Reproductive Development of the Christmas Rose (Helleborus niger L.): The Role of Plant Hormones

Salopek Sondi, Branka (2011) Reproductive Development of the Christmas Rose (Helleborus niger L.): The Role of Plant Hormones. Croatica Chemica Acta, 84 (2). pp. 277-285. ISSN 0011-1643

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Abstract

Christmas rose (Helleborus niger L.), a native perennial of southeastern Europe, is characterized by an interesting phenomenon in the world of flowering plants: after fertilization perianth becomes green, photosyntheticaly active, and persists during fruit development. Removal of the reproductive organs (anthers and camels) affects the elongation and vascular anatomy of flower stalk, prevents complete perianth greening, and promotes perianth senescence. Endogenous plant hormones auxins, gibberellins and cytokinins, identified and quantified in floral and fruit tissues, are shown to regulate reproductive development. Dynamics of these signaling molecules are summarized and their potential role in coordination of floral organ development are discussed.

Item Type:	Article
Uncontrolled Keywords:	Helleborus niger L.; reproductive development; auxin; cytokinin; gibberrelin; LC-MS/MS analysis; programmed cell-death; carrot daucus-carota; somatic embryogenesis; fruit-development; floral organs; zantedeschia-aethiopica; flower development; stalk elongation; seed development; auxin
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Molecular Biology
Projects:	Project title Project leader Project code Project type Molekularna regulacija biljnog razvitka [200002] Branka Salopek-Sondi 098-0982913-2829 MZOS
Depositing User:	Branka Salopek Sondi
Date Deposited:	16 Oct 2013 08:57
URI:	http://fulir.irb.hr/id/eprint/794
DOI:	10.5562/cca1820

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