Salinity effects on pigments of Turnera diffusa (Willd.) in vitro

Salinity effects on pigments of Turnera diffusa (Willd.) in vitro Salinity is an unfavourable factor to plant growth, development, and quality because high salinity increases oxidative stress and damage in plants. Damiana (Turnera diffusa Willd.) plants grow in arid zones. They are socio-economically important as they have industrial potential. Currently, no reports on their tolerance to salinity are available. This study was performed to determine the effect of salinity in damiana plants in an in vitro model under controlled conditions by applying NaCl in three levels (0.1, 1.0, and 1.5%) in Murashige-Skoog medium. To prove decrease in salinity stress, exogenous salicylic acid (SA) treatments (1 and 10 ppm) were tested, and biomass and water content were determined. Photosynthetic pigments and their degradation were determined with high performance liquid chromatography to assess the degree of salinity damage. To define the adaptation mechanism to salinity, specific peroxidase (POX) activity was quantified by spectrophotometric assay. Results showed that the determined parameters (chlorophyll a, chlorophyll b, ß-carotenes, pheophytin, violaxanthin, and zeaxanthin contents) reduced progressively with increase in salinity level. Chlorophyllide a and pheophorbide a contents were not modified by salinity stress but responded to SA presence. POX activity increased in all treatments with plants supplemented with NaCl. Treatments by SA did not modify the negative effects of NaCl on the photosynthetic pigments, but even so significantly enhanced POX activity compared with the untreated stressed plants (NaCl without SA). The results showed that damiana plants were moderately salt-tolerant and could be grown in soils with such characteristics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Salinity effects on pigments of Turnera diffusa (Willd.) in vitro

Loading next page...
 
/lp/springer_journal/salinity-effects-on-pigments-of-turnera-diffusa-willd-in-vitro-0S02tq2XcJ
Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443715050039
Publisher site
See Article on Publisher Site

Abstract

Salinity is an unfavourable factor to plant growth, development, and quality because high salinity increases oxidative stress and damage in plants. Damiana (Turnera diffusa Willd.) plants grow in arid zones. They are socio-economically important as they have industrial potential. Currently, no reports on their tolerance to salinity are available. This study was performed to determine the effect of salinity in damiana plants in an in vitro model under controlled conditions by applying NaCl in three levels (0.1, 1.0, and 1.5%) in Murashige-Skoog medium. To prove decrease in salinity stress, exogenous salicylic acid (SA) treatments (1 and 10 ppm) were tested, and biomass and water content were determined. Photosynthetic pigments and their degradation were determined with high performance liquid chromatography to assess the degree of salinity damage. To define the adaptation mechanism to salinity, specific peroxidase (POX) activity was quantified by spectrophotometric assay. Results showed that the determined parameters (chlorophyll a, chlorophyll b, ß-carotenes, pheophytin, violaxanthin, and zeaxanthin contents) reduced progressively with increase in salinity level. Chlorophyllide a and pheophorbide a contents were not modified by salinity stress but responded to SA presence. POX activity increased in all treatments with plants supplemented with NaCl. Treatments by SA did not modify the negative effects of NaCl on the photosynthetic pigments, but even so significantly enhanced POX activity compared with the untreated stressed plants (NaCl without SA). The results showed that damiana plants were moderately salt-tolerant and could be grown in soils with such characteristics.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Aug 14, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off