Universität zu Köln

Ausma, Ties ORCID: 0000-0001-9435-4376, Bansal, Vidisha, Kraaij, Marjan ORCID: 0000-0001-9722-9087, Verloop, Anne C. M., Gasperl, Anna ORCID: 0000-0003-1129-4510, Muller, Maria, Kopriva, Stanislav ORCID: 0000-0002-7416-6551, De Kok, Luit J. ORCID: 0000-0003-1601-4506 and van der Kooi, Casper J. ORCID: 0000-0003-0613-7633 (2021). Floral displays suffer from sulphur deprivation. Environ. Exp. Bot., 192. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-7307

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Abstract

Nutrient deficiency is known to constrain plant growth in numerous ways, but how it impacts floral displays and pollination success remains unclear. Here we investigate how insufficient availability of sulphur - a vital plant nutrient that is a limiting factor in natural and agricultural regions throughout the world - influences the production of floral displays in Brassica rapa, Physalis philadelphica and three Petunia species with differently coloured flowers. Sulphur deficiency led to a drastic reduction in the number of open flowers, an aberrant flower morphology and smaller pollen with an altered mineral nutrient content. Intriguingly, sulphur deprivation also led to a clear reduction in pigmentation of yellow flowers, but not in flowers with white, purple and red colours. The pale yellow flower colour was due to decreased amounts of violaxanthin, lutein and other carotenoids, suggesting that the carotenoid synthesis pathway is particularly susceptible to sulphur deficiency. Additional experiments with nitrogen and phosphorus depletion confirmed that observed colour and morphological changes were not a general nutrient limitation response, but could be ascribed to sulphur depletion specifically. Taken together, our results showed that (mild) sulphur deficiency deteriorates a suite of floral traits, and that the effects may cascade to pollinators and so have the potential to undermine (agro-)ecosystem functioning.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ausma, Ties UNSPECIFIED orcid.org/0000-0001-9435-4376 UNSPECIFIED Bansal, Vidisha UNSPECIFIED UNSPECIFIED UNSPECIFIED Kraaij, Marjan UNSPECIFIED orcid.org/0000-0001-9722-9087 UNSPECIFIED Verloop, Anne C. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gasperl, Anna UNSPECIFIED orcid.org/0000-0003-1129-4510 UNSPECIFIED Muller, Maria UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopriva, Stanislav UNSPECIFIED orcid.org/0000-0002-7416-6551 UNSPECIFIED De Kok, Luit J. UNSPECIFIED orcid.org/0000-0003-1601-4506 UNSPECIFIED van der Kooi, Casper J. UNSPECIFIED orcid.org/0000-0003-0613-7633 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-581102
DOI:	10.1016/j.envexpbot.2021.104656
Journal or Publication Title:	Environ. Exp. Bot.
Volume:	192
Date:	2021
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-7307
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RAPE BRASSICA-NAPUS; POLLEN GRAIN-SIZE; SOIL-NITROGEN; NUTRIENT AVAILABILITY; GENE-EXPRESSION; PLANT NUTRIENT; FLOWER; DEFICIENCY; COLOR; POLLINATION Multiple languages Plant Sciences; Environmental Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58110