1991
DOI: 10.1104/pp.97.1.182
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Effect of Microtubule Stabilization on the Freezing Tolerance of Mesophyll Cells of Spinach

Abstract: Freezing, dehydration, and supercooling cause microtubules in mesophyll cells of spinach (Spinacia oleracea L. cv Bloomsdale) to depolymerize (ME Bartolo, JV Carter, Plant Physiol [1991] 97: 175-181). The objective of this study was to determine whether the LT50 (lethal temperature: the freezing temperature at which 50% of the tissue is killed) of spinach leaf tissue can be changed by diminishing the extent of microtubule depolymerization in response to freezing. Also examined was how tolerance to the compo… Show more

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Cited by 34 publications
(10 citation statements)
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“…However, stabilization of MTs by taxol was reported to decrease freezing tolerance (e.g. Bartolo & Carter, ), which was obviously not congruent with a model, where cold hardiness was explained in terms of MT stability. These apparent discrepancies can be resolved, when the timing of events is considered: Whereas a high microtubular dynamics is beneficial during the early, sensory phase of the response to low temperature, the subsequent adaptive events eventually culminate in the formation of stable MT bundles (Nick, ).…”
Section: Discussionmentioning
confidence: 77%
“…However, stabilization of MTs by taxol was reported to decrease freezing tolerance (e.g. Bartolo & Carter, ), which was obviously not congruent with a model, where cold hardiness was explained in terms of MT stability. These apparent discrepancies can be resolved, when the timing of events is considered: Whereas a high microtubular dynamics is beneficial during the early, sensory phase of the response to low temperature, the subsequent adaptive events eventually culminate in the formation of stable MT bundles (Nick, ).…”
Section: Discussionmentioning
confidence: 77%
“…(wheat) roots, Wang and Nick, ; Abdrakhamanova et al ., ] . Cold hardening proceeds slower after treatment with taxol (Kerr and Carter, ; Bartolo and Carter, ), indicating that microtubules must disassemble to a certain degree in order to trigger this adaptive response to cold.…”
Section: Secondary Membrane Stress: Microtubules and Cold Adaptationmentioning
confidence: 97%
“…The discovery that desiccation causes the reversible depolymerization of the cortical microtubules in a liverwort suggests that this might well be a feature of DT in bryophytes. Although de-and rehydration biology of the cytoskeleton in vascular plants has been largely overlooked, numerous studies into cytoskeletal dynamics in response to cold and freezing stress (Carter and Wick 1984;Kerr and Carter 1990; Bartolo andCarter 1991a, 1991b;Wallin and Stromberg 1995;Wang and Nick 2001;Abdrakhamanova et al 2003) have shown that low temperature and extracellular ice formation promote microtubule depolymerization in several plants, including onion (Carter and Wick 1984), rye (Kerr and Carter 1990), and spinach (Bartolo and Carter 1991b), and in gametophyte cells of the fern Adiantum capillus-veneris (Murata and Wada 1991). Bartolo and Carter (1991b) suggested that it is the dehydration component of the freezing stress that induces microtubule depolymerization.…”
Section: General Cytological Changesmentioning
confidence: 99%