Journal
BIOLOGIA PLANTARUM
Volume 46, Issue 4, Pages 637-639Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1024880121096
Keywords
intrinsic water use efficiency; Glomus intraradices; Mediterranean ecosystems; stomatal conductance; water stress
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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.
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