Review
Plant Sciences
Tao Fang, Hans Motte, Boris Parizot, Tom Beeckman
Summary: Roots play crucial roles in plant growth by anchoring and absorbing water and nutrients. Root evolution occurred independently at least twice in lycophyte and euphyllophyte clades, with the control mechanisms of root development in lycophytes remaining unclear.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Holly-Anne Turner, Matthew Humpage, Hans Kerp, Alexander J. Hetherington
Summary: In this study, the fossilized remains of early leafy plants were analyzed to investigate the arrangements of lateral plant organs. It was found that leaves exhibited diverse phyllotaxis, including spirals and spiral whorls. Additionally, the phyllotactic series of leaves and reproductive structures showed similarities, suggesting developmental connections between the organs. These findings provide insights into the debate on leaf origins and demonstrate the ancient occurrence of non-Fibonacci spirals in plants.
Article
Plant Sciences
Claire Perilleux, Samuel Huerga-Fernandez
Summary: Branching is crucial for determining crop yield. In tomato, the regulation of shoot and inflorescence branching involves three closely related meristems: the shoot apical meristem (SAM), inflorescence sympodial meristem (SIM), and shoot sympodial meristem (SYM). The fate of each meristem is regulated by the spatiotemporal activity of FM genes, with the initiation of sepal and flower abscission zone identified as a critical stage affecting inflorescence branching.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Nitsan Lugassi, Ofer Stein, Aiman Egbaria, Eduard Belausov, Hanita Zemach, Tal Arad, David Granot, Nir Carmi
Summary: Sucrose synthase (SuSy) and fructokinase (FRK) work together to control carbohydrate flux in sink tissues. Suppression of SUS1,3&4 and FRK2 genes affects shoot apical meristem growth, leaf structure, vascular development, as well as fruit and seed development in tomato plants.
Article
Agronomy
Junjun Nie, Lin Sun, Lijie Zhan, Xue Li, Wenting Hou, Yanjun Zhang, Weijiang Li, Dongmei Zhang, Zhengpeng Cui, Zhenhuai Li, Shizhen Xu, Jianlong Dai, Hezhong Dong
Summary: This study aimed to determine how terminal removal at first square affects vegetative branching and yield under different plant densities. The results showed that, at low plant density, terminal removal at first square (TRS) increased seedcotton yield and biological yield; while at high plant density, TRS decreased seedcotton yield and harvest index, but increased biological yield. TRS increased dry matter partitioning to vegetative organs but decreased partitioning to reproductive organs compared to other pruning modes.
FIELD CROPS RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Ming Wang, Jose Le Gourrierec, Fuchao Jiao, Sabine Demotes-Mainard, Maria-Dolores Perez-Garcia, Laurent Oge, Latifa Hamama, Laurent Crespel, Jessica Bertheloot, Jingtang Chen, Philippe Grappin, Soulaiman Sakr
Summary: Plants regulate their growth and development through a complex interaction between nutrients and hormones, ensuring survival. Different forms of sugars and the hormone CKs play crucial roles throughout the plant lifecycle. However, there is still limited research on their combined effects, indicating a need for further exploration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Ai My Luong, Helene Adam, Carole Gauron, Pablo Affortit, Fabrice Ntakirutimana, Ngan Giang Khong, Quang Hoa Le, Thi Nhu Le, Marie Fournel, Michel Lebrun, James Tregear, Stefan Jouannic
Summary: Research has shown that rice euANT/PLT genes exhibit divergent temporal expression patterns during early branching stages, with spatial localization in meristems for two of these genes. Furthermore, functional analysis of rice ANT-related genes using genome editing revealed their significance in regulating panicle architecture through axillary meristem establishment and fate transition. The paralogous euANT/PLT genes have partially diversified in functions and act in regulating the branching of the rice panicle.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Plant Sciences
Lingling Zhang, Weimin Fang, Fadi Chen, Aiping Song
Summary: Transcription factors play a crucial role in balancing plant development and stress responses. Branching is an important process in plant morphogenesis and is closely related to plant biomass and crop yield. Transcription factors are involved in regulating branching and development, as well as various plant hormone pathways and photoresponses.
Article
Multidisciplinary Sciences
Dmitry D. Sokoloff, Elena S. El, Margarita Remizowa
Summary: Ceratophyllum is an ancient and phylogenetically isolated angiosperm lineage. The shoot morphology and branching patterns in Ceratophyllum have been clarified using scanning electron microscopy. Each leaf axil of Ceratophyllum possesses a complex of two serial buds, with the lower one producing a vegetative branch and the upper one developing a reproductive unit. The reproductive unit is congenitally displaced to the subsequent node, and this phenomenon is known as concaulescence. The closest extant relatives of Ceratophyllum are believed to be Chloranthaceae, particularly Hedyosmum, which also exhibit serial buds and concaulescence.
Review
Plant Sciences
Tingting Yang, Yuling Jiao, Ying Wang
Summary: During plant development, lateral branching plays a crucial role in their spatial occupation and adaptation to changing environments. In seed plants, axillary meristems (AMs) are initiated at leaf axils to form axillary buds for shoot branching. Recent studies in Arabidopsis thaliana have uncovered the cellular origin of AMs and identified transcription factors and phytohormones that regulate AM initiation. Understanding the fate of stem cells and de novo meristem formation using the detachment of meristematic cells from the shoot apical meristem has great significance.
PLANT AND CELL PHYSIOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Chengyu Wang, Xiujuan Yang, Gang Li
Summary: Flowering plants develop new organs through different meristems, including the vegetative shoot apical meristem and the reproductive inflorescence meristem. In cereal crops, the yield contribution from fertilized florets is crucial, and the numbers and structures of branches, spikelets and florets within the inflorescence play a key role in determining yield. Research has made progress in understanding the molecular mechanisms of inflorescence meristem identification, maintenance, and differentiation in cereal crops.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Xiaofeng Yin
Summary: Phyllotaxis refers to the repetitive generation of plant organs in recognizable patterns at the shoot apical meristem. While there is a rich body of knowledge on phyllotactic patterns, parameters, and transitions, it is only in the past 20 years that genes and genetic pathways involved in phyllotaxis have started to be identified and elucidated. The morphological beauty of phyllotaxis is a result of many regulators, in addition to the essential role of auxin, acting either directly or indirectly in a coordinated manner in the SAM.
JOURNAL OF PLANT RESEARCH
(2021)
Article
Ecology
Gang Zeng, Bing Liu, David K. Ferguson, Yong Yang
Summary: This study observed the variation and early development of flowers of Beilschmiedia appendiculata, a species belonging to the Cryptocarya clade in the Lauraceae family. The research found that floral organs develop in an acropetal pattern and the floral merosity is extremely variable. Additionally, the species has lost the innermost staminal whorl, which is unusual in the Lauraceae family.
ECOLOGY AND EVOLUTION
(2021)
Article
Plant Sciences
Teva Vernoux, Fabrice Besnard, Christophe Godin
Summary: Plants generate a variety of shoot forms mainly from the activity of a stem cell niche at the shoot tip. Recent efforts have established a theoretical framework for understanding form emergence at the shoot tip, enabling the use of modelling and biological approaches to unravel the underlying mechanisms. This advancement brings us closer to identifying the principles of construction of plant shoot tips, with a proposed roadmap for developing a general theory of form development at the shoot tip in consideration of current limitations in knowledge.
Review
Plant Sciences
Margaryta Shtin, Raffaele Dello Ioio, Marta Del Bianco
Summary: The root meristem in plants is a powerful system to study meristem development, with gibberellins emerging as a key regulator in this process.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Rieko Fujinami, Toshihiro Yamada, Atsuko Nakajima, Shoko Takagi, Ai Idogawa, Eri Kawakami, Maiko Tsutsumi, Ryoko Imaichi
Article
Biochemistry & Molecular Biology
Yoshinori Murai, Rieko Fujinami, Ryoko Imaichi, Tsukasa Iwashina
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
(2009)
Article
Plant Sciences
Rieko Fujinami, J. Paul Ghogue, Ryoko Imaichi
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2013)
Article
Plant Sciences
Rieko Fujinami, Ryoko Imaichi
JOURNAL OF PLANT RESEARCH
(2009)
Article
Plant Sciences
Rieko Fujinami, Isao Yoshihama, Ryoko Imaichi
JOURNAL OF PLANT RESEARCH
(2011)
Article
Plant Sciences
Natsu Katayama, Rie Tanaka, Rieko Fujinami, Ryoko Imaichi
JOURNAL OF PLANT RESEARCH
(2019)
Review
Plant Sciences
Rieko Fujinami, Toshihiro Yamada, Ryoko Imaichi
JOURNAL OF PLANT RESEARCH
(2020)
Article
Plant Sciences
Rieko Fujinami, Atsuko Nakajima, Ryoko Imaichi, Toshihiro Yamada
Summary: Research suggests that roots of vascular plants may have originated from subterranean shoots of certain lycophyte species, with similarities in meristem dynamics supporting this hypothesis. The study of meristem dynamics in both roots and shoots of Lycopodium clavatum provides new botanical data to further understand the developmental similarities between roots and shoots in lycophytes.
Article
Plant Sciences
S Koi, R Fujinami, N Kubo, I Tsukamo, R Inagawa, R Imaichi, M Kato
AMERICAN JOURNAL OF BOTANY
(2006)