Visual quantification of embolism reveals leaf vulnerability to hydraulic failure
نویسندگان
چکیده
منابع مشابه
Outside-Xylem Vulnerability, Not Xylem Embolism, Controls Leaf Hydraulic Decline during Dehydration1[CC-BY]
Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California, 90095 (C.S., S.V.T., G.P.J., M.K.B., L.S.); Department of Biology, Utah State University, Logan, Utah 84322 (C.S.); Department of Viticulture and Enology, University of California, Davis, California 95616 (C.A., A.J.M.); School of Forestry and Environmental Studies, Yale University, New Haven, Con...
متن کاملOutside-Xylem Vulnerability, Not Xylem Embolism, Controls Leaf Hydraulic Decline during Dehydration.
Leaf hydraulic supply is crucial to maintaining open stomata for CO2 capture and plant growth. During drought-induced dehydration, the leaf hydraulic conductance (Kleaf) declines, which contributes to stomatal closure and, eventually, to leaf death. Previous studies have tended to attribute the decline of Kleaf to embolism in the leaf vein xylem. We visualized at high resolution and quantified ...
متن کاملXylem embolism threshold for catastrophic hydraulic failure in angiosperm trees.
Hydraulic failure is one of the main causes of tree mortality in conditions of severe drought. Resistance to cavitation is known to be strongly related to drought tolerance and species survival in conifers, but the threshold of water-stress-induced embolism leading to catastrophic xylem dysfunction in angiosperms has been little studied. We investigated the link between drought tolerance, survi...
متن کاملLeaf vein xylem conduit diameter influences susceptibility to embolism and hydraulic decline.
Ecosystems worldwide are facing increasingly severe and prolonged droughts during which hydraulic failure from drought-induced embolism can lead to organ or whole plant death. Understanding the determinants of xylem failure across species is especially critical in leaves, the engines of plant growth. If the vulnerability segmentation hypothesis holds within leaves, higher order veins that are m...
متن کاملVulnerability of Xylem to Cavitation and Embolism
WATER RELATIONS AND THE VULNERABLE PIPELINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 EARLY EFFORTS TO DETECT CAVITATION AND EMBOLISM . . . . . . . . . . . . . . . . . . . . . 21 ACOUSTIC DETECTION OF CAVITATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Audio (Low-Frequency) Detection . . . . . . . . . . . . . . . ....
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2016
ISSN: 0028-646X,1469-8137
DOI: 10.1111/nph.13846