Biomechanics and functional morphology of a climbing monocot

Climbing monocots can develop into large bodied plants despite being confined by primary growth. In our study on Flagellaria indica we measured surprisingly high stem biomechanical properties (in bending and torsion) and we show that the lack of secondary growth is overcome by a combination of tissue maturation processes and attachment mode. This leads to higher densities of mechanically relevant tissues in the periphery of the stem and to the transition from self-supporting to climbing growth. The development of specialised attachment structures has probably underpinned the evolution of numerous other large bodied climbing monocot taxa.

[1]  Sarah T. Wagner,et al.  Escaping the lianoid habit: evolution of shrub-like growth forms in Aristolochia subgenus Isotrema (Aristolochiaceae). , 2012, American journal of botany.

[2]  H. Linder.  The Evolutionary History of the Poales/Restionales: A Hypothesis , 1987 .

[3]  Thomas Speck,et al.  Biomechanics of plant growth forms: the trouble with fossil plants , 1998 .

[4]  Shigeyasu Amada,et al.  Fiber texture and mechanical graded structure of bamboo , 1997 .

[5]  T. Speck,et al.  Mechanical architecture and development in Clematis: implications for canalised evolution of growth forms. , 2003, The New phytologist.

[6]  Notburga Gierlinger,et al.  Chemical Imaging of Poplar Wood Cell Walls by Confocal Raman Microscopy , 2006, Plant Physiology.

[7]  P. Vorster.  Genera Palmarum. A classification of palms based on the work of Harold E. Moore, Jr. , 1988 .

[8]  T Speck,et al.  Brittleness of twig bases in the genus Salix: fracture mechanics and ecological relevance. , 2000, Journal of experimental botany.

[9]  J. A. Weinstock.  Rattan: Ecological balance in a borneo rainforest swidden , 2008, Economic Botany.

[10]  K. Niklas.  A statistical approach to biological factors of safety: bending and shearing in Psilotum axes , 1998 .

[11]  Thomas Speck,et al.  Mechanical, chemical and X-ray analysis of wood in the two tropical lianas Bauhinia guianensis and Condylocarpon guianense: variations during ontogeny , 2003, Planta.

[12]  V. Angyalossy,et al.  A new method to obtain good anatomical slides of heterogeneous plant parts , 2010 .

[13]  Robert Singerman,et al.  Biomechanics—Materials—A practical approach , 1995 .

[14]  A. L. Takhtadzhi︠a︡n.  Diversity and classification of flowering plants , 1997 .

[15]  Hadley Wickham,et al.  ggplot2 - Elegant Graphics for Data Analysis (2nd Edition) , 2017 .

[16]  V. Angyalossy,et al.  Liana anatomy: a broad perspective on structural evolution of the vascular system , 2014 .

[17]  Thomas Speck,et al.  Morphological aspects of self-repair of lesions caused by internal growth stresses in stems of Aristolochia macrophylla and Aristolochia ringens , 2010, Proceedings of the Royal Society B: Biological Sciences.

[18]  S. Carlquist.  The use of ethylenediamine in softening hard plant structures for paraffin sectioning. , 1982, Stain technology.

[19]  C. Neinhuis,et al.  A Comparative Analysis of the Mechanical Role of Leaf Sheaths of Poaceae, Juncaceae, and Cyperaceae , 2013 .

[20]  S. A. Etnier.  Twisting and Bending of Biological Beams: Distribution of Biological Beams in a Stiffness Mechanospace , 2003, The Biological Bulletin.

[21]  S. Carlquist.  Comparative Wood Anatomy: Systematic, Ecological, and Evolutionary Aspects of Dicotyledon Wood , 1990 .

[22]  Steven Vogel,et al.  Twist-to-Bend Ratios and Cross-Sectional Shapes of Petioles and Stems , 1992 .

[23]  K. Niklas.  The elastic moduli and mechanics of Populus tremuloides (Salicaceae) petioles in bending and torsion , 1991 .

[24]  Thomas Speck,et al.  The Growth Form of Croton pullei (Euphorbiaceae) - Functional Morphology and Biomechanics of a Neotropical Liana , 2001 .

[25]  R Core Team,et al.  R: A language and environment for statistical computing. , 2014 .

[26]  K J Niklas,et al.  Methods for calculating factors of safety for plant stems. , 1999, The Journal of experimental biology.

[27]  Daniel E. Austin.  Diversity and classification of flowering plants , 1998, Economic Botany.

[28]  W. Silk,et al.  Moving with climbing plants from Charles Darwin's time into the 21st century. , 2009, American journal of botany.

[29]  N. Rowe,et al.  Global diversification of a tropical plant growth form: environmental correlates and historical contingencies in climbing palms , 2015, Front. Genet..

[30]  N. Rowe,et al.  The climbing habit in palms: Biomechanics of the cirrus and flagellum. , 2008, American journal of botany.

[31]  Thomas Speck,et al.  The Potential of Plant biomechanics in functional biology and systematics , 2003 .

[32]  N. Rowe,et al.  Biomechanics of climbing palms and how they climb , 2009, Plant signaling & behavior.

[33]  Eric H. Metzler,et al.  Plant Biomechanics : An Engineering Approach to Plant Form and Function , 2017 .

[34]  Biomechanics and development of the climbing habit in two species of the South American palm genus Desmoncus (Arecaceae). , 2005, American journal of botany.

[35]  P. Tomlinson,et al.  Stem vascular architecture in the American climbing palm Desmoncus (Arecaceae-Arecoideae-Bactridinae) , 2003 .

[36]  P. Tomlinson,et al.  FEATURES OF DICHOTOMIZING APICES IN FLAGELLARIA INDICA (MONOCOTYLEDONES) , 1977 .

[37]  K. Kubitzki,et al.  Flowering Plants. Monocotyledons: Alismatanae and Commelinanae (except Gramineae) , 1998 .

[38]  C. Neinhuis,et al.  G-fibres in storage roots of Trifolium pratense (Fabaceae): tensile stress generators for contraction. , 2010, The Plant journal : for cell and molecular biology.

[39]  H. Linder,et al.  The taxonomy of Flagellaria (Flagellariaceae) , 2014, Australian Systematic Botany.

[40]  Sarah T. Wagner,et al.  Major trends in stem anatomy and growth forms in the perianth-bearing Piperales, with special focus on Aristolochia. , 2014, Annals of botany.

[41]  T. Speck,et al.  Diversity of Mechanical Architectures in Climbing Plants: An Evolutionary Perspective , 2004, Journal of Plant Growth Regulation.

[42]  B. Kasal,et al.  Mechanical Properties of Genetically Engineered Young Aspen with Modified Lignin Content and/or Structure , 2010 .

[43]  B. Kukachka.  Sectioning Refractory Woods for Anatomical Studies. , 1977 .

[44]  H. E. Moore,et al.  Genera Palmarum: A Classification of Palms Based on the Work of Harold E. Moore, Jr. , 1987 .

[45]  N. Rowe,et al.  Mechanical role of the leaf sheath in rattans. , 2008, The New phytologist.

[46]  S. Vogel.  Living in a physical world XI. To twist or bend when stressed , 2007, Journal of Biosciences.

[47]  Thomas Speck,et al.  Ecology and Biomechanics : A Mechanical Approach to the Ecology of Animals and Plants , 2006 .

[48]  Thomas Speck,et al.  Diversity of mechanical architecture in climbing plants: an ecological perspective , 2006 .

[49]  F. Bongers,et al.  Different biomechanical design and ecophysiological strategies in juveniles of two liana species with contrasting growth habit. , 2014, American journal of botany.

[50]  Shigeyasu Amada,et al.  Fracture properties of bamboo , 2001 .

[51]  T. Speck,et al.  Growth habit and mechanical architecture of the sand dune-adapted climber Clematis flammula var. maritima L. , 2003, Annals of botany.

[52]  R. Ricklefs,et al.  SPECIES RICHNESS WITHIN FAMILIES OF FLOWERING PLANTS , 1994, Evolution; international journal of organic evolution.