Universität zu Köln

Mishra, Priyanka ORCID: 0000-0003-1798-2306, Roggen, Adrian, Ljung, Karin ORCID: 0000-0003-2901-189X and Albani, Maria C. ORCID: 0000-0002-8215-020X (2020). Natural Variation in Adventitious Rooting in the Alpine Perennial Arabis alpina. Plants-Basel, 9 (2). BASEL: MDPI. ISSN 2223-7747

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Abstract

Arctic alpine species follow a mixed clonal-sexual reproductive strategy based on the environmental conditions at flowering. Here, we explored the natural variation for adventitious root formation among genotypes of the alpine perennial Arabis alpina that show differences in flowering habit. We scored the presence of adventitious roots on the hypocotyl, main stem and axillary branches on plants growing in a long-day greenhouse. We also assessed natural variation for adventitious rooting in response to foliar auxin spray. In both experimental approaches, we did not detect a correlation between adventitious rooting and flowering habit. In the greenhouse, and without the application of synthetic auxin, the accession Wca showed higher propensity to produce adventitious roots on the main stem compared to the other accessions. The transcript accumulation of the A. alpina homologue of the auxin inducible GH3.3 gene (AaGH3.3) on stems correlated with the adventitious rooting phenotype of Wca. Synthetic auxin, 1-Naphthaleneacetic acid (1-NAA), enhanced the number of plants with adventitious roots on the main stem and axillary branches. A. alpina plants showed an age-, dosage- and genotype-dependent response to 1-NAA. Among the genotypes tested, the accession Dor was insensitive to auxin and Wca responded to auxin on axillary branches.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Mishra, Priyanka UNSPECIFIED orcid.org/0000-0003-1798-2306 UNSPECIFIED Roggen, Adrian UNSPECIFIED UNSPECIFIED UNSPECIFIED Ljung, Karin UNSPECIFIED orcid.org/0000-0003-2901-189X UNSPECIFIED Albani, Maria C. UNSPECIFIED orcid.org/0000-0002-8215-020X UNSPECIFIED
URN:	urn:nbn:de:hbz:38-346210
DOI:	10.3390/plants9020184
Journal or Publication Title:	Plants-Basel
Volume:	9
Number:	2
Date:	2020
Publisher:	MDPI
Place of Publication:	BASEL
ISSN:	2223-7747
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 MATING SYSTEM; VEGETATIVE PROPAGATION; EUCALYPTUS-SALIGNA; ARABIDOPSIS; AUXIN; GENE; TEMPERATURE; L. Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/34621