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Information Journal Paper

Title

MEGAGAMETOPHYTE AND EMBRYO DEVELOPMENT IN FIVE SPECIES OF ASTRAGALUS (FABACEAE)

Pages

  167-174

Abstract

 The development of the megagametophyte, embryo and the endosperm inAstragalus eriocarpus (sect. Malacothrix), A. glaucacanthus (sect. Poterion), A. remotijugus (sect. Caprini), A. chrysostachys (sect. Hymenostegis) and A. compactus (sect. Rhacophorus) were examined. The ovule are campylotropous, bitegmic and crassinucellate, integuments form a zig-zag shaped microphyle. The EMBRYOGENESIS was similar in the species.Megagametophyte development follows the monosporicPolygonum type and the embryo development follows the Onagrad type. The fusion of the polar nuclei, development of the endosperm, digestion of the nucellus, seed abortion and SUSPENSOR development show major differences among studied species. Furthermore, the size and shape of the SUSPENSOR is quite variable among the five species. These characters are compared with the other species of ASTRAGALUSand also their phylogenetic significance is discussed. Also we describe a case of POLYEMBRYONY for the first time inA. remotijugus.

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    APA: Copy

    FARHANGISABET, M., MAJD, A., NEJADSATTARI, T., MAASSOMI, A.A., & MAZOUJI, A.. (2011). MEGAGAMETOPHYTE AND EMBRYO DEVELOPMENT IN FIVE SPECIES OF ASTRAGALUS (FABACEAE). THE IRANIAN JOURNAL OF BOTANY, 17(2 (34)), 167-174. SID. https://sid.ir/paper/111802/en

    Vancouver: Copy

    FARHANGISABET M., MAJD A., NEJADSATTARI T., MAASSOMI A.A., MAZOUJI A.. MEGAGAMETOPHYTE AND EMBRYO DEVELOPMENT IN FIVE SPECIES OF ASTRAGALUS (FABACEAE). THE IRANIAN JOURNAL OF BOTANY[Internet]. 2011;17(2 (34)):167-174. Available from: https://sid.ir/paper/111802/en

    IEEE: Copy

    M. FARHANGISABET, A. MAJD, T. NEJADSATTARI, A.A. MAASSOMI, and A. MAZOUJI, “MEGAGAMETOPHYTE AND EMBRYO DEVELOPMENT IN FIVE SPECIES OF ASTRAGALUS (FABACEAE),” THE IRANIAN JOURNAL OF BOTANY, vol. 17, no. 2 (34), pp. 167–174, 2011, [Online]. Available: https://sid.ir/paper/111802/en

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