Interaction Between Flowering Initiation and Photosynthesis

摘要: The vast majority of the biological processes are dependent on solar radiation. Photosynthesis is main process which intermediate between light and plant development. Plants utilize radiation as a source energy for photosynthesis, drives water nutrient transport (Ballare Casal, 2000). Besides they use it environmental cue to modulate wide range physiological responses from germination fruiting (Suetsugu Wada, 2003), modulates several metabolic pathways affecting cell metabolism, also basis structure molecule production, thus part what produced by photosynthesis used in photomorphogenesis (Quail, 2007). That composes complex development program called photomorphogenesis. From many developmental that define form function, flowering exceptional interest. A lot horticulturally important plants depended upon flowering. Much effort being put into regulating timing Depending particular species sensitivity photoperiod, transition apex reproductive stage affected duration (Leavy Dean, 1998; Nocker, 2001). Many flowering-time studies based Arabidopsis thaliana model because classic events, daylenght sensing mechanisms can be mediated (Bernier et al., 1993). Over years have led four separate but herewith interdependent models control flowering: photoperiodic induction, non-photoperiodic (autonomous/vernalization), induction gibberellins carbohydrates. floral biennial photoperiod-sensitive cold-required associated with an increased content carbohydrates apical meristems (Blazquez, Weigel According Corbesier al. (1998), concentration sucrose increases dramatically phloem exudates photoinduction both short long day plants, even when photoinductive treatment accumulation nonstructural limits feedback regulation (Araya 2006; Araya 2010; Paul Driscoll, 1997; Foyer, 2001;). Moreover, may function long-distance signalling during 1993; Leavy 1998). Meanwhile, glucose has been shown suppress expression photosynthetic genes induce leaf senescence, via hexokinase pathway (Dai 1999). (2006) states, repression occurs mainly leaves accumulates starch. Though starch per se not metabolically active,