Stabilizing microtubules with taxol increases microfilament stability during freezing of rye root tips

Chu, Boyang; Kerr, Gregory P.; Carter, J. V.

doi:10.1111/j.1365-3040.1993.tb00512.x

Cited by 22 publications

(3 citation statements)

References 21 publications

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“…Several authors have shown that AFs colocalize with MTs in various plant cell types, for instance, in algal cells (Menzel and Schliwa, 1986), pollen tubes (Pierson et al, 1989;Lancelle and Hepler, 1991), and differentiating xylem cells (Fukuda and Kobayashi, 1989). Moreover, pharmacological treatments specifically affecting one cytoskeletal type had impacts on the other (Seagull, 1990;Wernicke and Jung, 1992;Chu et al, 1993;Kimura and Mizuta, 1994;Collings et al, 1996;Tominaga et al, 1997). It is clear that MTs and AFs interact also in both the preprophase band and phragmoplast during the plant cell cycle (e.g., Palevitz, 1987a,b;McCurdy and Gunning, 1990;Ding et al, 1991;Eleftheriou and Palevitz, 1992).…”

Section: Intracellular Interactionsmentioning

confidence: 99%

Actin cytoskeleton in plants: From transport networks to signaling networks

Volkmann

Baluška

1999

Microsc. Res. Tech.

144

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The plant actin cytoskeleton is characterized by a high diversity in regard to gene families, isoforms, and degree of polymerization. In addition to the most abundant F‐actin assemblies like filaments and their bundles, G‐actin obviously assembles in the form of actin oligomers composed of a few actin molecules which can be extensively cross‐linked into complex dynamic meshworks. The role of the actomyosin complex as a force generating system — based on principles operating as in muscle cells — is clearly established for long‐range mass transport in large algal cells and specialized cell types of higher plants. Extended F‐actin networks, mainly composed of F‐actin bundles, are the structural basis for this cytoplasmic streaming of high velocities On the other hand, evidence is accumulating that delicate meshworks built of short F‐actin oligomers are critical for events occurring at the plasma membrane, e.g., actin interventions into activities of ion channels and hormone carriers, signaling pathways based on phospholipids, and exo‐ and endocytotic processes. These unique F‐actin arrays, constructed by polymerization‐depolymerization processes propelled via synergistic actions of actin‐binding proteins such as profilin and actin depolymerizing factor (ADF)/cofilin are supposed to be engaged in diverse aspects of plant morphogenesis. Finally, rapid rearrangements of F‐actin meshworks interconnecting endocellular membranes turn out to be especially important for perception‐signaling purposes of plant cells, e.g., in association with guard cell movements, mechano‐ and gravity‐sensing, plant host–pathogen interactions, and wound‐healing. Microsc. Res. Tech. 47:135–154, 1999. © 1999 Wiley‐Liss, Inc.

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Section: Intracellular Interactionsmentioning

confidence: 99%

Actin cytoskeleton in plants: From transport networks to signaling networks

Volkmann

Baluška

1999

Microsc. Res. Tech.

144

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“…Microtubules are sensitive to temperature, and low temperature tends to depolymerize or disassemble microtubules in plant cells such as root cells of rye (Secale cereale; Kerr and Carter 1990a, b;Chu et al 1993), leaf cells of spinach (Spinacia oleracea; Bartolo and Carter 1991a, b) and tobacco (Nicotiana tabacum;Å ström et al 1991), root cells of maize (Zea mays; Baluska et al 1992Baluska et al , 1993 and elongating root cells of winter wheat (Triticum aestivum;Wang and Nick 2001;Nick 2008). Therefore, plant-science manuals generally suggest that low temperature is inappropriate for the visualization of microtubules after chemical fixation (Chaffey 2002;Funada 2002).…”

Section: Introductionmentioning

confidence: 99%

Cold stability of microtubules in wood-forming tissues of conifers during seasons of active and dormant cambium

Begum

Shibagaki

Furusawa

et al. 2011

Planta

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The cold stability of microtubules during seasons of active and dormant cambium was analyzed in the conifers Abies firma, Abies sachalinensis and Larix leptolepis by immunofluorescence microscopy. Samples were fixed at room temperature and at a low temperature of 2-3°C to examine the effects of low temperature on the stability of microtubules. Microtubules were visible in cambium, xylem cells and phloem cells after fixation at room temperature during seasons of active and dormant cambium. By contrast, fixation at low temperature depolymerized microtubules in cambial cells, differentiating tracheids, differentiating xylem ray parenchyma and phloem ray parenchyma cells during the active season. However, similar fixation did not depolymerize microtubules during cambial dormancy in winter. Our results indicate that the stability of microtubules in cambial cells and cambial derivatives at low temperature differs between seasons of active and dormant cambium. Moreover, the change in the stability of microtubules that we observed at low temperature might be closely related to seasonal changes in the cold tolerance of conifers. In addition, low-temperature fixation depolymerized microtubules in cambial cells and differentiating cells that had thin primary cell walls, while such low-temperature fixation did not depolymerize microtubules in differentiating secondary xylem ray parenchyma cells and tracheids that had thick secondary cell walls. The stability of microtubules at low temperature appears to depend on the structure of the cell wall, namely, primary or secondary. Therefore, we propose that the secondary cell wall might be responsible for the cold stability of microtubules in differentiating secondary xylem cells of conifers.

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“…Information on the effects of low temperatures and abscisic acid (ABA) on the structural organization of MTs and MFs is scarce and contradictory (Chu et al, 1993;Eun and Lee, 1997;Jiang et al, 1996;Pihakaski-Maunsbach and Puhakainen, 1995;Rikin et al, 1983;Sakiyama and Shibaoka, 1990). Nothing is known about the interaction of these components on the cold acclimation of plants.…”

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confidence: 99%