Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Leaf cell expansion

Tomos, A.D. (1985). The physical limitations of leaf cell expansion. In Control of Leaf Growth, ed. N.R. Baker, W.J. Davies and C. Ong, pp. 1-33. Cambridge Cambridge University Press. [Pg.92]

In general, then, we may view the auxins and GA s as promoters of cell elongation and ABA and ethylene as inhibitors. The cytokinins act as promoters of leaf cell expansion and inhibitors of stem elongation. This is somewhat oversimplified in light of the aforementioned exceptions, and the evidence that effects of applied hormones are often modified by or mediated by other hormones. [Pg.24]

Cell expansion rate, turgor, osmotic pressure, and water potential of leaf 6 and leaf 11 of wild type and invertase plants... [Pg.668]

Cytokinin stimulates cell expansion in cotyledons of a variety of dicotyledonous plants, whether grown in light or darkness (Narain and Laloraya 1974). Cyto-kinins also enhance expansion in young bean leaves (Leopold and Kawase 1964) and in other leaf types (Letham 1969), and the increased expansion occurs... [Pg.56]

Cell dimensions were determined from micrografs and the expansion rates calculated from volume changes as a function of the time during which the leaf advanced from e.g. leaf 5 to 7. [Pg.669]

A somewhat similar constraint applies to the early development of sclerophylly, a potential herbivore deterring feature. Oonstructlon of rigid cell walls and the production of lignin and other compounds would certainly slow the overall rate of leaf expansion and prolong the period during which the leaf Is a net importer of carbon reserves. [Pg.31]

The entire cell assembly is supported by two large ceramic rods running left and right of the cell parallel to and on the same height as the ion beam. The cell assembly is self-centered between the two rods by a leaf-spring setup that also allows for expansion and contraction of the assembly. [Pg.214]

Figure 1 Exploding diagram of the photo synthetic apparatus of a typical higher plant. The first expansion bubble shows a cross-section of a leaf, with the different types of cells the dark spots are the chloroplasts. The second bubble is a chloroplast the thylakoid membranes are the dark lines, the stroma is the stippled area. The third bubble shows a grana stack of thylakoids. The fourth bubble shows a schematic picture of the molecular structure of the thylakoid membrane, with a reaction center flanked by anterma complexes. (Ref. 1. Reproduced by permission of Blackwell)... Figure 1 Exploding diagram of the photo synthetic apparatus of a typical higher plant. The first expansion bubble shows a cross-section of a leaf, with the different types of cells the dark spots are the chloroplasts. The second bubble is a chloroplast the thylakoid membranes are the dark lines, the stroma is the stippled area. The third bubble shows a grana stack of thylakoids. The fourth bubble shows a schematic picture of the molecular structure of the thylakoid membrane, with a reaction center flanked by anterma complexes. (Ref. 1. Reproduced by permission of Blackwell)...
The photosynthetic efficiency mainly depends on the openness of stomata, particularly in C3 crops, while their closure tends to avoid excessive water loss. Abscisic acid (ABA) mediates water loss from the guardian cells of the stomata, which is triggered by a decrease in the water content of the leaf and inhibits leaf expansion. In muskmelon seedlings, ABA could improve the maintenance of the leaf water potential and relative water content, and reduce electrolyte leakage [55]. [Pg.203]


See other pages where Leaf cell expansion is mentioned: [Pg.55]    [Pg.57]    [Pg.258]    [Pg.55]    [Pg.57]    [Pg.258]    [Pg.41]    [Pg.667]    [Pg.669]    [Pg.670]    [Pg.55]    [Pg.225]    [Pg.230]    [Pg.52]    [Pg.136]    [Pg.934]    [Pg.74]    [Pg.31]    [Pg.24]    [Pg.55]    [Pg.56]    [Pg.411]    [Pg.1895]    [Pg.73]    [Pg.25]    [Pg.106]    [Pg.443]    [Pg.511]    [Pg.65]    [Pg.98]    [Pg.315]    [Pg.400]    [Pg.240]    [Pg.53]    [Pg.190]    [Pg.277]    [Pg.300]    [Pg.190]    [Pg.71]    [Pg.206]    [Pg.246]   
See also in sourсe #XX -- [ Pg.55 ]




SEARCH



Cell expansion

Leaf Cells

Leaf cell expansion auxin

Leaf expansion

© 2024 chempedia.info