Article
Plant Sciences
Wei Wang, Sonja Viljamaa, Ondrej Hodek, Thomas Moritz, Totte Niittyla
Summary: The role of SUS in cellulose biosynthesis in Arabidopsis has been refuted, as alternative UDP-glucose biosynthesis pathways were found to be employed.
Article
Plant Sciences
Hiroyuki Ishida, Yu Okashita, Hiromi Ishida, Makoto Hayashi, Masanori Izumi, Amane Makino, Nazmul H. Bhuiyan, Klaas J. van Wijk
Summary: Chloroplasts, and plastids in general, are major sources of carbon and nitrogen recycling, being partially degraded by piecemeal autophagy. A mutant, gfs9-5, with defective membrane-trafficking factor GFS9, accumulates plastid bodies (PBs) and shows increased autophagic flux, suggesting a potential connection between GFS9 and autophagy in the process of piecemeal plastid autophagy.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Plant Sciences
Ryuuichi D. Itoh, Kohdai P. Nakajima, Shun Sasaki, Hiroki Ishikawa, Yusuke Kazama, Tomoko Abe, Makoto T. Fujiwara
Summary: Stromules are dynamic membrane-bound tubular structures emanating from plastids in green plants, with potential physiological and developmental roles in stress responses and plant development. A mutant, suba1, with abnormal stromule formation in non-mesophyll tissues was characterized, revealing altered plastid morphology, impaired chloroplast pigmentation, and aberrant lipid droplet accumulation. The mutated gene, TGD5, is involved in ER-to-plastid lipid trafficking, suggesting distinct mechanisms maintaining plastid morphology between mesophyll and non-mesophyll plastids.
Article
Plant Sciences
Niklas Reichelt, Arthur Korte, Markus Krischke, Martin J. Mueller, Daniel Maag
Summary: High temperature stress affects plant growth and reproduction, but plants also have physiological responses to protect against heat damage. This study investigated the variation in raffinose accumulation as a marker for temperature responsiveness in 250 Arabidopsis thaliana accessions. Genome-wide association studies identified five genomic regions associated with this trait. Functional analysis confirmed the role of TREHALOSE-6-PHOSPHATE SYNTHASE 1 (TPS1) in warm temperature-dependent raffinose synthesis.
PLANT CELL AND ENVIRONMENT
(2023)
Correction
Multidisciplinary Sciences
Rocio Soledad Tognacca, Monica Carabelli, Giorgio Morelli, Ida Ruberti, Javier Francisco Botto
Summary: A correction to this paper has been published and can be accessed through a link at the top of the paper.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Daniel Laloum, Sahar Magen, Yoram Soroka, Tamar Avin-Wittenberg
Summary: This study reveals the complex interplay between autophagy and sugar signaling in plants. Autophagy-deficient plants accumulate sugars under carbon starvation conditions and autophagy plays an important role in the response to excess exogenous sucrose. Proteomic analysis showed an accumulation of proteins essential for root growth in autophagy mutants under sucrose excess conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Chemistry, Applied
Holly Allen, Donghui Wei, Ying Gu, Shundai Li
Summary: This review summarizes the major hypotheses and advancements made in the past century regarding the regulation of cellulose biosynthesis, with a focus on Arabidopsis thaliana.
CARBOHYDRATE POLYMERS
(2021)
Article
Plant Sciences
Ya-Jie Wang, Xing-Hou Zhen, Yang-Jiao Zhou, Yun-Lin Wang, Jing-Yi Hou, Xin Wang, Rui-Mei Li, Jiao Liu, Xin-Wen Hu, Meng-Ting Geng, Yuan Yao, Jian-Chun Guo
Summary: Alkaline/neutral invertase (A/N-INV) plays an important role in plant growth and development, starch synthesis, and other plant-life activities. By studying cassava and Arabidopsis, researchers found that MeNINV1 gene is mainly expressed in fibrous roots and tuber root phloem of cassava, and overexpressing MeNINV1 in Arabidopsis promotes plant growth but does not affect its resistance to abiotic stress.
Article
Biochemistry & Molecular Biology
Helene Roehricht, Joram Schwartzmann, Etienne H. Meyer
Summary: The mitochondrial ATP synthase, responsible for producing the energy needed for eucaryotic life, is structurally similar across species but exhibits some variations in plant-specific subunits. While assembly of this enzyme has been extensively studied in bacteria, yeast, and mammals, little is known about its assembly in plants. Through complexome profiling, researchers have identified assembly intermediates and proposed a model for the assembly pathway of plant mitochondria's ATP synthase, revealing that plant-specific subunits are also present in other organisms. This study demonstrates that the subunit composition and assembly pathway of plant mitochondria's ATP synthase are largely conserved with other mitochondrial enzymes.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
(2021)
Article
Plant Sciences
Franziska Fichtner, Francois F. Barbier, Maria G. Annunziata, Regina Feil, Justyna J. Olas, Bernd Mueller-Roeber, Mark Stitt, Christine A. Beveridge, John E. Lunn
Summary: Tre6P is expressed in axillary buds and vasculature in Arabidopsis, and it plays a role in regulating shoot branching by connecting with systemic regulation via FT. Direct genetic evidence shows that Tre6P has a local role in regulating axillary bud outgrowth within the buds themselves.
Article
Genetics & Heredity
Luca Tadini, Nicolaj Jeran, Guido Domingo, Federico Zambelli, Simona Masiero, Anna Calabritto, Elena Costantini, Sara Forlani, Milena Marsoni, Federica Briani, Candida Vannini, Paolo Pesaresi
Summary: This study investigates the chloroplast quality-control mechanisms by manipulating the expression of two nuclear genes encoding plastid ribosomal proteins PRPS1 and PRPL4. It reveals that increased expression of PRPS1 leads to chloroplast degradation and early flowering as a stress-escaping strategy, while overaccumulation of PRPL4 protein is regulated by increasing plastid chaperones and components of the unfolded protein response (cpUPR) regulatory mechanism. This research advances our understanding of molecular mechanisms underlying chloroplast retrograde communication and provides new insight into cellular responses to impaired plastid protein homeostasis.
Article
Plant Sciences
Yanwu Guo, Sara Nassar, Lanqing Ma, Guanping Feng, Xing Li, Mo Chen, Tuanyao Chai, Iman A. M. Abdel-Rahman, Till Beuerle, Ludger Beerhues, Hong Wang, Benye Liu
Summary: Plant anthranoids are synthesized by octaketide synthase (OKS), a key enzyme which catalyzes the formation of anthranoids in plants such as Polygonum cuspidatum. When OKS is expressed in Arabidopsis thaliana, it results in the production of the anthranoid emodin in roots, inhibiting root growth. Co-incubation experiments suggest that OKS may interact with additional factors for anthranoid assembly in transgenic plants.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Plant Sciences
Farzaneh Yazdanpanah, Leo A. J. Willems, Hanzi He, Henk W. M. Hilhorst, Leonie Bentsink
Summary: Seed dormancy is a complex trait controlled by genetic and environmental factors, and it is affected by nitrate and AtAAH. Nitrate reduces seed dormancy, while AtAAH and other genes are up-regulated in dormant seeds. Ataah mutant seeds have higher dormancy and accumulate high levels of uric acid, allantoin, and urea.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Plant Sciences
Tengfei Liu, Md Abu Kawochar, Shahnewaz Begum, Enshuang Wang, Tingting Zhou, Shenglin Jing, Tiantian Liu, Liu Yu, Bihua Nie, Botao Song
Summary: Cold-induced sweetening is a severe issue in the potato processing industry. This study identifies StTST1 as the sugar transporter with the highest expression in potato tubers during postharvest cold storage. Knockdown of StTST1 reduces sugar accumulation and improves the frying quality of cold-stored tubers. Suppression of StTST1 promotes starch synthesis and inhibits starch degradation, possibly through the down-regulation of beta-amylase StBAM1. These findings provide a new strategy to improve the quality of cold-stored potatoes and reduce acrylamide content in potato chips.
HORTICULTURE RESEARCH
(2023)
Article
Plant Sciences
S. Hoeller, H. Kuepper, D. Brueckner, J. Garrevoet, K. Spiers, G. Falkenberg, E. Andresen, E. Peiter
Summary: Overexpression of MTP8 significantly increases Mn tolerance of seeds during imbibition, while not causing consistent increase in Mn and Fe accumulation in mature seeds, or changing the allocation pattern of these metals. Zinc concentrations, however, were consistently increased in bulk samples.
Article
Plant Sciences
Thomas James Roscoe, Virginie Vaissayre, Gael Paszkiewicz, Fernando Clavijo, Zsolt Kelemen, Caroline Michaud, Loic Lepiniec, Bertrand Dubreucq, Dao-Xiu Zhou, Martine Devic
PLANT AND CELL PHYSIOLOGY
(2019)
Article
Plant Sciences
Olivier Coen, Jing Lu, Wenjia Xu, Delphine De Vos, Christine Pechoux, Frederic Domergue, Damaris Grain, Loic Lepiniec, Enrico Magnani
Article
Biochemistry & Molecular Biology
Charlotte Miller, Rachel Wells, Neil McKenzie, Martin Trick, Joshua Ball, Abdelhak Fatihi, Bertrand Dubreucq, Thierry Chardot, Loic Lepiniec, Michael W. Bevan
Article
Plant Sciences
Olivier Coen, Jing Lu, Wenjia Xu, Stephanie Pateyron, Damaris Grain, Christine Pechoux, Loic Lepiniec, Enrico Magnani
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Plant Sciences
Alexandra To, Jerome Joubes, Jean Thueux, Sami Kazaz, Loic Lepiniec, Sebastien Baud
Review
Biochemistry & Molecular Biology
Massimiliano Corso, Francois Perreau, Gregory Mouille, Loic Lepiniec
Article
Plant Sciences
Geraint Parry, Nicholas J. Provart, Siobhan M. Brady, Baris Uzilday
Article
Biochemistry & Molecular Biology
Sami Kazaz, Guillaume Barthole, Frederic Domergue, Hasna Ettaki, Alexandra To, Damien Vasselon, Delphine De Vos, Katia Belcram, Loic Lepiniec, Sebastien Baud
Article
Multidisciplinary Sciences
Yajin Ye, Krisztina Nikovics, Alexandra To, Loic Lepiniec, Eric T. Fedosejevs, Steven R. Van Doren, Sebastien Baud, Jay J. Thelen
NATURE COMMUNICATIONS
(2020)
Article
Genetics & Heredity
Pierre Jacob, Gwilherm Brisou, Marion Dalmais, Johanne Thevenin, Froukje van der Wal, David Latrasse, Ravi Suresh Devani, Moussa Benhamed, Bertrand Dubreucq, Adnane Boualem, Loic Lepiniec, Richard G. H. Immink, Heribert Hirt, Abdelhafid Bendahmane
Summary: The study identified MYB5 and TT2 as new regulators in stress resistance, and revealed their role in SIIE-mediated HSFA2 regulation.
Review
Plant Sciences
Camille Salaun, Loic Lepiniec, Bertrand Dubreucq
Summary: Somatic embryogenesis is a method of asexual reproduction that shares similarities with zygotic embryogenesis and involves common developmental and physiological controls. It includes main signaling pathways and focuses on master regulators of seed development.
Article
Plant Sciences
Stephanie Boutet, Lea Barreda, Francois Perreau, Jean-Chrisologue Totozafy, Caroline Mauve, Bertrand Gakiere, Etienne Delannoy, Marie-Laure Martin-Magniette, Andrea Monti, Loic Lepiniec, Federica Zanetti, Massimiliano Corso
Summary: This study characterizes the landscape of specialized metabolites (SMs), primary metabolites, and lipid composition in camelina seeds grown in the open field. The predominant effect of the environment on seed SM regulation is observed, which may have potential implications for seed quality in other oilseed crops.
Review
Biochemistry & Molecular Biology
Sami Kazaz, Romane Miray, Loic Lepiniec, Sebastien Baud
Summary: Monounsaturated fatty acids are important components synthesized by plants, with unique structures and biological functions, widely used in the food and chemical industries. Ongoing research into the links between fatty acid structures and functions provides a theoretical basis for the development of new crops rich in monounsaturated fatty acids.
PROGRESS IN LIPID RESEARCH
(2022)
Article
Agricultural Engineering
Barbara Alberghini, Federica Zanetti, Massimiliano Corso, Stephanie Boutet, Loic Lepiniec, Angela Vecchi, Andrea Monti
Summary: Camelina is an oilseed crop with agronomic and qualitative characteristics that make it suitable for multiple bio-based applications. This study compared six camelina cultivars in terms of their agronomic characteristics, oil composition, and specialized metabolites content and composition. The results showed that different cultivars have different characteristics and that growing conditions can influence the content of specialized metabolites.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biology
Sebastien Baud, Massimiliano Corso, Isabelle Debeaujon, Bertrand Dubreucq, Dominique Job, Annie Marion-Poll, Martine Miquel, Helen North, Loic Rajjou, Loic Lepiniec
Summary: This article introduces the research on the mechanisms controlling seed development, metabolism, and physiology, as well as the contributions of Michel Caboche in this field. By updating a review coordinated by Caboche, the review provides an overview of seed biology research and highlights the experimental methods and advancements in the past decade.
COMPTES RENDUS BIOLOGIES
(2022)
