Anatomical and biochemical studies of fruit development in peach

Anatomical and biochemical studies in persisting and shedding seeds during the development of peach fruits

“…The data confirm the existence of a double sigmoid growth pattern representing the three stages of peach fruit devdopment as described previously (LILIEN-KIPNIS & LAVEE, 1971;CHALMERS & VAN DEN ENDE, 1975;OGNJANOV et aL, 1995). The anatomical observation showed a heterogeneous situation of the ovules in the first 40 days after anthesis.…”

“…Peach fruit growth occurs in three phases which correspond to a double sigmoid pattern (LlCmN-KII, NIS & LAVZE, 1971; CHALMERS & VAN DEN ENDE, 1975;OGNJANOV et al, 1995): rapid growth (stage I), delayed growth (stage II) and second rapid growth (stage III). Each stage is characterized by anatomical and morphological changes in seed tissues (OGNJANOV et al, 1995).…”

“…Each stage is characterized by anatomical and morphological changes in seed tissues (OGNJANOV et al, 1995). Hormonal activity plays an important role in regulatory mechanisms of fruit growth (GIANFAGNA & RACHMIED, 1986;MILLER et aL, 1987MILLER et aL, , 1988PIAGGESI et aL, 1991).…”

Is competition between mesocarp cells of peach fruits affected by the percentage of wild species genome?

“…The error of measurements done on the mean cell number for one fruit led to a low error on the mean cell volume (data not shown). The mean cell number measured for the Suncrest cultivar (89 9 10 6 cells) showed the same order of magnitude as the estimation by Ognjanov et al (1995) for the same cultivar (130 9 10 6 ). The method we used to estimate the mean cell volume probably led to an over-estimation of cell size, because of the formation of intercellular spaces (Zanchin et al 1994).…”

“…The number of cells and their sizes have been examined in many fleshy fruits (Westwood et al 1967;Bohner and Bangerth 1988;Scorza et al 1991;Higashi et al 1999;Rapoport et al 2004). In the peach, the mean cell number in the mesocarp was found to vary between 100 9 10 6 and 130 9 10 6 for three cultivars (Ognjanov et al 1995). In the apple, cell number varied between 30 9 10 6 and 120 9 10 6 and cell volume varied between 0.0023 mm 3 and 0.0037 mm 3 , according to cultivar and thinning treatment (Westwood et al 1967;Goffinet et al 1995).…”