Article
Plant Sciences
Jennifer A. N. Brophy
Summary: Recent advances in understanding plant development and gene expression control may lead to a new strategy for engineering plant form and function, allowing for the production of novel agricultural products designed to tolerate extreme stresses, increase yield, reduce waste, and improve manufacturing practices.
Article
Biochemistry & Molecular Biology
Xing Wang, Yu Wu, Zijin Liu, Tong Liu, Lamei Zheng, Genfa Zhang
Summary: The study used CRISPR/Cas9 system to mutate PIP1;4 and PIP1;5 genes in a triple mutant, generating a quintuple mutant. The pip1s(-) mutants exhibited smaller leaves and flowers, fewer developed siliques, shorter silique length, and decreased seed production compared to the wild-type plant. The mutant also showed significantly lower pollen germination rate and deformed pollen outer wall, along with transcriptomic changes in key genes related to leaf, flower, and pollen development.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Biochemistry & Molecular Biology
Jian-Hong Li, Mehtab Muhammad Aslam, Yang-Yang Gao, Lei Dai, Ge-Fei Hao, Zhong Wei, Mo-Xian Chen, Francisco Dini-Andreote
Summary: Microorganisms in the rhizosphere and phyllosphere of plants play important roles in plant growth and health. Recent research has shown that specific plant-associated microbes contribute to systemic plant responses that enhance plant health and performance against various stresses. However, there is still limited understanding of the mechanisms involved in microbiome-mediated signal transduction in plants. This review provides an overview of long-distance signaling mechanisms in plants mediated by plant-associated microbiomes, exploring the concept of plants and microbes as a holobiont and discussing the key molecules and mechanisms associated with plant-microbe interactions and signal transduction-induced changes in plant physiology.
TRENDS IN MICROBIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Kristoffer Jonsson, Olivier Hamant, Rishikesh P. Bhalerao
Summary: The instructive role of mechanical cues in plant morphogenesis is crucial for directing growth asymmetries. The cell wall acts as a hub for mechanical feedback, integrating the three parameters of shape, growth, and external factors. Changes in cell-wall chemistry and mechanics play a significant role in transducing mechanical cues during morphogenesis.
Review
Plant Sciences
M. Teresa Alejo-Vinogradova, Diego Ornelas-Ayala, Rosario Vega-Leon, Adriana Garay-Arroyo, Berenice Garcia-Ponce, Elena R. Alvarez-Buylla, Maria de la Paz Sanchez
Summary: Current understanding suggests that regulation of asymmetric cell divisions in plants involves not only key transcription factor networks, but also crucial epigenetic mechanisms. Proper epigenetic regulation and chromatin dynamics are essential for integrating signals and specifying cell lineages during asymmetric cell divisions.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Review
Biochemistry & Molecular Biology
Liu Hong, Jennifer C. Fletcher
Summary: The development of animals and plants relies on pluripotent stem cells, and in plants, the stem cell reservoir is located in the shoot and root tips in structures called meristems. The shoot apical meristem (SAM) continuously produces new leaf, stem, and flower organs. SAM acts as the engine of plant development, balancing self-renewal and differentiation, and providing a constant source of new cells for organ formation while maintaining a stem cell reservoir. Various regulatory pathways, including transcription factors and hormone signaling, orchestrate SAM function and integrate stem cell activity and organ initiation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Doosan Shin, Veronica C. Perez, Gabriella K. Dickinson, Haohao Zhao, Ru Dai, Breanna Tomiczek, Keun Ho Cho, Ning Zhu, Jin Koh, Alexander Grenning, Jeongim Kim
Summary: Phenylpropanoids are specialized metabolites derived from phenylalanine, and glucosinolates are defense compounds derived mainly from methionine and tryptophan. The accumulation of indole-3-acetaldoxime (IAOx), the precursor of tryptophan-derived glucosinolates, represses phenylpropanoid biosynthesis through accelerated degradation of phenylalanine ammonia lyase (PAL). This study investigates the impact of aliphatic aldoximes (AAOx) derived from methionine on phenylpropanoid production using Arabidopsis aldoxime mutants. The result shows that AAOx accumulation inhibits phenylpropanoid production and PAL activity.
Editorial Material
Biochemistry & Molecular Biology
Michael D. Nodine
Summary: Parental contributions affect early embryogenesis by regulating maternal resources distribution to offspring. A new study in Arabidopsis thaliana shows that signaling components from maternal sporophytic tissues and paternal gametes converge in zygotes to promote elongation of the extraembryonic suspensor, supporting embryo development.
Article
Multidisciplinary Sciences
Alexandra J. Dickinson, Jingyuan Zhang, Michael Luciano, Guy Wachsman, Evan Sandoval, Martin Schnermann, Jose R. Dinneny, Philip N. Benfey
Summary: Research has shown that retinal binding occurs before lateral root formation and helps to promote root clock oscillations. The Arabidopsis protein TIL oscillates in the region of retinal binding, shares homology with vertebrate retinoid-binding proteins, and plays a role in lateral root organogenesis.
Review
Plant Sciences
Bingjian Yuan, Huanzhong Wang
Summary: Plant small peptides, including CLE and EPFL, play crucial roles in cell-cell communication to coordinate developmental processes, especially in vascular development. Different sources of peptides, such as CLE and EPFL, have specific regulatory effects on plant growth and development.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Cell Biology
Judit Sanchez-Simarro, Pilar Selvi, Cesar Bernat-Silvestre, Eugenio Gomez Minguet, Fernando Aniento, Maria Jesus Marcote
Summary: Coat protein I (COPI) is essential for intra-Golgi transport and retrograde transport and its key component is the coatomer complex. The beta'-COP isoforms in Arabidopsis play a significant role in plant biology.
Article
Biology
Magdolna Gombos, Cecile Raynaud, Yuji Nomoto, Eszter Molnar, Rim Brik-Chaouche, Hirotomo Takatsuka, Ahmad Zaki, Dora Bernula, David Latrasse, Keito Mineta, Fruzsina Nagy, Xiaoning He, Hidekazu Iwakawa, Erika Oszi, Jing An, Takamasa Suzuki, Csaba Papdi, Clara Bergis, Moussa Benhamed, Laszlo Bogre, Masaki Ito, Zoltan Magyar
Summary: Canonical E2F transcription factors play central roles in establishing cellular quiescence during plant organ development by forming repressor complexes with RBR proteins and regulating cell cycle-related genes. Contrary to previous beliefs, mutations in all three canonical E2Fs do not hinder the cell cycle but result in hyperplasia, similar to RBR silencing. The loss of E2Fs, but not the MYB3Rs, interferes with quiescence, possibly due to the ability of E2Fs to control both G1-S and some key G2-M targets.
COMMUNICATIONS BIOLOGY
(2023)
Article
Plant Sciences
Tingting Chen, Shijia Lin, Ziping Chen, Tianyuan Yang, Shupei Zhang, Jinsong Zhang, Guohua Xu, Xiaochun Wan, Zhaoliang Zhang
Summary: A study has found that theanine, synthesized by GSI-like proteins in tea plants, plays a crucial role in nitrogen signaling and development. Exogenous theanine inhibits lateral root development by reducing H2O2 accumulation. This study reveals the regulatory role of CsTSI-synthesized theanine in lateral root development in tea plants.
HORTICULTURE RESEARCH
(2023)
Review
Plant Sciences
Houping Wang, Wanqin Chen, Zhiyu Xu, Mifen Chen, Diqiu Yu
Summary: As sessile organisms, plants have evolved plant-specific growth and developmental processes to overcome various stresses. The WRKY transcription factors, present only in plants and not animals, play roles in stress responses as well as seed dormancy and germination, postembryonic morphogenesis, flowering, gametophyte development, and seed production.
TRENDS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Chunli Zhang, Yujie Wu, Xiaorui Liu, Jiayi Zhang, Xin Li, Li Lin, Ruohe Yin
Summary: This study investigates the functions of SlHY5 in tomato plants, and reveals its critical roles in seedling growth, root development, chlorophyll biosynthesis, and fruit metabolism. The findings show that SlHY5 promotes chlorophyll accumulation in fruits, with a stronger effect on the illuminated side. Transcriptome and metabolome analyses also demonstrate that SlHY5 is involved in the regulation of phenylpropanoids and steroidal glycoalkaloids. These results highlight the importance of manipulating SlHY5 for improving seedling fitness and fruit quality in tomato.
Review
Plant Sciences
Antonio Serrano-Mislata, Robert Sablowski
CURRENT OPINION IN PLANT BIOLOGY
(2018)
Article
Plant Sciences
Rafael Garcia Tavares, Prakash Lakshmanan, Edgar Peiter, Anthony O'Connell, Camila Caldana, Renato Vicentini, Jose Sergio Soares, Marcelo Menossi
JOURNAL OF EXPERIMENTAL BOTANY
(2018)
Review
Biochemistry & Molecular Biology
Ana Laura G. L. Peres, Jose Sergio Soares, Rafael G. Tavares, Germanna Righetto, Marco A. T. Zullo, N. Bhushan Mandava, Marcelo Menossi
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2019)
Review
Genetics & Heredity
Marco D'Ario, Robert Sablowski
ANNUAL REVIEW OF GENETICS, VOL 53
(2019)
Article
Biochemistry & Molecular Biology
Xiuwei Cao, Jin Wang, Yuanyuan Xiong, Haibian Yang, Minglei Yang, Peiyi Ye, Stefano Bencivenga, Robert Sablowski, Yuling Jiao
Review
Plant Sciences
Lucas Anjos Souza, Rafael Tavares
Summary: High crop yields often require high nitrogen fertilizer rates, necessitating the adoption of precision technologies for efficient nitrogen management to meet the needs of sustainable farm systems. Stem architecture plays a crucial role in enhancing harvest index in cereal crops, but can also lead to undesirable effects. It is important to better understand how nitrogen signals regulate stem development to uncover new semi-dwarf alleles without pleiotropic effects.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Marco D'Ario, Rafael Tavares, Katharina Schiessl, Benedicte Desvoyes, Crisanto Gutierrez, Martin Howard, Robert Sablowski
Summary: The study reveals that cell size variability in the Arabidopsis shoot stem cell niche is corrected by adjusting the growth period before DNA synthesis. KRP4 and FBL17 proteins play key roles in removing excess cell cycle regulators, ensuring daughter cells are born with comparable amounts of KRP4. This suggests a potential mechanism where a cell cycle regulator associated with mitotic chromosomes can read DNA content as a cell size-independent scale.
Article
Plant Sciences
Max Bush, Vishmita Sethi, Robert Sablowski
Summary: The plant vasculature plays crucial roles in water and nutrient transport. Pectins, key components of cell walls, are modified during cell growth and differentiation. This study reveals the importance of the pectin lyase-like gene PLL12 in the growth of vascular bundles in Arabidopsis.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Biochemistry & Molecular Biology
Robert Sablowski, Crisanto Gutierrez
Summary: Plant growth relies on the continuous production of new cells, with morphogenesis depending on the rate and direction of cell division and growth. Coordination between cell cycle progression, division orientation, growth cues, and cell fate changes is crucial. The retinoblastoma pathway and microtubule dynamics play key roles in linking cell cycle with growth, cell identity, and oriented cell divisions.
Article
Biochemistry & Molecular Biology
Dana O. Robinson, Jeremy E. Coate, Abhyudai Singh, Lilan Hong, Max Bush, Jeff J. Doyle, Adrienne H. K. Roeder