Article
Biochemistry & Molecular Biology
Kangding Yao, Yandong Yao, Zhiqi Ding, Xuejuan Pan, Yongqi Zheng, Yi Huang, Zhuohui Zhang, Ailing Li, Chunlei Wang, Changxia Li, Weibiao Liao
Summary: In this study, members of the tomato FLA family were characterized and analyzed. The majority of these FLA members were highly expressed in roots and showed responsiveness to plant hormones ABA and MeJA. They also responded positively to salt, cold, and drought stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Mona C. Maass, Salimeh Saleh, Holger Militz, Cynthia A. Volkert
Summary: TEM and AFM imaging show radial orientations and whorl-like arrangements of cellulose microfibrils near the S1/S2 interface in wood cell walls, consistent with wrinkling during lamellar cell growth.
Article
Forestry
Mario Vega, Peter Harrison, Matthew Hamilton, Rob Musk, Paul Adams, Brad Potts
Summary: The study found that wood density and modulus of elasticity of Eucalyptus nitens plantations increased with age, while microfibril angle decreased with age; wood density and MOE decreased with elevation, while microfibril angle increased. The variation in wood properties was mainly associated with precipitation.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Forestry
N. A. S. Gonya, Z. Naghizadeh, C. B. Wessels
Summary: This study investigated the variation of collapse and shrinkage in trees and their relationships with warp in sawn boards. Factors such as extractives content, density, permeability, age, genetics, log position, and radial position of boards were found to influence collapse and shrinkage in Eucalyptus grandis and Eucalyptus grandis-urophylla. The mismatch between radial and tangential collapse in wedges and sawn board specimens suggests the need for further research on anatomical factors affecting collapse in these tree species.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2022)
Article
Forestry
Yusuke Kita, Junji Sugiyama
Summary: This study addresses the challenge of accurately identifying Chamaecyparis obtusa and Thujopsis spp. by introducing an anatomical criterion based on micro fibril angle (MFA). By using preprocessed MFA images and convolutional neural network (CNN), the study achieved a nearly 90% accuracy in classifying the two species in present and old wood specimens. The research also explained distinct features of the wood species using the MFA anisotropy in the S-2 wall induced by pit existence, providing new insights into wood anatomy and species identification.
Article
Materials Science, Multidisciplinary
Mingyang Chen, Chi Zhang, Liao-Liang Ke
Summary: Through molecular dynamics simulation and shear-lag analysis, we revealed the biomechanical contribution of the functionally graded structure of cellulose microfibril in the wood cell wall. The stiffness gradient significantly reduces stress concentration on the interface and enhances the debonding resistance of the cell wall. We also discovered a novel dual debonding mode, which is more complex than the conventional debonding mode observed in fiber-reinforced composites.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2023)
Article
Forestry
Naiara Conceicao Marques de Souza, Jose Tarcisio Lima, Bruno Charles Dias Soares
Summary: This study utilized X-ray diffraction to measure the microfibril angle of dry wood and green wood, finding that the MFA in dry wood is slightly lower than in green wood.
TREES-STRUCTURE AND FUNCTION
(2022)
Article
Biochemistry & Molecular Biology
Huiting Huang, Yingjing Miao, Yuting Zhang, Li Huang, Jiashu Cao, Sue Lin
Summary: In this study, a total of 293 putative AGP-encoding genes were identified in Brassica rapa, indicating a potential role of AGPs in plant growth and development, especially in male reproductive development. Additionally, three members of the FLA subfamily were found to play a key role in pollen germination process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Plant Sciences
Dagmar Hromadova, Ales Soukup, Edita Tylova
Summary: The responsiveness to environmental conditions and developmental plasticity of root systems are crucial for plant fitness, with AGPs playing an essential role at the cellular level in cell expansion, differentiation, root growth regulation, interactions with other organisms, and environmental responses. Despite the complexity of cell wall functional and regulatory networks, the exact molecular mechanisms of AGP-action remain largely unknown, as summarized in this evolving field of root biology.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Forestry
Vilius Gendvilas, Mark Neyland, Manuel F. Rocha-Sepulveda, Geoffrey M. Downes, Mark Hunt, Andrew Jacobs, Dean Williams, Mario Vega, Julianne O'Reilly-Wapstra
Summary: Eucalypt plantations in Tasmania have mainly been used for fibre production, but there is growing interest in solid wood production. The study found that wood properties vary more within a tree than as a result of thinning. Stiffness is lowest at the bottom of the tree and highest in the middle region. Commercial thinning has some impact on the basic density of the wood and results in radial changes in wood properties.
Article
Biochemical Research Methods
Mira Viljanen, Sampo Muranen, Outi Kinnunen, Sebastian Kalbfleisch, Kirsi Svedstrom
Summary: This study used X-ray diffraction to examine the cellulose microfibril orientation in phloem fibres of Silver birch saplings and found that a slight but consistent difference in microfibril angle was detected between tension wood and opposite wood. The results suggest that the nanostructure of phloem fibres is involved in the posture control of trees.
Article
Materials Science, Paper & Wood
Yusuke Kita, Titis Setiyobudi, Tatsuya Awano, Arata Yoshinaga, Junji Sugiyama
Summary: This study aimed to measure and analyze the cell-by-cell cellulose microfibril angle and anatomy of Japanese hardwood species using advanced imaging techniques. The results revealed that cell wall thickness and microfibril angle are correlated in certain cell types of wood species.
Article
Forestry
Jiaqi Li, Xiandi Su, Jing Guo, Wei Xu, Lei Feng, Tongli Wang, Fangfang Fu, Guibin Wang
Summary: In this study, the sex ratio of 42 ginkgo samples was determined to be 1:1 through DNA molecular identification. Significant differences were observed between male and female ginkgoes in terms of growth traits and wood properties, with female ginkgoes having wider tracheids and thicker cell walls. Principal component analysis showed slight differences between the sexes in growth traits, while no separation was found in wood properties. Membership function values indicated that male ginkgo exhibited a more robust phenotype.
Article
Agricultural Engineering
Ruimin Jia, Ligang Yu, Jing Chen, Lifang Hu, Shang Cao, Yang Wang
Summary: This study identified 59 BnFLAs in Brassica napus and categorized them into 4 groups based on conserved motifs, gene structure, and phylogenetic relationships. BnFLAs play important roles in stress response and phytohormone regulation, and may interact with transcription factors like ERF. Most BnFLAs are localized in the cell membrane, and they are actively involved in the growth and developmental processes of B. napus. Furthermore, BnFLAs respond significantly to salt and Plasmodiophora brassicae (Pb) stresses, and BnFLA39 negatively regulates defense responses to Pb stress in Arabidopsis.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Plant Sciences
Yingjing Miao, Jiashu Cao, Li Huang, Youjian Yu, Sue Lin
Summary: In this study, a new Arabidopsis FLA gene, FLA14, was identified as a pollen grain-specific gene with localization along the cell membrane and in Hechtian strands. Overexpression of FLA14 resulted in abnormal pollen grains with reduced fertility, while loss-of-function mutant showed precocious pollen germination under high moisture conditions inside the mature anthers. These findings suggest a role for FLA14 in pollen development and preventing premature pollen germination.
Article
Multidisciplinary Sciences
Antanas Spokevicius, Lynette Taylor, Emma Melder, Kim Van Beveren, Josquin Tibbits, Nicky Creux, Gerd Bossinger
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2016)
Article
Plant Sciences
J. Hyles, S. Vautrin, F. Pettolino, C. MacMillan, Z. Stachurski, J. Breen, H. Berges, T. Wicker, W. Spielmeyer
JOURNAL OF EXPERIMENTAL BOTANY
(2017)
Article
Biotechnology & Applied Microbiology
Qiang Lu, Fenjuan Shao, Colleen Macmillan, Iain W. Wilson, Karen van der Merwe, Steven G. Hussey, Alexander A. Myburg, Xiaomei Dong, Deyou Qiu
PLANT BIOTECHNOLOGY JOURNAL
(2018)
Article
Plant Sciences
Gerd Bossinger, Antanas V. Spokevicius
JOURNAL OF EXPERIMENTAL BOTANY
(2018)
Review
Plant Sciences
Larissa Machado Tobias, Antanas V. Spokevicius, Heather E. McFarlane, Gerd Bossinger
Article
Forestry
Nadeeshani Karannagoda, Antanas Spokevicius, Steven Hussey, Gerd Bossinger
Article
Plant Sciences
Yingxuan Ma, Colleen P. MacMillan, Lisanne de Vries, Shawn D. Mansfield, Pengfei Hao, Julian Ratcliffe, Antony Bacic, Kim L. Johnson
Summary: This study suggests that FLA11 and FLA12 may act as cell surface sensors in plant xylem cells, allowing them to sense mechanical stimuli and regulate secondary cell wall (SCW) development. Overexpression of FLA11 promotes earlier SCW development, while overexpression of FLA12 increases cellulose content. These proteins play a role in modulating SCW responses to mechanical stress.
Article
Biochemistry & Molecular Biology
Nadeeshani Karannagoda, Antanas Spokevicius, Steven Hussey, Hua Cassan-Wang, Jacqueline Grima-Pettenati, Gerd Bossinger
Summary: Our study demonstrates that Eucalyptus grandis IAA13 plays a crucial role in regulating xylem fibre and vessel development through interactions with ARF2, ARF5, ARF6, and ARF19. This provides insights into the regulatory role of EgrIAA13 during xylogenesis.
PLANT MOLECULAR BIOLOGY
(2022)
Review
Plant Sciences
Warren C. Conaty, Katrina J. Broughton, Lucy M. Egan, Xiaoqing Li, Zitong Li, Shiming Liu, Danny J. Llewellyn, Colleen P. MacMillan, Philippe Moncuquet, Vivien Rolland, Brett Ross, Demi Sargent, Qian-Hao Zhu, Filomena A. Pettolino, Warwick N. Stiller
Summary: The CSIRO cotton breeding program in Australia focuses on diverse and integrated research with commercial outcomes to develop high performing cotton cultivars. It has global impact and works with commercial partners to enhance yield and fiber quality, develop pest and disease-resistant germplasm, and integrate new technologies into the breeding program. Strong commercial partnerships and field phenotyping have contributed to the success of the program.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Xiaoqing Li, Madeline Mitchell, Vivien Rolland, Sue Allen, Colleen MacMillan, Filomena Pettolino
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Plant Sciences
Dhika Amanda, Monika S. Doblin, Colleen P. MacMillan, Roberta Galletti, John F. Golz, Antony Bacic, Gwyneth C. Ingram, Kim L. Johnson
Article
Biotechnology & Applied Microbiology
Colleen P. MacMillan, Hannah Birke, Aaron Chuah, Elizabeth Brill, Yukiko Tsuji, John Ralph, Elizabeth S. Dennis, Danny Llewellyn, Filomena A. Pettolino
Article
Biotechnology & Applied Microbiology
Antanas V. Spokevicius, Josquin Tibbits, Philippe Rigault, Marc-Alexandre Nolin, Caroline Mueller, Andrew Merchant