Ascorbic acid effect on the onset of cell proliferation in pea root

5 Digging out Roots: Pattern Formation, Cell Division, and Morphogenesis in Plants

“…The low levels of AA in the quiescent center appear to be actively maintained by the local high level of ascorbate oxidase, suggesting a function for AA in the regulation of cell division. This is consistent with the observation that cells in the quiescent center have extended G1 phases (Clowes, 1975) and that AA may be necessary for G1/S transition in the cell cycle (Liso et al, 1984(Liso et al, , 1988Citterio et al, 1994). Taken together, these results suggest a mechanism that operates to lower the GSH and AA pools or shift their redox balance not only in the quiescent center but also in proximally located cells of the meristem to restrict the extent of the meristematic zone.…”

Shading the whole vines during young fruit development decreases ascorbate accumulation in kiwi

“…Ascorbate contributes to plant growth in several ways (Alhagdow et al 2007, Citterio et al 1994, Conklin et al 2006, Davey et al 2000, Dowdle et al 2007). For example, silencing of GalLDH in tomato leads to a drop in GalLDH activity to 80% of that in normal plants, and, although their T‐AsA content is unchanged, modified plants have smaller leaves and fruits, mainly as a consequence of reduced cell expansion (Alhagdow et al 2007).…”

“…l ‐Ascorbic acid (AsA), also known as vitamin C or ascorbate, is necessary for all living eukaryotic cells. It is involved in plant growth and development (Davey et al 2000), influences division and expansion of cells (Citterio et al 1994, Conklin 2001), and has an important role in resistance to environmental stresses (Davey et al 2000, Ishikawa et al 2006). Although plants and most animals can produce AsA, primates and some other animal species have lost their ability to synthesize it, and humans must secure vitamin C via dietary uptake (Davey et al 2000), primarily from fruits and vegetables.…”

Ascorbic Acid Suppresses Germination and Dynamic States of Water in Wheat Seeds

“…Therefore, the suppression of germination affected by ascorbate solutions suggests that H 2 O 2 produced in the early imbibition period was scavenged by exogenous ascorbic acid. In contrast, ascorbate is required from the beginning of germination for cell division in pea roots (Citterio et al, 1994) and cell expansion in Lupinus albus seedlings (Arrigoni et al, 1997). Wheat seeds at the end of their development are devoid of both ascorbic acid and ascorbate peroxidase (De Gara et al, 2003).…”