Thigmomorphogenic responses of epiphytic bromeliads to mechanically induced stress

Abstract Vascular epiphytes represent almost 10% of all terrestrial plant diversity. Despite the extensive research on functional ecology and challenges epiphytic growth, there is still very little known how exposure to mechanically induced stress affects growth development epiphytes. Therefore, this study investigated effect such mechanical biomass allocation bromeliads. Juvenile plants two species were subjected types in greenhouse—permanent displacement temporary, recurring flexing. ANOVAs used test possible treatment effects root–shoot ratio, root diameter, area distribution ratio. Contrary previous studies herbaceous plants, these bromeliads showed no change shoot properties either species. The ratio increased disturbed Guzmania lingulata but not Vriesea sp. Treatment inconsistent: a was significant only first 2 months experiment G. , whilst none treatments negatively affected All some degree curvature their stems leaves against obtain an upright position. This probably related maintenance tank. provides quantitative qualitative data understand thigmomorphogenic responses stress. Future could include field surveys quantify on-site stresses corresponding morphological changes vascular