Universität zu Köln

Romero-Montepaone, Sofia, Poodts, Sofia, Fischbach, Patrick, Sellaro, Romina ORCID: 0000-0002-4412-1352, Zurbriggen, Matias D. and Casal, Jorge J. (2020). Shade avoidance responses become more aggressive in warm environments. Plant Cell Environ., 43 (7). S. 1625 - 1637. HOBOKEN: WILEY. ISSN 1365-3040

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Abstract

When exposed to neighbour cues, competitive plants increase stem growth to reduce the degree of current or future shade. The aim of this work is to investigate the impact of weather conditions on the magnitude of shade avoidance responses in Arabidopsis thaliana. We first generated a growth rate database under controlled conditions and elaborated a model that predicts daytime hypocotyl growth as a function of the activity of the main photosensory receptors (phytochromes A and B, cryptochromes 1 and 2) in combination with light and temperature inputs. We then incorporated the action of thermal amplitude to account for its effect on selected genotypes, which correlates with the dynamics of the growth-promoting transcription factor PHYTOCHROME-INTERACTING FACTOR 4. The model predicted growth rate in the field with reasonable accuracy. Thus, we used the model in combination with a worldwide data set of current and future whether conditions. The analysis predicted enhanced shade avoidance responses as a result of higher temperatures due to the geographical location or global warming. Irradiance and thermal amplitude had no effects. These trends were also observed for our local growth rate measurements. We conclude that, if water and nutrients do not become limiting, warm environments enhance the shade avoidance response.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Romero-Montepaone, Sofia UNSPECIFIED UNSPECIFIED UNSPECIFIED Poodts, Sofia UNSPECIFIED UNSPECIFIED UNSPECIFIED Fischbach, Patrick UNSPECIFIED UNSPECIFIED UNSPECIFIED Sellaro, Romina UNSPECIFIED orcid.org/0000-0002-4412-1352 UNSPECIFIED Zurbriggen, Matias D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Casal, Jorge J. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-336447
DOI:	10.1111/pce.13720
Journal or Publication Title:	Plant Cell Environ.
Volume:	43
Number:	7
Page Range:	S. 1625 - 1637
Date:	2020
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1365-3040
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PHYTOCHROME-B; ARABIDOPSIS-THALIANA; BRASSICA-RAPA; BLUE-LIGHT; TEMPERATURE; GROWTH; CRYPTOCHROME; RED; COINCIDENCE; ELONGATION Multiple languages Plant Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/33644