New insight into pectin effects on mesophyll conductance in four species of deciduous Forest.

The amount of pectin in the cell wall is considered a critical element regulating cell wall porosity. Thus, it is likely to influence the diffusional processes particularly that from the substomatal cavities to the carboxylation sites in the chloroplast stroma (i.e.

Analysis of mesophyll conductance in five understory herbaceous species.

Mesophyll conductance ( ) has received over time much less attention than stomatal conductance ( ), although it affects leaf photosynthesis to about the same extent as stomatal conductance does. The objective of this study was to analyze the trend in five understory herbaceous species growing in a close-canopy forest in the north-west of Italy. In particular, three of analyzed species were monocots: Lam.

Secondary metabolites profile and physiological leaf traits in wild and cultivated under different nutritional .

Leaf secondary metabolites production and physiological leaf traits were analyzed in wild type (WT) and ( 'Tonda Gentile Trilobata', TGT) under different nutrient supplies. Three treatments were applied: control treatment with no fertilizer supply (WT and TGT), low nutrient treatment (WT and TGT) and high nutrient treatment (WT and TGT). The analysis of leaf extracts showed a higher concentration of Quercitrin and Myricitrin, with the highest concentrations of both the compounds in WT than TGT.