DEVELOPMENT OF TRANSFER CELLS IN THE HAUSTORIUM - VAGINULA COMPLEX OF <i>PHYSCOMITRIUM CYATHICARPUM</i> MITT. - AN ULTRASTRUCTURAL STUDY
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- CHAUHAN EKLAVYA
- Plant Cytochemistry and Ultrastructure Laboratory, Department of Botany, University of Delhi
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- LAL MANOHAR
- Plant Cytochemistry and Ultrastructure Laboratory, Department of Botany, University of Delhi
Bibliographic Information
- Other Title
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- Development of transfer cells in the haustorium--vaginula complex of Physcomitrium cyathicarpuim Mitt.--an ultrastructural study
- Development of transfer cells in the ha
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Abstract
<p> The results of an ultrastructural study on the development of transfer cells at the sporophyte-gametophyte junction of Physcomitrium cyathicarpum Mitt. are reported and discussed. Salient ultrastructural features characterize the three developmental stages. Ultrastructural attributes of the peripheral foot cells suggest that structurally reduced sporophyte of P. cyathicarpum, while exhibiting a simplified structure of the foot, has adapted itself for the maximum area of contact for the absorption of water and nutrients from the vaginula cells. During the early states of development, numerous mitochondria, ER and golgi are seen associated near the wall labyrinth. A large population of elongated plastids with a well developed grana-fretwork system and ample quantities of starch are observed in the first and second developmental stages of the haustorial foot. It is only in the third developmental stage that the plastids start degenerating. Notwithstanding the constraints of light and minimal amounts of CO2, making the location of the green foot non-condusive to photosynthesis, starch is seen accoumulated in the plastids. This suggests the possibility of a different type of photosynthesis operative under such limiting conditions.</p>
Journal
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- The Journal of the Hattori Botanical Laboratory
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The Journal of the Hattori Botanical Laboratory 63 (0), 373-394, 1987-12-01
Hattori Botanical Laboratory
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Details 詳細情報について
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- CRID
- 1390570397340080896
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- NII Article ID
- 130008071312
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- NII Book ID
- AA10665989
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- ISSN
- 24328944
- 00730912
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- NDL BIB ID
- 3158531
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed