APOSPORY IN PTERIDOPHYTES PDF

The investigations in Pteridophytes probably of most interest and importance ing of apogamy and apospory, it is important to define these terms at the outset. Some of the most important characters of Pteridophytes are as follows: Apogamy and Apospory: Sometimes deviation in the regular alternation if generations. Apogamy, apospory and parthenogenesis in the Pteridophytes II Steil, W.N.. Bot Rev: This is a supplement to the review which appeared in Bot.

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Apogamy was induced in the fern Ampelopteris prolifera by culturing the gametophytes on mineral nutrients supplemented with various concentrations of sucrose. The differentiation of this gametophytic callus was conditioned by sucrose and auxin concentrations of the medium.

13 Important Characters of Pteridophytes – Explained!

In the presence of sucrose, calli responded like prothalli, while in the presence of 2,4-D, differentiation was delayed or completely inhibited. Apospory was induced on the sexual cotyledonary and juvenile sporeling leaveS.

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Leaves with petiole, excised from aseptically raised pterkdophytes from excised cultured buds, also exhibited apospory, while no success was achieved with the excised leaves of the parent plantS. Rhizome segments of various length were cultured on media containing different concentrations of sucrose. The differentiation of rhizome segments into gametophytes or sporophytes was conditioned by the length of the rhizome segments and the sucrose concentration of the medium.

The pteridpphytes significance of all the results is discussed. Most users should sign in with their email address. If you originally registered with a username please use that to sign in. To purchase short term access, please sign in to your Oxford Academic account above.

Apogamy, apospory and parthenogenesis in the Pteridophytes II

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Close mobile search navigation Article navigation. In vitro studies on apogamy, apospory and controlled differentiation of rhizome segments of the fern, Ampelopteris prolifera Retz. Abstract Apogamy was induced in the fern Ampelopteris prolifera by culturing the gametophytes on mineral nutrients supplemented with apsopory concentrations of sucrose. You do not currently have access to this article.

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