Title
Contribution of corticular photosynthesis to bud development in African baobab (**Adansonia digitata** L.) and Castor bean (**Ricinus communis** L.) seedlings Contribution of corticular photosynthesis to bud development in African baobab (**Adansonia digitata** L.) and Castor bean (**Ricinus communis** L.) seedlings
Author
Faculty/Department
Faculty of Sciences. Bioscience Engineering
Publication type
article
Publication
Oxford ,
Subject
Chemistry
Biology
Source (journal)
Environmental and experimental botany. - Oxford, 1976, currens
Volume/pages
95(2013) , p. 1-5
ISSN
0098-8472
ISI
000325955700001
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The African baobab (Adansonia digitata L.) and castor bean (Ricinus communis L.) are drought resistant green-stemmed succulent plants which grow in the arid and semi-arid regions of Africa. Photosynthesis in the stems of green-stemmed plants is known to contribute to plant carbon gain especially during leafless periods. To study the contribution of stem photosynthesis in stem succulent plants, the height and stem diameter of baobab and castor bean plants grown in the greenhouse were measured. The plants were completely defoliated and subjected to different treatments: Watered with open stems (WO), watered and stems covered with aluminium foil (WC) to achieve 100% light exclusion, drought and open (DO) and drought and covered (DC). Stem coverage with aluminium foil resulted in a higher stem height and diameter during drought for baobab with similar trends seen in castor bean. Light exclusion resulted in a significantly lower bud DW production and enrichment in 13C in bud dry matter of castor bean and in stem dry matter of baobab. These show that corticular photosynthesis contributes in carbon gain in these species.
E-info
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