Gutenberg Open Science: The ‘male flower’ of Ricinus communis (Euphorbiaceae) interpreted as a multi-flowered unit

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-5240

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DC Field	Value	Language
dc.contributor.author	Claßen-Bockhoff, Regine	-
dc.contributor.author	Frankenhäuser, Hebert	-
dc.date.accessioned	2020-10-21T07:50:08Z	-
dc.date.available	2020-10-21T07:50:08Z	-
dc.date.issued	2020	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/5244	-
dc.description.abstract	One of the most exciting questions in botany refers to the nature of the angiosperm flower. While most flowering structures are easily identified as flowers, there are few examples lying in-between flowers and inflorescences. Such an example is the staminate unit (‘male flower’) in Ricinus communis (Euphorbiaceae) famous for its branched ‘staminal trees.’ The units were controversially interpreted in the past. Today, they are seen as flowers with multiple branched stamen-fascicles. In the present paper, the recently described floral unit meristem is used to reinterpret the staminate units in Ricinus. This meristem shares almost all characteristics with a flower meristem, but differs from it in the number of fractionation steps resulting in multi-flowered units. Reinvestigation of the development confirms previous studies illustrating up to six fractionation steps before the meristem merges into anther-formation. Fractionation starts early at a naked meristem, covers simultaneously its whole surface, shows an all-side instead of unidirectional splitting pattern and continues repeatedly. Based on the present knowledge, it is plausible to interpret the ‘male flower’ as a floral unit with multiple staminate flowers each reduced to a single anther. This interpretation is in accordance with the many examples of reduced flowers in the Euphorbiaceae.	en_GB
dc.description.sponsorship	DFG, Open Access-Publizieren Universität Mainz / Universitätsmedizin Mainz	de
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	570 Biowissenschaften	de_DE
dc.subject.ddc	570 Life sciences	en_GB
dc.title	The ‘male flower’ of Ricinus communis (Euphorbiaceae) interpreted as a multi-flowered unit	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-5240	-
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 10 Biologie	de
jgu.organisation.number	7970	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Frontiers in cell and developmental biology	de
jgu.journal.volume	8	de
jgu.pages.alternative	Art. 313	de
jgu.publisher.year	2020	-
jgu.publisher.name	Frontiers Media	de
jgu.publisher.place	Lausanne	de
jgu.publisher.uri	https://doi.org/10.3389/fcell.2020.00313	de
jgu.publisher.issn	2296-634X	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	570	de
jgu.publisher.doi	10.3389/fcell.2020.00313
jgu.organisation.ror	https://ror.org/023b0x485
Appears in collections:	JGU-Publikationen

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