NDLI: Quantitation of ascorbic acid in Arabidopsis thaliana reveals distinct differences between organs and growth phases

Content Provider	Springer Nature Link
Author	Kka, ura Rookes, James Cahill, David
Copyright Year	2016
Abstract	Optimal plant growth is the result of the interaction of a complex network of plant hormones and environmental signals. Ascorbic acid (AsA) is a crucial antioxidant in plants and is involved in the regulation of cell division, cell expansion, photosynthesis and hormone biosynthesis. Quantitative analysis of AsA in Arabidopsis thaliana organs was conducted using HPLC with d-isoascorbic acid (Iso-AsA) as an internal standard. Analysis revealed fluctuations in the levels of AsA in different organs and growth phases when plants were grown under standard conditions. AsA concentrations increased in leaves in direct proportion to leaf size and age. Young siliques (seed set stage) and flowering buds (open and unopened) showed the highest levels of AsA. A relationship was found between the level of AsA and indole acetic acid (IAA) in leaves, stems, flowers, and siliques and the highest level of IAA and AsA were found in the flowers. In contrast, the lowest level of the plant hormone, salicylic acid, was found in the flowers, and the highest quantity measured in the leaves. Consequently, AsA has been found to be a multifunctional molecule that is involved as a key regulator of plant growth and development.
Starting Page	283
Ending Page	292
Page Count	10
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	81
Issue Number	2
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2016-08-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arabidopsis thaliana Ascorbic acid d-Isoascorbic acid Indole acetic acid Salicylic acid Plant Sciences Plant Anatomy/Development Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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