Phyllody is a flower abnormality in which leaf-like structures replace flower organs in all whorls. Here, we investigated the origin and the molecular mechanism of phyllody phenotype in Rosa chinensis cv. Viridiflora, an ancient naturally occurring Chinese mutant cultivar. Reciprocal grafting experiments and microscopy analyses, demonstrated that the phyllody phenotype in Viridiflora is not ass...

Phloem-specific proteins (P proteins) are particularly useful markers to investigate long-distance trafficking of macromolecules in plants. In this study, genus-specific molecular probes were used in combination with intergeneric grafts to reveal the presence of a pool of translocatable P protein subunits. Immunoblot analyses demonstrated that Cucurbita spp P proteins PP1 and PP2 are translocat...

Sanitization using chemical agents to reduce the microbiological load on surface of agricultural products have drawback leaving residues. Conversely, physical treatments, such as ultraviolet radiation C (UV-C), are residue-free, non-toxic and environmentally friendly. Ripe figs perishable, exhibiting an epidermis with low resistance mechanical treatment, high water content ostiole, which is ope...

Variation in leaf-level gas exchange among widely planted genetically improved loblolly pine (Pinus taeda L.) genotypes could impact stand-level water use, carbon assimilation, biomass production, C allocation, ecosystem sustainability and biogeochemical cycling under changing environmental conditions. We examined uniformity in leaf-level light-saturated photosynthesis (A(sat)), stomatal conduc...

a major portion of the iranian fig (ficus carica) industry is located in high-salinity regions, and salinity is an important limiting factor in the production of this fruit. the present study was conducted to investigate the changes of leaf antioxidant-enzyme activity, proline and total protein content in two fig cultivars with two leaf shapes: ‘anjir sabz’ with lobate and palmate leaves, and ‘...

Lilium cv. Stargazer plants were held for 2 weeks at 4°C, either in darkness or in light (40 mmol m s). Another series of plants was held in darkness after pre-treatment with 100 mg l GA4+7. Changes in major senescence parameters were determined during storage at 4°C and during 6 days after transferring the plants to 22°C. Foliar sprays of GA4+7 or supplemental light prevented rapid leaf senesc...

In the cuticular wax mixtures from leaves of pea (Pisum sativum) cv Avanta, cv Lincoln, and cv Maiperle, more than 70 individual compounds were identified. The adaxial wax was characterized by very high amounts of primary alcohols (71%), while the abaxial wax consisted mainly of alkanes (73%). An aqueous adhesive of gum arabic was employed to selectively sample the epicuticular wax layer on pea...