@article{PAR00012143,
  title = {{B}ouldering : an alternative strategy to long-vertical climbing in root-climbing hortensias},
  author = {{G}ranados {M}endoza, {C}. and {I}snard, {S}andrine and {C}harles-{D}ominique, {T}. and {V}an den {B}ulcke, {J}. and {R}owe, {N}. {P}. and {V}an {A}cker, {J}. and {G}oetghebeur, {P}. and {S}amain, {M}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the {N}eotropics, the genus {H}ydrangea of the popular ornamental hortensia family is represented by climbing species that strongly cling to their support surface by means of adhesive roots closely positioned along specialized anchoring stems. {T}hese root-climbing hortensia species belong to the nearly exclusive {A}merican {H}ydrangea section {C}ornidia and generally are long lianescent climbers that mostly flower and fructify high in the host tree canopy. {T}he {M}exican species {H}ydrangea seemannii, however, encompasses not only long lianescent climbers of large vertical rock walls and coniferous trees, but also short 'shrub-like' climbers on small rounded boulders. {T}o investigate growth form plasticity in root-climbing hortensia species, we tested the hypothesis that support variability (e.g. differences in size and shape) promotes plastic responses observable at the mechanical, structural and anatomical level. {S}tem bending properties, architectural axis categorization, tissue organization and wood density were compared between boulder and long-vertical tree-climbers of {H}. seemannii. {F}or comparison, the mechanical patterns of a closely related, strictly long-vertical tree-climbing species were investigated. {H}ydrangea seemannii has fine-tuned morphological, mechanical and anatomical responses to support variability suggesting the presence of two alternative root-climbing strategies that are optimized for their particular environmental conditions. {O}ur results suggest that variation of some stem anatomical traits provides a buffering effect that regulates the mechanical and hydraulic demands of two distinct plant architectures. {T}he adaptive value of observed plastic responses and the importance of considering growth form plasticity in evolutionary and conservation studies are discussed.},
  keywords = {{REGION} {NEOTROPICALE} ; biomechanics ; phenotypic accommodation ; phenotypic plasticity ; plant ; architecture ; stem anatomy ; wood densitometry ; {MEXIQUE} ; {CHILI} ; {ARGENTINE}},
  booktitle = {},
  journal = {{J}ournal of the {R}oyal {S}ociety {I}nterface},
  volume = {11},
  numero = {99},
  pages = {20140611},
  ISSN = {1742-5689},
  year = {2014},
  DOI = {10.1098/rsif.2014.0611},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00012143},
}