Article
Plant Sciences
Xiaoxuan Zhu, Chao Tang, Qionghou Li, Xin Qiao, Xian Li, Yilin Cai, Peng Wang, Yangyang Sun, Hua Zhang, Shaoling Zhang, Juyou Wu
Summary: This study characterized the pectin methylesterase inhibitor gene family in seven Rosaceae species and identified three genes that regulate pollen tube growth in pear. Quantitative real-time PCR analysis revealed that these genes are increasingly expressed during pear pollen tube growth. The results suggest that pectin methylesterase inhibitor regulates pollen tube growth by changing the distribution of methylesterified pectin in the apex.
Article
Plant Sciences
Margalida Roig-Oliver, Catherine Rayon, Romain Roulard, Francois Fournet, Josefina Bota, Jaume Flexas
Summary: This study explored the impact of pectin esterase mutants on photosynthesis in Arabidopsis thaliana, revealing significant changes in pectin content and certain physiological characteristics, which may affect photosynthesis.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Horticulture
Zhenjiang Xu, Mei Yang, Zhaoyang Li, Jian Xiao, Xueqin Yang, Hao Wang, Xiaofeng Wang
Summary: Cell wall mechanical strength is partially controlled by pectin methylesterification, which involves the action of pectin methylesterases (PMEs). In this study, the rupture of the lettuce endosperm cap during seed germination was shown to be caused by cell rupture rather than cell separation. The status of pectin methylesterification and PME activities changed during seed germination, with the endosperm cap having lower PME activities and higher pectin methylesterification compared to the radicle. Tissue-specific pectin methylesterification and PME activities were found to play a role in lettuce seed germination.
SCIENTIA HORTICULTURAE
(2022)
Review
Plant Sciences
Bastien G. Dauphin, Philippe Ranocha, Christophe Dunand, Vincent Burlat
Summary: Plant cell walls show cellular and subcellular specificities, and wall microdomains play a crucial role in macroscopic developmental processes. This study focuses on the contribution of two categories of wall-remodeling molecular actors in wall microdomains.
TRENDS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Rasha Althiab-Almasaud, Yi Chen, Elie Maza, Anis Djari, Pierre Frasse, Jean-Claude Mollet, Christian Mazars, Elisabeth Jamet, Christian Chervin
Summary: The study reveals that ethylene regulates pollen tube growth, with mutations in ethylene receptors leading to feedback control of ethylene production, affecting pollen tube growth and cell wall metabolism.
Article
Biochemistry & Molecular Biology
Lin Zheng, Yajuan Chen, Liping Ding, Ying Zhou, Shanshan Xue, Biying Li, Jianhua Wei, Hongzhi Wang
Summary: The transcription factor MYB156 controls pectic homogalacturonan-based polar stiffening in the guard cells, which enhances stomatal dynamics and response speed to various stimuli.
Article
Engineering, Environmental
Meng Ying Gao, Xun Wen Chen, Wei Xiong Huang, Li Wu, Zheng Sheng Yu, Lei Xiang, Ce Hui Mo, Yan Wen Li, Quan Ying Cai, Ming Hung Wong, Hui Li
Summary: Hydroponic experiments demonstrated that inoculation of arbuscular mycorrhizal fungi significantly improved the growth of rice under cadmium stress, while reducing cadmium accumulation in plants. The levels of pectin and hemicellulose in root cell wall increased after fungal inoculation, along with higher lignin content. Further research is needed to understand the mechanisms of cadmium fixation in root cell wall components.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Wei Xiong Huang, Xun Wen Chen, Li Wu, Zheng Sheng Yu, Meng Ying Gao, Hai Ming Zhao, Ce Hui Mo, Yan Wen Li, Quan Ying Cai, Ming Hung Wong, Hui Li
Summary: This study found significant differences in arsenic uptake and distribution between low-arsenic transferring and high-arsenic transferring cultivars of cabbage, with the former accumulating less arsenic in shoots and more in roots, specifically in the cell wall. The low-arsenic cultivar exhibited changes in root cell wall matrix chemistry, potentially influencing arsenic entry and deposition.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Agronomy
Zhuoxi Xiao, Guochao Yan, Mujun Ye, Yongchao Liang
Summary: This study revealed that silicon can alleviate aluminum-induced inhibition of cell elongation and oxidative damage in rice roots, reducing aluminum content in the cell wall. Silicon also affects pectin methylesterase activity and gene expression, thus increasing pectin methylesterification and reducing hemicellulose content in the cell wall. Overall, silicon plays a crucial role in decreasing aluminum accumulation in the root cell wall, thus mitigating aluminum stress in rice.
Article
Food Science & Technology
Aeshna Sinha, P. P. S. Gill, S. K. Jawandha, Preetinder Kaur, S. K. Grewal
Summary: This study evaluated the effect of salicylic acid enriched beeswax coatings on the softening of pear fruits. The results showed that these coatings effectively reduced mass loss, maintained fruit firmness, and delayed the increase in cell wall degrading enzyme activity.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Agronomy
Wu Qi, Tao Ye, Zhang Xiaolong, Dong Xiaoying, Xia Jixing, Shen Renfang, Zhu Xiaofang
Summary: The study demonstrates that increasing pectin methylesterase (PME) activity can facilitate the redistribution of phosphorus (P) deposited in the cell wall, alleviating P deficiency in rice. Lower methylesterification degree of pectin contributes to releasing more inorganic phosphorus, and the expression of the OsPME14 gene is related to PME activity.
Article
Cell Biology
Anna Milewska-Hendel, Katarzyna Sala, Weronika Gepfert
Summary: The increased use of nanoparticles in various industries leads to their release into the environment, where plants come into direct contact with them. Studies on the uptake of nanoparticles by plants and their effects on plant developmental processes are still insufficient. Analysis of changes in the chemical components of cell walls exposed to gold nanoparticles showed that different surface charges of nanoparticles affect the presence and distribution of specific epitopes in root cells.
Article
Plant Sciences
Jun Liu, Ian R. Willick, Hayato Hiraki, Ariana D. Forand, John R. Lawrence, George D. W. Swerhone, Yangdou Wei, Supratim Ghosh, Yeon Kyeong Lee, Jorunn E. Olsen, Bjoern Usadel, Alexandra Wormit, Markus Guenl, Chithra Karunakaran, James J. Dynes, Karen K. Tanino
Summary: Cold acclimated plants can enhance freezing survival by reducing cell wall porosity through de-methyl esterification of homogalacturonan and subsequent cross-linking with Ca(2+).
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Environmental Sciences
Jinlei Luo, Dejiang Ni, Chunlei Li, Yaru Du, Yuqiong Chen
Summary: The study found that the cell wall in tea plants is the main part where fluoride accumulates, with pectin being the main distribution area. As fluoride concentration increases, there is a significant increase in fluoride content in the cell wall, cell wall metal ion levels, and total cell wall materials. Fluoride addition can increase pectin content and demethylesterification, leading to increased absorption of metal cations and chelation of fluoride.
ENVIRONMENTAL POLLUTION
(2021)
Article
Agronomy
Sameer Dixit, Krishnappa Chandrashekar, Santosh Kumar Upadhyay, Praveen Chandra Verma
Summary: Volatile organic compounds from plant surfaces are a sustainable natural solution to combat biotic stresses. Leaf methanol, the second major volatile compound after isoprene, has been neglected for a long time but recent studies have shown its importance in development and stress responses.
Article
Plant Sciences
Eduardo Berenguer, Elena Carneros, Yolanda Perez-Perez, Carmen Gil, Ana Martinez, Pilar S. Testillano
Summary: The use of synthetic small molecule inhibitors of mammalian GSK-3 beta has been shown to improve in vitro embryogenesis efficiency in plants, promoting somatic embryogenesis by activating the BR pathway.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Editorial Material
Plant Sciences
Concepcion Gomez-Mena, David Honys, Raju Datla, Pilar S. Testillano
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Ana Claudia Silva, Virginia Ruiz-Ferrer, Sebastian Y. Muller, Clement Pellegrin, Patricia Abril-Urias, Angela Martinez-Gomez, Almudena Gomez-Rojas, Eduardo Berenguer, Pilar S. Testillano, Maria Fe Andres, Carmen Fenoll, Sebastian Eves-van Den Akker, Carolina Escobar
Summary: This study revealed that early galls induced by root-knot nematodes are hypermethylated, with giant cells being the major contributors. Medium/late galls showed no global increase in DNA methylation but had differentially methylated regions redistributed. DNA methylation and demethylation mutants exhibited impaired resistance/tolerance to nematodes, with siRNAs accumulating at hypermethylated DMRs, potentially involved in repression of retrotransposons.
Letter
Plant Sciences
Nicolas Max Doll, Eduardo Berenguer, Jekaterina Truskina, Gwyneth Ingram
Editorial Material
Plant Sciences
Sophie Brunel-Muguet, Ramesh R. Vetukuri, Pilar S. Testillano
PHYSIOLOGIA PLANTARUM
(2022)
Review
Plant Sciences
Dolores Rita Agius, Aliki Kapazoglou, Evangelia Avramidou, Miroslav Baranek, Elena Carneros, Elena Caro, Stefano Castiglione, Angela Cicatelli, Aleksandra Radanovic, Jean-Paul Ebejer, Daniel Gackowski, Francesco Guarino, Andrea Gulyas, Norbert Hidvegi, Hans Hoenicka, Vera Inacio, Frank Johannes, Erna Karalija, Michal Lieberman-Lazarovich, Federico Martinelli, Stephane Maury, Velimir Mladenov, Leonor Morais-Cecilio, Ales Pecinka, Eleni Tani, Pilar S. Testillano, Dimitar Todorov, Luis Valledor, Valya Vassileva
Summary: Epigenetic modifications, particularly DNA methylation, play a crucial role in preserving genome integrity and regulating gene expression, impacting growth, development, and stress response in plants. Detecting DNA methylation marks is essential for understanding these processes and enhancing crop productivity and stress resistance. This review provides an overview of different methods for detecting plant DNA methylation and compares their efficacy between model and crop plants. It also highlights the strengths and limitations of each method and emphasizes the importance of considering technical and biological factors. Overall, this review will assist scientists in selecting an appropriate DNA methylation profiling method.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Elena Carneros, Jorge Sanchez-Munoz, Yolanda Perez-Perez, Beatriz Pintos, Aranzazu Gomez-Garay, Pilar S. Testillano
Summary: The synthesis and signaling pathway of endogenous auxin play a key role in the induction and multiplication of somatic embryogenesis, as well as the development of cork oak embryos.
Article
Forestry
Aranzazu Gomez-Garay, Jose A. Manzanera, Raquel del Campo, Beatriz Pintos
Summary: The aim of this study was to investigate the potential of Bacillus amyloliquefaciens as a biocontrol agent against Phytophthora cinnamomi infection in cork oak. In vitro and in planta experiments revealed the inhibitory effects of B. amyloliquefaciens on P. cinnamomi growth and its biocontrol efficacy. The study emphasized the distinct response of cork oak plantlets to the pathogen and underscored the importance of genetic variability for disease management.
Article
Forestry
P. Krokene, I Borja, E. Carneros, T. D. Eldhuset, N. E. Nagy, D. Volarik, R. Gebauer
Summary: Drought-induced mortality is a major direct effect of climate change on tree health. However, drought can also indirectly affect trees by altering their susceptibility to pathogens. This study investigated the combined effects of drought and pathogen infection on the growth, pathogen resistance, and gene expression in Norway spruce trees. The results showed that severe drought stress decreased tree resistance to pathogen infection, while mild drought stress increased resistance by upregulating resistance-related genes. Given the expected increase in drought episodes due to climate change, further research is needed to understand how these stressors interact and influence tree susceptibility to pests and pathogens.
Article
Agronomy
Jose Maria Alonso de Robador, Nora Ortega Perez, M. Teresa Sanchez-Ballesta, M. Luisa Tello Mariscal, Beatriz Pintos Lopez, Arancha Gomez-Garay
Summary: This article emphasizes the importance of yeast Meyerozyma guilliermondii as a biological control agent in eliciting defensive responses in vine plants, and is supported by comprehensive physiological, proteomic, and transcriptomic analyses. The results demonstrate that the BCA M. guilliermondii can induce enhanced defensive responses, as reflected in the regulation of key proteins.
Article
Nutrition & Dietetics
Angel Gil, Rafael Urrialde, Gregorio Varela-Moreiras
Summary: The concern over sugar content in food and beverages due to its association with chronic non-communicable diseases is increasing. There is confusion surrounding concepts such as free sugars, intrinsic or endogenous sugars, and added sugars. Reference intakes for added sugars should be established and declared on food product labels to facilitate public health measures aiming to reduce their intake.
NUTRICION HOSPITALARIA
(2021)