Recently, we showed that microRNA399s (miR399s) control inorganic phosphate (Pi) homeostasis by regulating the expression of PHO2 encoding a ubiquitin-conjugating E2 enzyme 24. Arabidopsis (Arabidopsis thaliana) plants overexpressing miR399 or the pho2 mutant overaccumulate Pi in shoots. The association of Pi translocation and coexpression of miR399s and PHO2 in vascular tissues suggests their ...

Two experiments were conducted to characterize changes associated with ontogenetic aging in coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and to identify possible maturation "markers" for this species. In the first experiment (Experiment 1), scions of ages 1, 4 and 9 years were collected from four seed zones in field progeny tests and grafted onto 1-year-old rootstocks. In Experime...

The application of naphthalene acetic acid (NAA) different concentrations (25, 50, and 75 ppm) was applied to grafted mango seedlings identify its effect on callus formation, diameter, shoot emergence, plant survival. NAA effectively reduced the number days mainly using ppm. Lower than this concentration exhibited a comparable same as untreated seedlings. survival showed no significant by apply...

The rhizosphere is where crucial processes for the productivity of viticultural systems occur. composition bacterial communities associated with grapevines known to depend on plant genotype. However, genotype grafted differs between scion and rootstock; role each unclear. To untangle effect rootstock, rRNA (V4–V5 region 16S rRNA) extracted from grape varieties Riesling Mueller-Thurgau ungrafted...