Article
Plant Sciences
Kailas K. Kapadane, Pramod R. Lawand, Vinod B. Shimpale, Kishore S. Rajput
Summary: This study investigated the histological characteristics of Argyreia elliptica and found various types of cambial variants in the main stem and branches. A unique feature of the plant, the development of xylem cylinders from parenchyma cells external to the phloem of the earlier formed cambium, was also observed.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Forestry
Biyun Yu, Xuebin Li, Ping Zhao, Jianguo Huang
Summary: This study investigated the intra-annual dynamics of xylem and phloem formation of Picea crassifolia at two latitudes of arid and semi-arid forests in China. The results showed variations in xylem and phloem formation at different latitudes, with different trade-offs observed between them at different sites, highlighting the plasticity of xylem and phloem formation under changing environmental conditions.
Review
Plant Sciences
Emma K. Turley, J. Peter Etchells
Summary: The development of secondary vascular tissue enhances the transport capacity and mechanical strength of plant bodies, contributing significantly to the world's biomass in the form of wood. The cambium, as the vascular meristem, is a unique stem cell population arising post-germination and exhibiting bifacial differentiation of xylem and phloem. Recent research in Arabidopsis thaliana has shed light on the molecular mechanisms regulating cambium initiation, patterning, and maintenance.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Forestry
Biyun Yu, Sergio Rossi, Hongxin Su, Ping Zhao, Shaokang Zhang, Baoqing Hu, Xuebin Li, Lin Chen, Hanxue Liang, Jian-Guo Huang
Summary: This study analyzed the growth dynamics and response to weather conditions of Qinghai spruce in arid and semi-arid areas of China, finding that warm conditions in winter and early spring promote xylogenesis but may delay bud burst. The increase in xylem width is mainly correlated with the duration from bud burst to the start of latewood cell division.
Article
Plant Sciences
Kaori Sakai, Sylvie Citerne, Sebastien Antelme, Philippe Le Bris, Sylviane Daniel, Axelle Bouder, Angelina D'Orlando, Amy Cartwright, Frederique Tellier, Stephanie Pateyron, Etienne Delannoy, Debbie Laudencia-Chingcuanco, Gregory Mouille, Jean Christophe Palauqui, John Vogel, Richard Sibout
Summary: The vascular system of plants consists of xylem and phloem tissues organized into vascular bundles. A mutation in the ERECTA gene severely affected vascular tissue organization in the model grass Brachypodium, indicating a pleiotropic role in plant development. The mutation led to defects in vasculature anastomosis, suggesting a major role of ERECTA in vascular tissue organization.
Article
Plant Sciences
Zhen Han, Tong Yang, Ying Guo, Wen-Hui Cui, Li-Juan Yao, Gang Li, Ai-Min Wu, Ji-Hong Li, Li-Jun Liu
Summary: This study genetically characterized PagLBD3, an important regulator of secondary growth in poplar, which affects cambium activity and phloem/xylem differentiation through a complex transcriptional network involving central regulator genes such as PXY and WOX4. Gene Ontology analysis revealed that genes regulated by PagLBD3 are enriched in pathways regulating meristem development, xylem development, and auxin transport.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Forestry
Megumi Ohse, Rika Irohara, Etsushi Iizuka, Izumi Arakawa, Peter Kitin, Ryo Funada, Satoshi Nakaba
Summary: This study examines the development of sequent periderms and changes in the cellular contents of phloem parenchyma cells in Cryptomeria japonica, revealing the mechanisms of rhytidome growth and identifying the four developmental stages of annual rhytidome growth.
JOURNAL OF WOOD SCIENCE
(2022)
Article
Horticulture
Marta Joanna Monder, Przemyslaw Babelewski, Stefan Soltan
Summary: Budding is the most commonly used method for propagating rose cultivars, especially in temperate and cooler climate regions. Differences in anatomical and histological structure are the main causes of failures in achieving adhesion during budding. This study examined the root neck anatomy of five commonly used rose rootstocks and found significant differences in tissue elements such as earlywood, latewood, pith rays, phloem, vessels, and cambium layer. The arrangement of sclerenchyma and phloem fibers also varied among the studied taxa. These anatomical differences may lead to different responses to budding and the initiation of adhesion processes.
SCIENTIA HORTICULTURAE
(2023)
Article
Environmental Sciences
Bo-Fang Yana, Cheng-Feng Hu, Man Zhao, Rong-Liang Qiu, Ye-Tao Tang
Summary: A clear understanding of how Cd is allocated to grains is vital for effective management of Cd levels in cereal diets. This study found that pre-anthesis vegetative pools are an important source of Cd in rice grains. The lower leaves, internodes, and roots act as source organs, while the husks + rachis and nodes compete with the grain for remobilized Cd. These findings provide insight into the ecophysiological mechanism of Cd remobilization and can help in setting agronomic measures to reduce grain Cd levels.
ENVIRONMENTAL POLLUTION
(2023)
Article
Agronomy
Andrea Giovannini, Melissa Venturi, Saray Gutierrez-Gordillo, Luigi Manfrini, Luca Corelli-Grappadelli, Brunella Morandi
Summary: This study examines the seasonal and daily behavior of apricot fruit growth, as well as its vascular and transpiration flows. The results show that fruit growth mainly relies on xylem fluxes, with significant growth occurring in the late afternoon and night. Fruit surface conductance and dry matter accumulation are also influenced. This knowledge is important for improving apricot orchard management in terms of irrigation and fertilization.
Article
Biochemistry & Molecular Biology
Tomoyuki Furuya, Masato Saito, Haruka Uchimura, Akiko Satake, Shohei Nosaki, Takuya Miyakawa, Shunji Shimadzu, Wataru Yamori, Masaru Tanokura, Hiroo Fukuda, Yuki Kondo
Summary: Through co-expression network analysis, a new cambium-related regulatory module was identified, including the transcription factor BEH3, which plays a crucial role in the maintenance and stability of vascular stem cells. Further genetic analysis revealed that BEH3 and BES1 perform opposite functions in the regulation of vascular stem cells and the differentiation of vascular cells.
Article
Plant Sciences
Juan M. Losada, Zhe He, N. Michele Holbrook
Summary: The study revealed that Austrobaileya scandens has a low foliar xylem:phloem ratio, with isodiametric vascular elements along the midrib, but tapered across vein orders.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Peixin Zhang, Minfang Yang, Jing Lu, Longyi Shao, Ziwei Wang, Jason Hilton
Summary: The Late Paleozoic Ice Age was a significant glacial event in Earth's history, and this study focuses on reconstructing the chronostratigraphy and climate change during this period in the North China Plate. The research reveals a cool-humid and warm-humid climate mode during glacial and nonglacial periods, respectively, in the low-latitude NCP.
FRONTIERS IN EARTH SCIENCE
(2022)
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)
Article
Infectious Diseases
Faraj Hijaz, Yasser Nehela, Ozgur Batuman, Nabil Killiny
Summary: The study demonstrates the successful measurement of oxytetracycline levels in citrus phloem and xylem saps using the europium method, with or without solid-phase extraction (SPE) cleanup. Samples infected with 'Ca. L. asiaticus' showed higher inhibition of oxytetracycline fluorescence intensity. The visualization under ultraviolet light confirmed the presence of oxytetracycline in citrus saps.
Article
Paleontology
Anne-Laure Decombeix, Thibault Durieux, Carla J. Harper, Rudolph Serbet, Edith L. Taylor
Summary: The discovery of glossopterid rootlets growing in the late Permian tree trunk suggests facilitative interactions among glossopterid trees, aiding their expansion in high-palaeolatitude environments. The existence of self-facilitation may have contributed to the growth of glossopterids in various environments.
Article
Multidisciplinary Sciences
Antoine Champreux, Brigitte Meyer-Berthaud, Anne-Laure Decombeix
Review
Plant Sciences
Anne-Laure Decombeix, Jean Galtier
Summary: The study investigated the presence of periderm in the Carboniferous plant Cladoxylon taeniatum, finding a well-developed periderm closely related to secondary vascular growth, increasing the diversity of anatomical strategies for growth in this plant group.
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2021)
Article
Plant Sciences
Brigitte Meyer-Berthaud, Anne-Laure Decombeix, Romain Blanchard
Summary: This study explores the origins of Isoetales plants in the late Paleozoic by analyzing anatomically preserved lycopsid specimens from Barraba, New South Wales. The new findings reveal a unique combination of features in a new arborescent taxon, increasing the diversity of early Isoetales around the Devonian-Carboniferous boundary. The flora in Barraba is more similar to that in southern Laurussia than in China.
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2021)
Biographical-Item
Plant Sciences
Patricia E. Ryberg, Carla J. Harper, Anne-Laure Decombeix
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2021)
Article
Paleontology
Ronny Roessler, Anne-Laure Decombeix, Jean Galtier, Rodrigo Neregato, Sandra Niemirowska, Robert Noll
Summary: A study reported the discovery of an early Sphenophyllum plant with anatomically preserved structures in fossils from the Parnaiba Basin in Brazil. The plants are interwoven with other vegetation, show different developmental stages, and were found in the stems of trees. The basic anatomical structures of these plants support their close relationship to the globally distributed Sphenophyllum thonii.
PALAEONTOGRAPHICA ABTEILUNG B-PALAEOPHYTOLOGIE PALAEOBOTANY-PALAEOPHYTOLOGY
(2021)
Article
Plant Sciences
Anne-Laure Decombeix, Ignacio H. Escapa, Dario De Franceschi, Olivier Bethoux
Summary: Reflectance Transforming Imaging (RTI) enables flexible manipulation of lighting angles for investigating minute details of the 3D structure of sub-planar objects. In this study, RTI is applied to the type specimen of Gingkophyllum grassetii, clarifying its morphology and underscoring the importance of reexamining Paleozoic ginkgophyte type specimens.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2021)
Article
Plant Sciences
Brigitte Meyer-Berthaud, Anne-Laure Decombeix, Catherine Girard, Philippe Steemans, Romain Blanchard, Antoine Champreux, Mathilde Evreinoff
Summary: This paper presents a study on the Late Devonian plant macro- and micro-remains found in the Mandowa Mudstone at Barraba, NSW, Australia. The diverse plant assemblage includes both common and unique taxa, with some specific to Barraba. The closest floral resemblance is found in the New Albany Shale in eastern USA, indicating possible floral connection between Northern Gondwana and Southern Laurussia.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2021)
Editorial Material
Plant Sciences
Anne-Laure Decombeix, Brigitte Meyer-Berthaud
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2022)
Review
Plant Sciences
Anne-Laure Decombeix, Carla J. Harper, Jean Galtiera, Brigitte Meyer-Berthaud, Michael Krings
Summary: Tyloses are protoplasmic swellings that form in conducting cells in response to heartwood formation, embolism, or pathogen infection. The discovery of tyloses in permineralized wood from the Tournaisian of Australia provides the oldest fossil evidence of tylosis formation. Different stages of tylosis development were observed, ranging from small bubble-like protrusions to dense tyloses filling the lumen of conducting cells. Further research aims to explore even older fossils for evidence of tyloses and understand their roles in plant-pathogen interactions and plant hydraulic properties.
Article
Paleontology
Aixa Tosal, Anne-Laure Decombeix, Brigitte Meyer-Berthaud, Jean Galtier, Carles Martin-Closas
Summary: The first anatomically preserved wood specimens of an upland Carboniferous flora from the Iberian Peninsula are reported. The study describes two taxa, a calamitacean Equisetales (Arthropitys sp.) and a Cordaitales (Dadoxylon sp.). The well-preserved fossil wood provides significant paleoenvironmental information, indicating slightly seasonal climate in the intramontane basins of the Pyrenees towards the end of the Carboniferous.
PAPERS IN PALAEONTOLOGY
(2023)
Article
Paleontology
Agathe Toumoulin, Anne-Laure Decombeix, Carla J. Harper, Rudolph Serbet
Summary: This article describes new silicified woods of Early Jurassic age from Carapace Nunatak, South Victoria Land, formally recognizing the genera Agathoxylon and Brachyoxylon for the first time in the Jurassic of Antarctica. The imperfect preservation of the woods is attributed to the presence of fungi, whose anatomical structures are described in detail. These new specimens, along with previous reports of pollen, leaves, and cones, support the existence of several conifer families in the Early Jurassic floras of the region.
Article
Plant Sciences
Anne-Laure Decombeix, Carla J. Harper, Cyrille Prestianni, Thibault Durieux, Merlin Ramel, Michael Krings
Summary: Tyloses, which are the swellings of parenchyma cells into adjacent water-conducting cells, have been discovered in Late Devonian (approximately 360 Myr ago) Callixylon wood. This finding suggests that some of the earliest woody trees were capable of protecting their vascular system by occluding individual conducting cells in response to embolism and pathogen infection.
Article
Paleontology
Bertrand Laloux, Anne-Laure Decombeix
Summary: The fossil record of arborescent lignophytes indicates an increasing anatomical diversity during the Tournaisian, possibly due to the extinction of Archaeopteris. New silicified wood remains found in northeastern Queensland, Australia, show taxonomic affinities to Pitus and Eristophyton and have implications for future studies on Early Carboniferous arborescent lignophytes. The convergence of Eastern Gondwanan and Laurussian floras in wood anatomy and growth rings suggests a possible monsoonal circulation during the Early Carboniferous.
COMPTES RENDUS PALEVOL
(2022)
Article
Paleontology
Candela Blanco-Moren, Anne-Laure Decombeix, Cyrille Prestianni
Summary: The study revised and analyzed the stem morphology of Weichselia reticulata, revealing its unique anatomy and adaptations to stressful environments. Additionally, structures interpreted as aerophores or nectaries were found, providing new insights into the systematic affinities of Weichselia.
PAPERS IN PALAEONTOLOGY
(2021)