Effect of Exogenous Auxin Treatment on Cell Wall Polymers of Strawberry Fruit

Autor: Ana Gonzalez-Feliu, Marcelo Muñoz-Vera, Ricardo I. Castro, Felipe Valenzuela-Riffo, Carolina Parra-Palma, Luis Morales-Quintana
Jazyk: angličtina
Rok vydání: 2021
Předmět:
0106 biological sciences
0301 basic medicine
Achene
Transcription
Genetic
thermogravimetry analyses
QH301-705.5
Cell
strawberry fruit
Cell wall disassembly
Polysaccharide
01 natural sciences
Fragaria
Article
Catalysis
Inorganic Chemistry
Cell wall
03 medical and health sciences
Biopolymers
Auxin
Cell Wall
Gene Expression Regulation
Plant
Triiodobenzoic Acids
medicine
RNA
Messenger
Biology (General)
Physical and Theoretical Chemistry
QD1-999
Molecular Biology
Softening
Spectroscopy
chemistry.chemical_classification
Indoleacetic Acids
auxin inhibitor
Depolymerization
Organic Chemistry
Temperature
food and beverages
General Medicine
Computer Science Applications
Chemistry
030104 developmental biology
medicine.anatomical_structure
chemistry
cell wall polymer
Fruit
Thermogravimetry
Biophysics
auxin treatment
010606 plant biology & botany
Zdroj: International Journal of Molecular Sciences
Volume 22
Issue 12
International Journal of Molecular Sciences, Vol 22, Iss 6294, p 6294 (2021)
ISSN: 1422-0067
DOI: 10.3390/ijms22126294
Popis: The role of auxin in the fruit-ripening process during the early developmental stages of commercial strawberry fruits (Fragaria x ananassa) has been previously described, with auxin production occurring in achenes and moving to the receptacle. Additionally, fruit softening is a consequence of the depolymerization and solubilization of cell wall components produced by the action of a group of proteins and enzymes. The aim of this study was to compare the effect of exogenous auxin treatment on the physiological properties of the cell wall-associated polysaccharide contents of strawberry fruits. We combined thermogravimetric (TG) analysis with analyses of the mRNA abundance, enzymatic activity, and physiological characteristics related to the cell wall. The samples did not show a change in fruit firmness at 48 h post-treatment
by contrast, we showed changes in the cell wall stability based on TG and differential thermogravimetric (DTG) analysis curves. Less degradation of the cell wall polymers was observed after auxin treatment at 48 h post-treatment. The results of our study indicate that auxin treatment delays the cell wall disassembly process in strawberries.
Databáze: OpenAIRE
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