NDLI: Study of the effects of foliar application of ABA during acclimatization

Content Provider	Springer Nature Link
Author	Dias, M. C. Correia, C. Moutinho Pereira, J. Oliveira, H. Santos, C.
Copyright Year	2014
Abstract	This study aims to elucidate the effects of abscisic acid (ABA) foliar application on plant hardening during ex vitro acclimatization using a forest model species Ulmus minor L. Plant leaves were sprayed with ABA (0, 50 and 100 μM) immediately after ex vitro transfer and twice a week for the first 3 weeks of acclimatization. After this period, parameters related with photosynthesis, hormone levels and oxidative stress were measured to assess plant performance. The results demonstrated that ABA foliar application alleviates the negative shock of ex vitro acclimatization since it reduces the water loss through transpiration, relieving the risk of wilting. Moreover, ABA promoted net CO$_{2}$ assimilation rate (P $_{ N }$) and plant dry mater accumulation. ABA treatment increased the antioxidant battery during acclimatization, with more effective results at the concentration of 50 μM ABA. Also, flow cytometry data support that cytosolic compounds, which may increase in response to 50 μM ABA, could also protect DNA from oxidative damage. We propose here that ABA foliar application (immediately after ex vitro transfer), by preventing water loss, enhancing photosynthesis efficiency and the activity of antioxidant enzymes, improves the plants hardening and ability to deal with the ex vitro stresses.
Starting Page	213
Ending Page	224
Page Count	12
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	117
Issue Number	2
e-ISSN	15735044
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-01-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cell cycle Flow cytometry Oxidative stress Photosynthesis Transpiration Ulmus minor Plant Sciences Plant Physiology Plant Genetics & Genomics Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Horticulture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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