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1

The arrangement of cortical microtubules in plant epidermis is sensitive to the changes in cell wall stresses

100%

Rusin T., Szeja A., Hejnowicz Z.

Cellular and Molecular Biology Letters

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1998

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tom 03

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nr 2

2

Cortical microtubule disorientation is connected with root cell growth in clinorotated Brassica rapa seedlings

86%

Kalinina I. M.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

3

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Orientational variability of parallel arrays of cortical microtubules under the outer cell wall of the Helianthus hypocotyl epidermis

86%

Hejnowicz Z., Burian A., Dobrowolska I., Kolano E.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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nr 3

201-206

The epidermis of Helianthus hypocotyl can be peeled off and, in the form of detached strips can be used as a model system to study the effect on cortical microtubule (cMTs) orientation of these factors, which are difficult to be manipulated in situ, such as apoplastic pH or applied stress. In the first step, however, the orientation and reorientation of cMTs in the epidermis in situ must be described. The cMTs under the epidermal wall in hypocotyl epidermis at different positions along the hypocotyl and on its opposite sides were studied by means of immunostaining, using epi-fluorescence microscopy. The angle λ that parallel array of cMTs makes with cell longitudinal axis was measured. The variation of λ in a population of cells was documented by λ-histogram (frequency of cells exhibiting a particular λą∆λ plotted against λ value). The histograms were of either transverse type (maximum at λ ~90o, denoted as type A) or oblique type (two maxima on both sides of the transverse direction, denoted as type B) in the apical part of the hypocotyl, and were either of B type or of longitudinal type (maximum at λ ~0o or 180o denoted as type C) in the basal part. The change from A or B to C basipetally may be considered as due to the developmental trend in cMT orientation. The occurrence of B above A in some hypocotyls in their apical part strengthens the hypothesis on the autonomous reorientation of cMTs. The intermingled occurrence of A and B reorientation in the upper part of hypocotyl is interpreted as a manifestation of a subtle control of cell growth in latitudinal direction. The majority of histograms were asymmetric showing predominance of cMT parallel arrays inclined as the middle part of the letter Z.

4

The removal of epidermis causes change in the orientation of cortical microtubules in the cortex cells of sunflower hypocotyl - significance of tissue stresses

86%

Borowska-Wykret D.

Polish Journal of Natural Sciences. Supplement

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2003

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tom 01

5

Cortical localization of alpha- and gamma-tubulin and the assembly of cortical microtubule cytoskeleton in hypotrichous ciliate Euplotes eurystomus

72%

Sheng X., Sheng Y., Liu Y., Wang J.

Acta Protozoologica

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2017

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tom 56

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nr 3

6

Chiral changes of cortical microtubule orientations in epidermis of sunflower hypocotyls. The effect of blue and red light

72%

Burian A.

Acta Societatis Botanicorum Poloniae

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2007

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tom 76

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nr 4

269-275

Light and developmental processes affect the cortical microtubule (cMT) orientation. The cMT orientation with a special regard to its chirality was analyzed under the outer epidermal cell walls in different regions of sunflower hypocotyls kept in darkness and after irradiation with blue and red light. The results show that the cMT orientation depends on the cell position along hypocotyl, but generally cMTs are oblique. The oblique orientation has defined chirality: either of Z-form (right-handed) or S-form (left-handed). In the lower region of hypocotyls the Z-form dominates. After irradiation of hypocotyls with blue light this domination has been maintained and appeared also in the upper region. In contrast, after irradiation with red light the Z-form domination has not been apparent. It is proposed that in darkness, variations of cMT orientations in the epidermis along the hypocotyl are due to developmental processes, while blue and red light affect the cMT orientation via "shifting" these processes backward and forward, respectively.

7

Disturbances of cell differentiation in deformated roots after treatment by herbicides with antimicrotubular action

72%

Tarasenko L. V., Kundelchuk O. P., Blume Y. B.

Biological Bulletin of Poznań. Supplement

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1997

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tom 34

8

Microtubule heterogeneity of Ornithogalum umbellatum ovary epidermal cells: non-stable cortical microtubules and stable lipotubuloid microtubules

58%

Kwiatkowska M., Stepinski D., Polit J. T., Poplonska K., Wojtczak A.

Folia Histochemica et Cytobiologica

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2011

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tom 49

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