Abstract:
:Gas exchange and plant luminescence (delayed light emission) of a single red kidney bean leaf undergoing synchronous oscillations in gas exchange were recorded and analyzed. Introduction of 1.1 microliter per liter SO(2) during these oscillations produced increases in plant luminescence that, when averaged over a portion of the leaf, oscillated in phase with the gas exchange oscillations. However, examination of a video record of the plant luminescence showed not only that luminescence intensities tended to be localized within discrete areas of the leaf, but that the time-dependence of luminescence intensities within these regions varied considerably from the period, amplitude, and often phase of the overall gas exchange oscillations. The video recording also showed that changes in luminescence intensities appeared to migrate across the leaf in wave-like patterns. These data are interpreted in terms of localized fluctuations in gaseous conductances of the leaf.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Ellenson JLdoi
10.1104/pp.78.4.904subject
Has Abstractpub_date
1985-08-01 00:00:00pages
904-8issue
4eissn
0032-0889issn
1532-2548journal_volume
78pub_type
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