Article
Plant Sciences
Ailen Authier, Pablo Cerdan, Gabriela Auge
Summary: This study evaluated the effects of ambient temperature changes on the expression of transgenerational plasticity in key developmental traits of Arabidopsis thaliana plants. The results showed that the environment during the whole life cycle of the first generation of plants influenced the germination response and flowering time of the second generation, while the production of reproductive biomass depended on the immediate environment of the progeny generation. Additionally, the seed area of the third generation was influenced positively by correlated environments across generations.
Article
Multidisciplinary Sciences
Xiaochao Chen, Dana R. R. MacGregor, Francesca L. L. Stefanato, Naichao Zhang, Thiago Barros-Galvao, Steven Penfield
Summary: Mother plants play a crucial role in determining the dispersal characteristics of their progeny by controlling seed dormancy. The study shows that the VEL3 histone deacetylase complex establishes an epigenetic state in the maternal plant, which regulates progeny seed dormancy. This mechanism involves the association of VEL3 with a histone deacetylase complex, preferential attachment to pericentromeric chromatin, and repression of specific genes to control seed behavior.
NATURE COMMUNICATIONS
(2023)
Editorial Material
Biology
Vy Nguyen, Iain Searle
Summary: A widely accepted model that explains how plants initiate flowering during cold weather may require reevaluation.
Article
Biology
Myeongjune Jeon, Goowon Jeong, Yupeng Yang, Xiao Luo, Daesong Jeong, Jinseul Kyung, Youbong Hyun, Yuehui He, Ilha Lee
Summary: To synchronize flowering time with spring, plants undergo vernalization, a process triggered by exposure to long-term winter cold. In Arabidopsis thaliana, this is achieved through cold-mediated epigenetic silencing of the floral repressor, FLOWERING LOCUS C (FLC). COOLAIR, a cold-induced antisense RNA, facilitates FLC silencing.
Article
Plant Sciences
Vit Latzel, Markus Fischer, Maartje Groot, Ruben Gutzat, Christian Lampei, Joop Ouborg, Madalin Parepa, Karl Schmid, Philippine Vergeer, Yuanye Zhang, Oliver Bossdorf
Summary: This study demonstrates that parental environmental effects are common and often strong in Arabidopsis thaliana, but they are genotype-dependent, act nonadditively, and are difficult to predict.
Article
Plant Sciences
Bing Bai, Niels van der Horst, Jan H. Cordewener, Antoine H. P. America, Harm Nijveen, Leonie Bentsink
Summary: The study investigated the correlation between total mRNA, polysome-associated mRNA, and protein levels during seed germination, finding a low direct correlation between polysomal mRNA and protein abundance. Genes with delayed protein changes were classified, specific motifs in these genes were identified, and mRNA and protein stability as well as mRNA length were found to be important predictors for changes in protein abundance. In conclusion, polysome association and/or dissociation predicts future changes in protein abundance in germinating seeds.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Emmanuel Baudouin, Juliette Puyaubert, Patrice Meimoun, Melisande Blein-Nicolas, Marlene Davanture, Michel Zivy, Christophe Bailly
Summary: This study investigated the remodeling of Arabidopsis seed phosphoproteome during imbibition using stable isotope dimethyl labeling and nanoLC-MS/MS analysis. The study identified a large repertoire of phosphopeptides and phosphoproteins involved in seed germination control, including protein kinases and key regulators like DOG1. Gene ontology analysis revealed their involvement in various biological processes. The study provides evidence of the major role of phosphosignaling in the regulation of Arabidopsis seed germination.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Zhengbing Yan, Di Tian, Wenxuan Han, Chengjun Ji, Xinghui Hou, Yalong Guo, Jingyun Fang
Summary: Nutrient availability significantly affects plant growth and metabolic functions. This study investigates if and how long-term exposure of ancestral plants to different nutrient environments influences offspring phenotypic performance. Results show that current nutrient environments have a stronger impact on offspring traits compared to ancestral nutrient environments. However, increasing nutrient availability in the offspring generation leads to changes in flowering time, biomass, and biomass allocation fractions among organs. Overall, this study highlights the importance of within-generational trait plasticity in plant adaptation and evolutionary processes under changing nutrient environments.
JOURNAL OF PLANT RESEARCH
(2023)
Article
Plant Sciences
Yu Wu, Huimin Liu, Jie Bing, Genfa Zhang
Summary: Seed germination is crucial for plant survival and agriculture, and is influenced by various factors. The key enzyme enolase 2 (ENO2) plays an important role in plant growth and stress response. Our study showed that under salt stress, the seed germination rate was lower in the AtENO2 mutation compared to the wild type. Transcriptome and proteome analyses revealed differential expression of genes and proteins related to stress response, phytohormone signal transduction, and reactive oxygen species (ROS) in the AtENO2 mutation. Additionally, GAPA1 and GAPB were identified as proteins that interact with AtENO2. These findings provide a foundation for further investigation of the molecular function of AtENO2 during seed germination under salt stress in Arabidopsis thaliana.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Maor Matzrafi, O. Adewale Osipitan, Sara Ohadi, Mohsen B. Mesgaran
Summary: The study shows that water stress during parental plant growth affects the characteristics of progeny seeds, making them heavier, larger, and less dormant. This maternal effect also impacts the germination parameters of the seeds, with seeds from water-stressed plants having a lower estimated median base water potential.
Article
Plant Sciences
Tom Laloum, Sofia D. Carvalho, Guiomar Martin, Dale N. Richardson, Tiago M. D. Cruz, Raquel F. Carvalho, Kevin L. Stecca, Anthony J. Kinney, Mathias Zeidler, Ines C. R. Barbosa, Paula Duque
Summary: The plant-specific SCL30a SR protein negatively regulates ABA signaling to control seed traits and stress responses during germination in Arabidopsis. Loss of SCL30a function induces ABA-responsive gene expression and genes repressed during germination, resulting in delayed germination and hypersensitivity to ABA and high salinity in scl30a mutant seeds. Transgenic plants overexpressing SCL30a exhibit reduced ABA and salt stress sensitivity.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Bing Bai, Bastian Schiffthaler, Sjors van der Horst, Leo Willems, Alexander Vergara, Jacob Karstrom, Niklas Mahler, Nicolas Delhomme, Leonie Bentsink, Johannes Hanson
Summary: We describe the dynamic changes in translation that occur during seed maturation, germination, and seedling establishment. Through network analysis, we identified putative regulatory relationships and confirmed some of them in vivo. The construction of SeedTransNet, a regulatory network based on polysome occupancy data, allowed us to predict translational regulatory pathways involving hundreds of genes and specific transcript sequence features suggesting separate regulatory circuits. Our study demonstrated the usefulness of SeedTransNet in identifying regulatory pathways during seed phase transitions.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Chunmei Zhong, Barunava Patra, Yi Tang, Xukun Li, Ling Yuan, Xiaojing Wang
Summary: This study revealed that brassinosteroids induce seed germination in Arabidopsis by promoting the rupture of seed coat and endosperm, while two key basic helix-loop-helix transcription factors, HBI1 and BEE2, are involved in the regulation of this process. Furthermore, HBI1 and BEE2 promote the expression of the GA-Stimulated Arabidopsis 6 (GASA6) gene, which plays a role in GA and BR signaling, thus outlining a regulatory module controlling seed germination in Arabidopsis.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Biochemistry & Molecular Biology
Junyan Xie, Lihua Wang, Huiqiong Zheng
Summary: Understanding how spaceflight affects plant flowering is crucial for long-term human space exploration. Recent space experiments showed that flowering initiation in plants was delayed by about 20 days in space compared to the control group on the ground, and gene expression levels were altered.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Hideyuki Komoto, Ai Nagahama, Atsuko Miyawaki-Kuwakado, Yuki Hata, Junko Kyozuka, Yui Kajita, Hironori Toyama, Akiko Satake
Summary: Climate warming affects the shifting of key life-history events, such as flowering time. Understanding the transcriptional changes of genes is crucial in assessing the impact of increasing temperature on flowering phenology. This study investigated the seasonal expression dynamics of 293 flowering-time genes in Arabidopsis halleri along latitudinal gradients in Japan. The results showed that the flowering period was shortened with decreasing latitude, leading to a loss of flowering opportunity in subtropical climates. The diminished expression of floral pathway integrator genes, gibberellin synthesis genes, and aging pathway genes, which are suppressed by the increased expression of FLOWERING LOCUS C, a key repressor gene, were found to be the key transcriptional changes underlying the shortening of flowering period and loss of flowering opportunity. These findings suggest that a small number of genes play a significant role in regulating the upper-temperature limit of reproduction in the absence of winter cold.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Gabriela A. Auge, Logan K. Blair, Liana T. Burghardt, Jennifer Coughlan, Brianne Edwards, Lindsay D. Leverett, Kathleen Donohue
SEED SCIENCE RESEARCH
(2015)
Article
Plant Sciences
Lindsay D. Leverett, Gabriela A. Auge, Aman Bali, Kathleen Donohue
Article
Plant Sciences
Logan Blair, Gabriela Auge, Kathleen Donohue
FUNCTIONAL PLANT BIOLOGY
(2017)
Article
Plant Sciences
Santiago A. Trupkin, Gabriela A. Auge, Jian-Kang Zhu, Rodolfo A. Sanchez, Javier F. Botto
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2017)
Review
Plant Sciences
Gabriela A. Auge, Lindsay D. Leverett, Brianne R. Edwards, Kathleen Donohue
Article
Plant Sciences
Katherine Vayda, Kathleen Donohue, Gabriela Alejandra Auge
Article
Biochemistry & Molecular Biology
Silvia E. Ibarra, Gabriela Auge, Rodolfo A. Sanchez, Javier F. Botto
Editorial Material
Multidisciplinary Sciences
Virginia Gewin, Dale Nimmo, Arinjay Banerjee, Liz Martin-Silverstone, Manual Spitschan, Gabriela Auge
Review
Plant Sciences
Gabriela A. Auge, Steven Penfield, Kathleen Donohue
Article
Multidisciplinary Sciences
Claudia R. Arbeitman, Gabriela Auge, Matias Blaustein, Luis Bredeston, Enrique S. Corapi, Patricio O. Craig, Leandro A. Cossio, Liliana Dain, Cecilia D'Alessio, Fernanda Elias, Natalia B. Fernandez, Yamila B. Gandola, Javier Gasulla, Natalia Gorojovsky, Gustavo E. Gudesblat, Maria G. Herrera, Lorena I. Ibanez, Tommy Idrovo, Matias Iglesias Rando, Laura Kamenetzky, Alejandro D. Nadra, Diego G. Noseda, Carlos H. Pavan, Maria F. Pavan, Maria F. Pignataro, Ernesto Roman, Lucas A. M. Ruberto, Natalia Rubinstein, Javier Santos, Francisco Velazquez, Alicia M. Zelada
SCIENTIFIC REPORTS
(2020)
Editorial Material
Multidisciplinary Sciences
Rocio Deanna, Bethann Garramon Merkle, Kwok Pan Chun, Deborah Navarro-Rosenblatt, Ivan Baxter, Nora Oleas, Alejandro Bortolus, Patricia Geesink, Luisa Diele-Viegas, Valeria Aschero, Maria Jose de Leone, Sonia Oliferuk, Rui Zuo, Andrea Cosacov, Mariana Grossi, Sandra Knapp, Alicia Lopez-Mendez, Elina Welchen, Pamela Ribone, Gabriela Auge
Summary: Mentor relationships are crucial for the retention, success, and well-being of women and underrepresented minority scientists in academia. A diverse network of mentors can support the achievement of long-term career goals, advancement, and retention of both mentors and mentees, thereby enhancing diversity, equity, and inclusion initiatives.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Toshiyuki Imaizumi, Yoshihiro Kawahara, Gabriela Auge
Summary: Hybridization between weedy and cultivated rice can stabilize and transmit adaptive traits, such as seed dormancy. This study found that hybrid-derived weedy rice strains maintained adaptive allele combinations for seed dormancy, despite equal representation of parental weedy and cultivated rice in the genome. The hybrid-derived strains were more dormant than the parental weedy rice strains.
Article
Plant Sciences
Gabriela A. Auge, Logan K. Blair, Aleena Karediya, Kathleen Donohue
Article
Plant Sciences
Toshiyuki Imaizumi, Gabriela Auge, Kathleen Donohue
AMERICAN JOURNAL OF BOTANY
(2017)