Journal: Plant Physiology

Article Title: UV-B Inhibits Leaf Growth through Changes in Growth Regulating Factors and Gibberellin Levels ^{1 [OPEN]}

doi: 10.1104/pp.17.00365

Figure Lengend Snippet: Effects of UV-B radiation on leaf elongation and epidermal cell length. A, Representative image of leaf 4 at 12 d after emergence from plants that were grown in the presence (UV-B) or absence (Control) of solar UV-B. B, Representative image of different cells from the base to the tip of leaf 4. C, Cell length profiles of files adjacent to stomatal rows in the abaxial epidermis measured for control and UV-B-exposed plants. The data were obtained using leaf 4 from 12 plants for which the length of all cells in the basal 100 mm of two cell files adjacent to stomatal files was measured in relation of position. To enable averaging across leaves, the data were smoothed and interpolated into 50-mm spaced data points as described in “Materials and Methods.” For each condition, the average (n = 5) and corresponding se are shown at each position.

Article Snippet: Arabidopsis ( Arabidopsis thaliana ) plants were exposed for 4 h to UV-B radiation from UV-B bulbs (Bio-Rad ChemiDoc XRS UV-B lamps, 302-nm maximum spectra; catalog no. 1708097) in a growth chamber at 100 µmol m −2 s −1 photosynthetic active radiation at plant height using fluora lamps (OSRAM L36W/77) and standard fluorescent tubes (Sylvania F38W/T8/154) and a 16/8-h photoperiod.

Techniques:

Journal: Plant Physiology

Article Title: UV-B Inhibits Leaf Growth through Changes in Growth Regulating Factors and Gibberellin Levels ^{1 [OPEN]}

doi: 10.1104/pp.17.00365

Figure Lengend Snippet: Global transcriptome changes in leaf 4 GZ by UV-B radiation analyzed using PageMan. A, Transcripts encoding proteins in primary and secondary metabolism. B, Transcripts encoding proteins in regulatory pathways. Transcripts that are down-regulated by UV-B are represented by blue boxes, while up-regulated transcripts are represented by red boxes. The color scale is shown in the top right corner. CHO, carbohydrate; TCA, tricarboxylic acid cycle; OPP, oxidative pentose phosphate pathway.

Article Snippet: Arabidopsis ( Arabidopsis thaliana ) plants were exposed for 4 h to UV-B radiation from UV-B bulbs (Bio-Rad ChemiDoc XRS UV-B lamps, 302-nm maximum spectra; catalog no. 1708097) in a growth chamber at 100 µmol m −2 s −1 photosynthetic active radiation at plant height using fluora lamps (OSRAM L36W/77) and standard fluorescent tubes (Sylvania F38W/T8/154) and a 16/8-h photoperiod.

Techniques: