Wyniki wyszukiwania

1

Ultrastructure of Gladiolus x hybridus root endodermis

100%

Rudzinska-Langwald A.

Acta Societatis Botanicorum Poloniae

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2002

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tom 71

|

nr 4

2

Morphology and anatomy of the root system of new potato cultivars Part II. Root anatomy

86%

Lotocka B., Kozak M., Rykaczewska K.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

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2016

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nr 279

3

Confirmation by X-ray microanalysis a barrier role of endodermis in lead transport in Lemna minor L.

86%

Samardakiewicz S., Idzikowska K., Wozny A.

Biological Bulletin of Poznań. Supplement

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1997

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tom 34

4

Ultrastructure of endodermis and stele cells of dehydrated Polypodium vulgare L. rhizomes

72%

Bagniewska-Zadworna A., Zenkteler E.

Acta Biologica Cracoviensia. Series Botanica

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2006

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tom 48

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nr 2

Polypodium vulgare L. rhizome cells tolerate water deficit stress to different degrees. This study examined the extent of ultrastructural changes in the endodermis and stelar elements in response to mannitol dehydration treatment. Cytological observations showed that the rhizomes possess structural adaptations to withstand drying by maintaining water inside the stele or activating mechanisms that mitigate stress. There are Casparian strips on the walls of the endodermis, and thicker cell walls of cortex parenchyma cells bordered with endodermal cells. Numerous electron-dense vesicles accumulate in dehydrated endodermal cells, making the organelles not visible. In parenchymatous cells of pericycle and vascular parenchyma cells, only nuclei with slightly condensed chromatin, smaller starch grains and vesicle formation were observed in the cytoplasm after dehydration. Changes in cell membrane ultrastructure were not identified. Incubation of the rhizome in abscisic acid prior to dehydration did not produce ultrastructural changes.

5

Vascular system within developing root nodules of Lupinus luteus L. Part 1. Juvenile stage

58%

Lotocka B.

Acta Biologica Cracoviensia. Series Botanica

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2008

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tom 50

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nr 1

The ontogeny and (ultra)structure of vascular tissue in Lupinus luteus L. root nodules were studied by light and transmission electron microscopy in juvenile nodule primordia up to the 11th day after inoculation. Vascular meristem originated from centripetally dedifferentiated root cortical parenchyma, endodermis and pericycle. The vascular trace was formed between bacteroid tissue initials and the root stele. In the trace's proximal part, cambial strands connecting the vascular trace and root cambium were formed. In the distal part, non-anastomosing vascular bundles started differentiating from the trace at the end of the juvenile stage. In lupine, the formative stage of the indeterminate root nodule vascular system was shown to be unique within the legumes.

Ograniczanie wyników

2 Acta Biologica Cracoviensia. Series Botanica

1 Acta Societatis Botanicorum Poloniae

1 Biological Bulletin of Poznań. Supplement

1 Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

2 Lotocka B.

1 Bagniewska-Zadworna A.

1 Idzikowska K.

1 Kozak M.

1 Rudzinska-Langwald A.

1 Rykaczewska K.

1 Samardakiewicz S.

1 Wozny A.

1 Zenkteler E.

1 2016

1 2008

1 2006

1 2002

1 1997

Ultrastructure of Gladiolus x hybridus root endodermis

Morphology and anatomy of the root system of new potato cultivars Part II. Root anatomy

Confirmation by X-ray microanalysis a barrier role of endodermis in lead transport in Lemna minor L.

Ultrastructure of endodermis and stele cells of dehydrated Polypodium vulgare L. rhizomes

Vascular system within developing root nodules of Lupinus luteus L. Part 1. Juvenile stage