The Effect of the Common Bunt on the Growth of Wheat Seedlings and Calluses

The Effect of the Common Bunt on the Growth of Wheat Seedlings and Calluses The growth of wheat (Triticum aestivum L., cv. Zhnitsa) seedlings and calluses infected with spores of common bunt causal agent Tilletia caries (DC) Tul. was studied. Inoculation with the pathogenic fungus enhanced both in vivo and in vitro growth due to cell division activation and cell expansion. These growth characteristics were also retained in wheat calluses infected with T. caries and grown on the hormone-free Murashige and Skoog nutrient medium. This implies the production of hormone-like substances by the fungus itself or by the infected plant. At the phase of fungal penetration into the plants, infection resulted in IAA accumulation in seedlings. Later, the IAA content reduced to a control level and the phytohormone balance was shifted toward cytokinins. Similar changes in the IAA and cytokinin levels were observed during early fungus development on wheat callus tissues. Such a sequence of events is supposed to be required for successful fungal penetration and localization in plant tissues and for the establishment of compatible interactions between the pathogen and the host plant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

The Effect of the Common Bunt on the Growth of Wheat Seedlings and Calluses

Loading next page...
 
/lp/springer_journal/the-effect-of-the-common-bunt-on-the-growth-of-wheat-seedlings-and-T0bHGZSKXz
Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1020253305191
Publisher site
See Article on Publisher Site

Abstract

The growth of wheat (Triticum aestivum L., cv. Zhnitsa) seedlings and calluses infected with spores of common bunt causal agent Tilletia caries (DC) Tul. was studied. Inoculation with the pathogenic fungus enhanced both in vivo and in vitro growth due to cell division activation and cell expansion. These growth characteristics were also retained in wheat calluses infected with T. caries and grown on the hormone-free Murashige and Skoog nutrient medium. This implies the production of hormone-like substances by the fungus itself or by the infected plant. At the phase of fungal penetration into the plants, infection resulted in IAA accumulation in seedlings. Later, the IAA content reduced to a control level and the phytohormone balance was shifted toward cytokinins. Similar changes in the IAA and cytokinin levels were observed during early fungus development on wheat callus tissues. Such a sequence of events is supposed to be required for successful fungal penetration and localization in plant tissues and for the establishment of compatible interactions between the pathogen and the host plant.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Oct 13, 2004

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