Phenotypic analysis of the Arabidopsis heat stress response during germination and early seedling development

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Silva Correia, J (Author) Other; Freitas, S (Author) Other; Tavares, RM (Author) Other; Lino Neto, T (Author) Other; Azevedo, H (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: PLANT METHODS

Vol. 10

Final page: 7

ISSN: 1746-4811

Indexing

ISI Web of Knowledge - 53 Citations

Scopus - 54 Citations

Other information

Authenticus ID: P-009-80Z

DOI: 10.1186/1746-4811-10-7

Abstract (EN): Background: Phenotypic characterization of Arabidopsis thaliana gain-and loss-of-function mutants is a delicate and meticulous task that often involves the analysis of multiple parameters. Arabidopsis heat tolerance has been evaluated based on direct assessments that include seed germination, seedling survival, hypocotyl and root elongation, or indirect measurements such as chlorophyll content or ion leakage. Results: In an attempt to simplify the detection of heat stress-associated phenotypes, a collection of protocols for analysis of seed germination and seedling survival to heat treatment is proposed. Temperatures and lengths of heat treatments were combined into several heat tolerance assays, to be used as a primary approach for the search and characterization of basal and acquired heat tolerance-associated phenotypes at early developmental stages. The usefulness of this methodology was illustrated through the characterization of heat-related phenotypes in different Arabidopsis ecotypes as well as in gain-and loss-of-function mutants. Conclusions: The use of standardized experimental protocols designed to detect temperature-related phenotypes is proposed. The suggested plate-based assays provide an appropriate framework of experimental conditions for detection of variability amongst natural accessions or mutants lines. Functional studies could be facilitated by using this inexpensive and undemanding approach.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11