and extracellular ATP receptor P2K1, with phosphorylation impacting plant metabolism, emphasizes the significance of purinergic signaling and the role of eATP in influencing plant metabolic pathways.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Nikoleta Rubil, Tetiana Kalachova, Thure Pavlo Hauser, Lenka Burketova
Summary: This study investigates the activation of salicylic acid (SA) and jasmonic acid (JA) signals in Arabidopsis leaves during infestation by cabbage aphid in high spatio-temporal resolution. The results show a rapid induction of SA and JA signaling markers in cells surrounding stylet puncture, colocalizing with callose deposition. The study provides detailed insights into the spatio-temporal complexity of plant defense activation during specialist aphid attack.
MOLECULAR PLANT-MICROBE INTERACTIONS
(2022)
Article
Plant Sciences
Juan Manuel Vilas, Fernando Matias Romero, Franco Ruben Rossi, Maria Marina, Santiago Javier Maiale, Pablo Ignacio Calzadilla, Fernando Luis Pieckenstain, Oscar Adolfo Ruiz, Andres Garriz
JOURNAL OF PLANT PHYSIOLOGY
(2018)
Article
Biochemistry & Molecular Biology
Maria Marina, Fernando M. Romero, Natalia M. Villarreal, Andres J. Medina, Andres Garriz, Franco R. Rossi, Gustavo A. Martinez, Fernando L. Pieckenstain
PLANT MOLECULAR BIOLOGY
(2019)
Article
Mycology
Paulina Vignatti, Maria E. Gonzalez, Edgardo C. Jofre, Hernando J. Bolivar-Anillo, Javier Moraga, Muriel Viaud, Isidro G. Collado, Fernando L. Pieckenstain
Article
Biochemistry & Molecular Biology
Francisco Ignacio Jasso-Robles, Maria Elisa Gonzalez, Fernando Luis Pieckenstain, Jose Miguel Ramirez-Garcia, Maria de la Luz Guerrero-Gonzalez, Juan Francisco Jimenez-Bremont, Margarita Rodriguez-Kessler
Article
Plant Sciences
Maria Belen Colavolpe, Natalia Marina Villarreal, Silvia Estefania Langer, Fernando Matias Romero, Gustavo Adolfo Martinez, Adesh Saini, Oscar Adolfo Ruiz, Maria Marina
Summary: Burkholderia sp. AU4i, previously isolated from pea, acts as a plant growth-promoting rhizobacteria (PGPR) by promoting Arabidopsis growth and reducing lesion areas caused by necrotrophic pathogens. AU4i induces expression of jasmonate responsive genes and antioxidant compounds accumulation independently of plant defense signaling pathways.
JOURNAL OF PLANT GROWTH REGULATION
(2021)
Article
Multidisciplinary Sciences
Jose Maria Chain, Esteban Tubert, Corina Graciano, Luis Nazareno Castagno, Marina Recchi, Fernando Luis Pieckenstain, Maria Julia Estrella, Gustavo Gudesblat, Gabriela Amodeo, Irene Baroli
SCIENTIFIC REPORTS
(2020)
Review
Agriculture, Multidisciplinary
Luis N. Castagno, Analia I. Sannazzaro, Maria E. Gonzalez, Fernando L. Pieckenstain, Maria J. Estrella
Summary: Phosphorus is essential for plant growth and development, but its bioavailability to plants is often suboptimal in most soils. Rhizospheric microbiota play a key role in facilitating phosphorus nutrition, offering an environmentally-friendly alternative to chemical fertilisation.
ANNALS OF APPLIED BIOLOGY
(2021)
Review
Agriculture, Multidisciplinary
Maria E. Gonzalez, Francisco I. Jasso-Robles, Emmanuel Flores-Hernandez, Margarita Rodriguez-Kessler, Fernando L. Pieckenstain
Summary: This review emphasizes the importance of polyamines in plant immunity and their regulation under biotic stress, with a focus on the intracellular localization of polyamine metabolism proteins/enzymes and the impact of pathogen effector proteins on plant polyamine metabolism.
ANNALS OF APPLIED BIOLOGY
(2021)
Article
Plant Sciences
Xiaomu Zhang, Pramod Khadka, Patryk Puchalski, Joss D. Leehan, Franco R. Rossi, Sakiko Okumoto, Guillaume Pilot, Cristian H. Danna
Summary: The study reveals the mechanism by which MAMP perception in Arabidopsis modulates extracellular amino acid (AA) concentrations and suppresses bacterial growth through the regulation of AA transport activity.
Article
Mycology
M. Dinolfo, M. Martinez, E. Castanares, L. S. Vanzetti, F. Rossi, S. A. Stenglein, A. F. Arata
Summary: This study evaluated the interaction between Fusarium poae and wheat, as well as the potential management strategy using methyl-jasmonate (MeJA) against this important pathogen. The results demonstrated that the effect of MeJA treatment on F. poae growth was isolate-dependent. MeJA treatment reduced fungal biomass in the susceptible wheat cultivar, but no significant differences were observed in the resistant cultivar. Furthermore, the expression of resistance-related genes was induced by F. poae inoculation, and the application of MeJA increased their expressions in resistant cultivars.