The effects of lead and kinetin on greening barley leaves
1995
Wozny, A. | Schneider, J. | Gwozdz, E.A. (Adam Mickiewicz Univ., Poznan (Poland). Inst. of Experimental Biology)
The content of lead in greening etiolated barley leaves remained the same, regardless the time of incubation of excised leaves in the presence of lead ions (8-24 h). The lead deposits have not been detected within mesophyll cells, but were found in intercellular spaces of mesophyll, in guard cells and in cuticle covering stomata. This suggests that lead may be transported in the leaves via transpiration stream. Lead reduced the content of chlorophyll, especially chlorophyll b content and the average number of grana, whereas in the presence of kinetin the content of chlorophyll increased. In the combined treatment (lead + kinetin) kinetin diminished the inhibitory effect of lead on the chlorophyll content.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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