Xylem network connectivity and embolism spread in grapevine(Vitis vinifera L.)
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چکیده
منابع مشابه
Direct observation and modelling of embolism spread between xylem conduits: a case study in Scots pine.
Xylem embolism is one of the main processes involved in drought-related plant mortality. Although its consequences for plant physiology are already well described, embolism formation and spread are poorly evaluated and modelled, especially for tracheid-based species. The aim of this study was to assess the embolism formation and spread in Pinus sylvestris as a case study using X-ray microtomogr...
متن کاملXylem structure and connectivity in grapevine (Vitis vinifera) shoots provides a passive mechanism for the spread of bacteria in grape plants.
BACKGROUND AND AIMS Bacterial leaf scorch occurring in a number of economically important plants is caused by the xylem-limited bacterium Xylella fastidiosa (Xf). In grapevine, Xf systemic infection causes Pierce's disease and is lethal. Traditional dogma is that Xf movement between vessels requires the digestion of inter-vessel pit membranes. However, Yersinia enterocolitica (Ye) (a bacterium ...
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 . . . . . . . . . . . . . . . ....
متن کاملA method for measuring hydraulic conductivity and embolism in xylem
Hydraulic conductivity of the xylem is computed as the quotient of mass fiow rate and pressure gradient. Measurements on excised plant stems can be difficult to interpret because of timedependent reductions in fiow rate, and because of variable degrees of embolism. Using Acer saccharum Marsh, stems, we found that certain perfusing solutions including dilute fixatives (e.g. 0.05% formaldehyde) a...
متن کاملMaintenance of xylem Network Transport Capacity: A Review of Embolism Repair in Vascular Plants
Maintenance of long distance water transport in xylem is essential to plant health and productivity. Both biotic and abiotic environmental conditions lead to embolism formation within the xylem resulting in lost transport capacity and ultimately death. Plants exhibit a variety of strategies to either prevent or restore hydraulic capacity through cavitation resistance with specialized anatomy, r...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2021
ISSN: 0032-0889,1532-2548
DOI: 10.1093/plphys/kiab045