The ameliorating effects of polyamine supplement on physiological and biochemical parameters of Stevia rebaudiana Bertoni under cold stress

Stevia rebaudiana Bertoni is a perennial medicinal herb indigenous to tropical regions of South America. The present study evaluated some physiological changes of the plant under cold in the absence and the presence of polyamine conditions. The results showed photosynthetic pigments and photochemica...

Full description

Saved in:
Bibliographic Details
Published in:Plant production science 2018-04, Vol.21 (2), p.123-131
Main Authors: Moradi Peynevandi, Kamran, Razavi, Seyed Mehdi, Zahri, Saber
Format: Article
Language:English
Subjects:
Amino acids
Antioxidants
Ascorbic acid
Catalase
Cold
cold stress
Cold tolerance
Cold treatment
Fatty acids
Glycine
Glycine betaine
Herbal medicine
Hydrogen peroxide
L-Ascorbate peroxidase
Malondialdehyde
Medicinal plants
Parameters
Peroxidase
Photochemicals
Photosynthesis
Photosynthetic pigments
Photosystem II
Physiological effects
Physiology
Pigments
polyamine
Polyamines
Proline
Proteins
Solutes
Stevia rebaudiana
Tropical environment
Tropical environments
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Stevia rebaudiana Bertoni is a perennial medicinal herb indigenous to tropical regions of South America. The present study evaluated some physiological changes of the plant under cold in the absence and the presence of polyamine conditions. The results showed photosynthetic pigments and photochemical efficiency of PSII reduced in cold treatment conditions than control, significantly. However, a considerable increase in the parameters was observed in all of polyamine treated goups. Leaf compatible solutes such as proline and glycine betaine that were not shown significantly increasing at cold treatment groups, elevated in the 2 days cold-polyamine-treated group. The similar results were seen for free amino acid and total protein contents of the treated plants. It was also revealed that specific activity of some antioxidant enzymes such as catalase and ascorbate peroxidase increased in cold-treated or cold + polyamine-treated groups than related controls. It caused a significant decrease in H2O2 and malondialdehyde contents of the treated plants. The results indicated an increasing in saturated long chain fatty acids after 4 days of cold at 4 °C. It was concluded that the polyamine supplement can induced a considerable tolerance in stevia plants at cold condition.
ISSN:1343-943X
1349-1008
DOI:10.1080/1343943X.2018.1437756