Article
Plant Sciences
Philippe Rieu, Laura Turchi, Emmanuel Thevenon, Eleftherios Zarkadas, Max Nanao, Hicham Chahtane, Gabrielle Tichtinsky, Jeremy Lucas, Romain Blanc-Mathieu, Chloe Zubieta, Guy Schoehn, Francois Parcy
Summary: LEAFY is a transcription factor that controls flower development by interacting with other proteins, including the F-box protein UFO. This study discovered that UFO acts as a transcriptional cofactor and guides LEAFY to new genomic locations. The research reveals a unique mechanism of an F-box protein directly influencing the DNA binding specificity of a master transcription factor.
Article
Plant Sciences
Mengting Pi, Shaoqiang Hu, Laichao Cheng, Ruhan Zhong, Zhuoying Cai, Zhongchi Liu, Jia-Long Yao, Chunying Kang
Summary: This study identified a mutant named R27 in woodland strawberry, highlighting the important role of the FveSEP3 gene in flower development and fruit growth. Further experiments showed that FveSEP3 can physically interact with the ABCE proteins in strawberry. Additionally, R27 and fvesep3(CR) mutants displayed parthenocarpic fruit growth and delayed fruit ripening, indicating the regulatory role of FveSEP3 in fruit development.
HORTICULTURE RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Chaoqun Shen, Yueya Zhang, Gang Li, Jin Shi, Duoxiang Wang, Wanwan Zhu, Xiujuan Yang, Ludovico Dreni, Matthew R. Tucker, Dabing Zhang
Summary: Temperature is an important factor affecting plant growth and diversity. This study reveals a previously unknown mechanism of plant floral organ development and temperature response. The MADS8 gene plays a conserved role in maintaining pistil number and ovule initiation in barley and rice, and its activity is temperature-dependent. This study also uncovers the regulatory relationship between MADS8 and other genes.
Article
Plant Sciences
Beth A. Krizek, Alexis T. Bantle, Jorman M. Heflin, Han Han, Nowlan H. Freese, Ann E. Loraine
Summary: Arabidopsis flower primordia give rise to organ primordia in stereotypical positions within four concentric whorls. Transcription factors ANT and AIL6 play important roles in the initiation and specification of floral organ identity, as well as the regulation of growth and morphogenesis during flower development. Genome-wide binding site analysis revealed that ANT and AIL6 target genes involved in various biological processes related to meristem and flower organ development, including class B and C floral homeotic genes, growth regulatory genes, and genes involved in vascular development. The comparison of ChIP-Seq peaks and differentially expressed genes after perturbation of ANT and AIL6 activity identified likely direct targets of ANT and AIL6 regulation.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Multidisciplinary Sciences
Xuelei Lai, Rosario Vega-Leon, Veronique Hugouvieux, Romain Blanc-Mathieu, Froukje van der Wal, Jeremy Lucas, Catarina S. Silva, Agnes Jourdain, Jose M. Muino, Max H. Nanao, Richard Immink, Kerstin Kaufmann, Francois Parcy, Cezary Smaczniak, Chloe Zubieta
Summary: The MADS transcription factors family is an ancient eukaryotic protein family, divided into two main lineages in plants. The conserved Intervening domain (I domain) is an integral part of the DNA-binding domain of MADS TF, significantly contributing to the functional identity by influencing DNA binding activity and dimerisation specificity.
NATURE COMMUNICATIONS
(2021)
Article
Cell Biology
Chengxiang Li, Songyao Zhang, Xingying Yan, Peng Cheng, Hao Yu
Summary: We conducted a cell census of rice pistils before fertilization using droplet-based single-nucleus RNA sequencing. The identification of cell markers through in situ hybridization validated the cell-type annotation and revealed cell heterogeneity between ovule- and carpel-originated cells. Comparison of 1N (gametophyte) and 2N (sporophyte) nuclei provided insights into the developmental path of germ cells in ovules and trajectory analysis of carpel-originated cells highlighted previously neglected features. These findings contribute to a comprehensive understanding of cellular differentiation and development in rice pistils and provide a foundation for studying female reproductive development in plants.
DEVELOPMENTAL CELL
(2023)
Article
Plant Sciences
Yaming Cai, Lu Wang, Collins Otieno Ogutu, Qiurui Yang, Binwen Luo, Liao Liao, Beibei Zheng, Ruoxi Zhang, Yuepeng Han
Summary: This study revealed the roles of ABCE model genes in double flower development in peach, with a focus on the importance of the PpPI gene. Additionally, it was found that single flowers could occasionally transform into double flowers by converting stamens to petals, indicating a potential evolutionary link between single and double flower structures.
PHYSIOLOGIA PLANTARUM
(2021)
Review
Plant Sciences
Marcus G. Heisler, Henrik Joensson, Stephan Wenkel, Kerstin Kaufmann
Summary: Plant development is controlled by transcription factors, but the molecular mechanisms behind their diversity and specificity are not well understood. Flower development serves as an ideal context to study these mechanisms, as different floral organs depend on distinct combinations of transcriptional regulators. Recent research also emphasizes the role of leaf polarity regulators in flower development. Understanding how these factors work together will help answer questions about the generation of different shapes and positions of floral organs.
CURRENT OPINION IN PLANT BIOLOGY
(2022)
Article
Plant Sciences
Tong Zhao, Alma Pineyro-Nelson, Qianxia Yu, Xiaoping Pan, Xiaoying Hu, Huanfang Liu, Jingping Liao
Summary: The flower of Hedychium coronarium is controlled by two gene categories, which includes ABC-class genes and HcPTL, showing a novel spatio-temporal expression pattern for HcPTL mRNA. The molecular mechanisms underlying particular organ morphologies in flower development remain poorly understood and require further research.
JOURNAL OF PLANT BIOLOGY
(2021)
Article
Horticulture
Jing Wang, Yanwei Ouyang, Yongzan Wei, Jingjing Kou, Xiaohan Zhang, Hongna Zhang
Summary: In this study, the characteristics and functions of Trihelix genes in pineapple were analyzed. It was found that Trihelix genes were unevenly distributed in the chromosomes of pineapple and had homologous gene pairs with several plant species. The promoters of Trihelix were rich in cis-elements related to light and hormone response. The expression of Trihelix members showed tissue specificities in different tissues of pineapple.
Article
Plant Sciences
Ryan P. McQuinn, Julie Leroux, Julio Sierra, Lina Escobar-Tovar, Sarah Frusciante, E. Jean Finnegan, Gianfranco Diretto, Giovanni Giuliano, James J. Giovannoni, Patricia Leon, Barry J. Pogson
Summary: The redundancy and interplay among transcriptional regulators of floral development play a crucial role in ensuring plant reproductive success and crop production. This study reveals an additional layer of complexity in the regulation of floral meristem identity and flower development, linking carotenoid biosynthesis and metabolism to the determinate flowering regulation. The accumulation and cleavage of various ?-carotenes in the clb5 mutant of Arabidopsis leads to the reprogramming of gene regulatory networks, establishing floral meristem identity similar to the master regulator APETALA1 (AP1). The findings also suggest that this link between carotenoid metabolism and floral development is conserved in tomato, involving AP1 and SEPALLATA3 (SEP3) as redundant regulators of floral meristem identity.
Article
Plant Sciences
Fengxi Yang, Chuqiao Lu, Yonglu Wei, Jieqiu Wu, Rui Ren, Jie Gao, Sagheer Ahmad, Jianpeng Jin, Yechun Xv, Gang Liang, Genfa Zhu
Summary: This study analyzed the gene expression in the development of Cymbidium ensifolium flowers and identified specific genes involved in flower organ growth. The miR396-GRF module was found to play a potential role in organ development through the cleavage of distinct CeGRFs. These findings provide valuable insights into the biological roles of GRFs in orchid development and open new possibilities for diversifying orchid floral patterns.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Yan-Qin Ma, Zuo-Qian Pu, Xiao-Min Tan, Qi Meng, Kai-Li Zhang, Liu Yang, Ye-Ye Ma, Xuan Huang, Zi-Qin Xu
Summary: This study found that SEPALLATA-like genes have significant effects on the architecture of inflorescence, determinacy of floral meristems, and development of floral organs in woad.
Article
Biochemistry & Molecular Biology
Sergei Lembinen, Mikolaj Cieslak, Teng Zhang, Kathryn Mackenzie, Paula Elomaa, Przemyslaw Prusinkiewicz, Timo Hytonen
Summary: This study analyzes the diversity and development of the woodland strawberry inflorescence and uncovers it as a closed thyrse with features of racemes and cymes. It shows that TERMINAL FLOWER 1 and FLOWERING LOCUS T play important roles in regulating inflorescence development. The findings provide insights into the molecular and developmental mechanisms of thyrse architecture.
Article
Plant Sciences
Zuo-Qian Pu, Zi-Qin Xu
Summary: The identity of floral organs is defined by a small group of transcriptional regulators, with A. thaliana serving as material to establish the ABCDE model. Specific combinations of A-, B-, C-, D-, or E-class floral homeotic genes confirm the identity of different floral organs.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Editorial Material
Plant Sciences
Paloma Mas, Jaime Martinez-Garcia, Jose Luis Riechmann, Soraya Pelaz
PHYSIOLOGIA PLANTARUM
(2015)
Review
Biochemistry & Molecular Biology
Darragh Stewart, Emmanuelle Graciet, Frank Wellmer
Review
Plant Sciences
Mariana Bustamante, Jose Tomas Matus, Jose Luis Riechmann
JOURNAL OF EXPERIMENTAL BOTANY
(2016)
Article
Multidisciplinary Sciences
Remi de Marchi, Maud Sorel, Brian Mooney, Isabelle Fudal, Kevin Goslin, Kamila Kwasniewska, Patrick T. Ryan, Marina Pfalz, Juergen Kroymann, Stephan Pollmann, Angela Feechan, Frank Wellmer, Susana Rivas, Emmanuelle Graciet
SCIENTIFIC REPORTS
(2016)
Review
Plant Sciences
Nico Dissmeyer, Susana Rivas, Emmanuelle Graciet
Article
Plant Sciences
Kevin Goslin, Beibei Zheng, Antonio Serrano-Mislata, Liina Rae, Patrick T. Ryan, Kamila Kwasniewska, Bennett Thomson, Diarmuid S. O'Maoileidigh, Francisco Madueno, Frank Wellmer, Emmanuelle Graciet
Review
Plant Sciences
Alexandra Miricescu, Kevin Goslin, Emmanuelle Graciet
JOURNAL OF EXPERIMENTAL BOTANY
(2018)
Article
Multidisciplinary Sciences
Norma Fabregas, Fidel Lozano-Elena, David Blasco-Escamez, Takayuki Tohge, Cristina Martinez-Andujar, Alfonso Albacete, Sonia Osorio, Mariana Bustamante, Jose Luis Riechmann, Takahito Nomura, Takao Yokota, Ana Conesa, Francisco Perez Alfocea, Alisdair R. Fernie, Ana I. Cano-Delgado
NATURE COMMUNICATIONS
(2018)
Article
Plant Sciences
Brian C. Mooney, Emmanuelle Graciet
Article
Plant Sciences
Michela Osnato, Unai Cereijo, Jan Sala, Luis Matias-Hernandez, Andrea E. Aguilar-Jaramillo, Maria Rosa Rodriguez-Goberna, Jose Luis Riechmann, Manuel Rodriguez-Concepcion, Soraya Pelaz
Summary: Members of the plant-specific RAV family of transcription factors, TEM1 and TEM2, play crucial roles in regulating phase changes and abiotic stress responses in Arabidopsis thaliana. TEM overexpressing plants were hypersensitive to salt stress, while tem1 tem2 double mutants showed increased tolerance. Additionally, tem1 tem2 mutants exhibited faster germination and flowering, delayed leaf senescence, and enhanced antioxidant capacity compared to wild-type plants under salt stress conditions.
Review
Plant Sciences
Brian C. Mooney, Melissa Mantz, Emmanuelle Graciet, Pitter F. Huesgen
Summary: Pathogens and hosts are locked in an evolutionary arms race, with pathogen effectors targeting host proteins and host proteins evolving to sense and counteract these effectors. Type III effector proteases are common among bacterial pathogens and modify host proteins irreversibly. Studying effector proteases in plants provides insights into how pathogens evade host immune responses, and how hosts detect and defend against these effectors.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Review
Plant Sciences
Catherine M. Doorly, Emmanuelle Graciet
Summary: Hypoxia is a significant stress factor for both plants and mammals, leading to crop losses in plants and pathological conditions in mammals. Understanding the shared mechanisms of how plants and mammals sense and respond to hypoxia can provide insights for crop improvement and therapeutic development. The ubiquitin/proteasome system and SUMO protein play essential roles in regulating hypoxia responses in both plants and mammals, highlighting the potential for future interdisciplinary research in this area.
Article
Plant Sciences
Alexandra Miricescu, Ailbhe Jane Brazel, Joseph Beegan, Frank Wellmer, Emmanuelle Graciet
Summary: Waterlogging causes major crop losses globally, especially for waterlogging-sensitive crops like barley. The reduced oxygen availability due to waterlogging activates hypoxia and stress response pathways, promoting plant survival. Although some barley varieties are more tolerant to waterlogging than others and certain tolerance-related genes have been identified, the molecular mechanisms underlying this trait are mostly unknown. Transcriptomics approaches provide valuable information for understanding waterlogging tolerance.
Article
Biochemistry & Molecular Biology
Antonio Serrano-Mislata, Kevin Goslin, Beibei Zheng, Liina Rae, Frank Wellmer, Emmanuelle Graciet, Francisco Madueno
PLANT SIGNALING & BEHAVIOR
(2017)