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Key message Minor vein traits have a stronger association with leaf water deficit tolerance and structural properties than major veins in deciduous woody species. Abstract Hierarchical leaf venation commonly occurs in angiosperms, with veins of different orders. Physiological roles and costs of minor veins (> third order) are well documented; however, those of major veins (first to third order)...
Key message Bundle sheath extensions (BSEs) are linked to leaf gas exchange and drought tolerance but not to leaf mechanical and structural properties across species from a cool temperate forest. Abstract Bundle sheath extensions (BSEs) account for the physiological differences between heterobaric and homobaric species. The boundary that divides these two groups, however, has been elusive; and the...
Radial variations in vessel features (vessel lumen area and frequency) of four tropical tree species grown in tropical savanna, monsoon, and rainforest climates were investigated to detect indistinct annual rings. Leaf and soil water potentials were measured periodically to show annual variations in water availability and their relationship to radial variations in vessel features. In addition, the...
We measured radial variation of carbon isotope composition and vessel traits in tree species in seasonally dry forests of Northeast Thailand to explore a more reliable and amenable method of tropical dendrochronology for trees that lack visually detectable and consistent growth rings. Six Dipterocarpaceae species (3 Shorea, 2 Dipterocarpus, and 1 Hopea species) with indistinct or irregular growth...
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