Mild temperature "stress" and callose synthesis.
Fjalë kyçe
Abstrakt
Seedlings of Zea mays L., Sorghum vulgare, Pisum sativum L., Phaseolus aureus, Glycine max L. and Lycopersicum esculentum were grown at 20°C and at 26°C. The seedlings were fixed in glutaraldehyde and sections were examined for aniline-blue-induced fluorescence, which is supposedly indicative of β-1,3-glucans or callose. There was much more aniline-blue fluorescence in Zea, Glycine and Phaseolus seedlings grown at 20°C compared with 26°C whereas Pisum and Lycopersicum seedlings grown at 26°C showed more fluorescence than those grown at 20°C. In Zea, large deposits of fluorescent material were particularly noticeable in the walls of elongating cells around the shoot apex and in root-cap cells, and appeared to be closely associated with a few of the pitfields. The remaining pitfields showed the normal, low level of aniline-blue fluorescence.