Effect of insertion of apoplastic invertase gene on photosynthesis of potato plants grown at various light intensities

Effect of insertion of apoplastic invertase gene on photosynthesis of potato plants grown at... We studied the influence of yeast invertase gene (inv), with the apoplastic localization of the enzyme, on photosynthesis of potato plants (Solanum tuberosum L., cv. Desiree) grown at various irradiances. Plants were raised in vitro, planted in soil in gauze-insulated stands, and grown at irradiances of 100, 200, and 380 W/m2 of photosynthetically active radiation. Wild-type plants (WT) and the plants transformed with yeast invertase gene (B33-inv) were used. In the beginning of flowering stage, assimilation of 14CO2 and 14C incorporation into photosynthates were measured. Irrespective of irradiance, the carbon assimilation was higher in WT plants, than in transformed B33-inv plants. In the plants studied, we observed divergent light dependences of 14C inclusion into sucrose: the highest labeling was observed at low irradiance in WT plants and at high irradiance in B33-inv transformed plants. The content of 14C incorporated into amino acids changed in the opposite direction compared to 14C incorporation into sucrose. Irrespective of the plant type, similar light dependences were observed for 14C content in the products of glycolate metabolism and in glycerate. At the intermediate irradiance, the patterns of 14C distribution among photosynthetic products showed minimal differences between the plants of two types. The role of apoplast invertase in sugar export from the leaf and the possible control of plant productivity through this enzyme activity are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Effect of insertion of apoplastic invertase gene on photosynthesis of potato plants grown at various light intensities

Loading next page...
 
/lp/springer_journal/effect-of-insertion-of-apoplastic-invertase-gene-on-photosynthesis-of-zplnHtixYp
Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2011 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443711050049
Publisher site
See Article on Publisher Site

Abstract

We studied the influence of yeast invertase gene (inv), with the apoplastic localization of the enzyme, on photosynthesis of potato plants (Solanum tuberosum L., cv. Desiree) grown at various irradiances. Plants were raised in vitro, planted in soil in gauze-insulated stands, and grown at irradiances of 100, 200, and 380 W/m2 of photosynthetically active radiation. Wild-type plants (WT) and the plants transformed with yeast invertase gene (B33-inv) were used. In the beginning of flowering stage, assimilation of 14CO2 and 14C incorporation into photosynthates were measured. Irrespective of irradiance, the carbon assimilation was higher in WT plants, than in transformed B33-inv plants. In the plants studied, we observed divergent light dependences of 14C inclusion into sucrose: the highest labeling was observed at low irradiance in WT plants and at high irradiance in B33-inv transformed plants. The content of 14C incorporated into amino acids changed in the opposite direction compared to 14C incorporation into sucrose. Irrespective of the plant type, similar light dependences were observed for 14C content in the products of glycolate metabolism and in glycerate. At the intermediate irradiance, the patterns of 14C distribution among photosynthetic products showed minimal differences between the plants of two types. The role of apoplast invertase in sugar export from the leaf and the possible control of plant productivity through this enzyme activity are discussed.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Aug 21, 2011

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