Universität zu Köln

Giovannetti, Marco ORCID: 0000-0003-4637-9880, Tolosano, Matteo, Volpe, Veronica, Kopriva, Stanislav ORCID: 0000-0002-7416-6551 and Bonfante, Paola ORCID: 0000-0003-3576-8530 (2014). Identification and functional characterization of a sulfate transporter induced by both sulfur starvation and mycorrhiza formation in Lotus japonicus. New Phytol., 204 (3). S. 609 - 620. HOBOKEN: WILEY. ISSN 1469-8137

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Abstract

Arbuscular mycorrhizas (AMs) are one of the most widespread symbioses in the world. They allow plants to receive mineral nutrients from the symbiotic fungus which in turn gets back up to 20% of plant carbon and completes its life cycle. Especially in low-nutrient conditions, AM fungi are capable of significantly improving plant phosphate and nitrogen acquisition, but fewer data are available about sulfur (S) nutrition. We focused on S metabolism in Lotus japonicus upon mycorrhizal colonization under sulfur starvation or repletion. We investigated both tissue sulfate concentrations and S-related gene expression, at cell-type or whole-organ level. Gene expression and sulfate tissue concentration showed that Rhizophagus irregularis colonization can improve plant S nutritional status under S starvation. A group 1 sulfate transporter, LjSultr1;2, induced by both S starvation and mycorrhiza formation, was identified. Its transcript was localized in arbuscule-containing cells, which was confirmed with a promoter-GUS assay, and its function was verified through phenotyping of TILLING mutants in nonmycorrhizal seedlings.LjSultr1;2 thus appears to encode a key protein involved in plant sulfate uptake. In contrast to phosphate transporters, a single gene, LjSultr1;2, seems to mediate both direct and symbiotic pathways of S uptake in L.japonicus.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Giovannetti, Marco UNSPECIFIED orcid.org/0000-0003-4637-9880 UNSPECIFIED Tolosano, Matteo UNSPECIFIED UNSPECIFIED UNSPECIFIED Volpe, Veronica UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopriva, Stanislav UNSPECIFIED orcid.org/0000-0002-7416-6551 UNSPECIFIED Bonfante, Paola UNSPECIFIED orcid.org/0000-0003-3576-8530 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-424842
DOI:	10.1111/nph.12949
Journal or Publication Title:	New Phytol.
Volume:	204
Number:	3
Page Range:	S. 609 - 620
Date:	2014
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1469-8137
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PHOSPHATE TRANSPORTER; ARBUSCULAR MYCORRHIZAS; PLANT NUTRITION; GENE-EXPRESSION; NITROGEN; GROWTH; SYMBIOSIS; ROLES; ASSIMILATION; REVEALS Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/42484