Effects of Di-n-Butyl Phthalate on Mycorrhizal and Non-Mycorrhizal Cowpea Plants |
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| Authors: | S-G Wang X-G Lin R Yin Y-L Hou |
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| Institution: | (1) Department of Soil and Water Conservation, CSIC-CEBAS, P.O. Box 4195, Campus de Espinardo, E-30100 Murcía, Spain;(2) CSIC-Institute of Natural Resources and Agrobiology, P.O. Box 1052, E-41080 Sevilla, Spain;(3) Department of Microbiology, CSIC-EEZ, Profesor Albareda 1, E-18008 Granada, Spain |
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| Abstract: | This study examined the effect of mycorrhizal colonization with Glomus intraradices on physiological parameters and foliar nutrient concentrations in Olea europaea L. subsp. sylvestris and Rhamnus lycioides L. seedlings subjected to well-watered or drought-stressed conditions. Under drought stress, mycorrhizal O. europaea seedlings showed significantly higher photosynthetic and transpiration rates, stomatal conductance and foliar P concentration
than its similarly-sized non-mycorrhizal counterpart. The intrinsic water use efficiency (photosynthetic rate to stomatal
conductance ratio) was not change in O. europaea and decreased in R. lycioides seedlings due to mycorrhizal colonization under both well-watered and drought-stress conditions.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | intrinsic water use efficiency Glomus intraradices Mediterranean ecosystems stomatal conductance water stress |
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