+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Transport of Salicylic Acid in Tobacco Necrosis Virus-Infected Cucumber Plants



Transport of Salicylic Acid in Tobacco Necrosis Virus-Infected Cucumber Plants



Plant Physiology 112(2): 787-792



The transport of salicylic acid (SA) was studied in cucumber (Cucumis sativus L.) using 14C-labeled benzoic acid that was injected in the cotyledons at the time of inoculation. Primary inoculation with tobacco necrosis virus (TNV) on the cotyledons led to an induction of systemic resistance of the first primary leaf above the cotyledon against Colletotrichum lagenarium as early as 3 d after inoculation. [14C]SA was detected in the phloem or in the first leaf 2 d after TNV inoculation, whereas [14C]benzoic acid was not detected in the phloem during the first 3 d after TNV inoculation of the cotyledons, indicating phloem transport of [14C]SA from cotyledon. In leaf 1, the specific activity of [14C]SA decreased between 1.7 and 8.6 times compared with the cotyledons, indicating that, in addition to transport, leaf 1 also produced more SA. The amount of SA transported after TNV infection of the cotyledon was 9 to 160 times higher than in uninfected control plants. Thus, SA can be transported to leaf 1 before the development of systemic acquired resistance, and SA accumulation in leaf 1 results both from transport from the cotyledon and from synthesis in leaf 1.

(PDF emailed within 0-6 h: $19.90)

Accession: 003001425

Download citation: RISBibTeXText

PMID: 12226421

DOI: 10.2307/4277385


Related references

Salicylic acid content in cucumber plants infected with Pseudomonas lachrymans and tobacco necrosis virus. Acta Horticulturae ( 381): 375-378, 1994

Comparative studies on ribonucleic acid dependent RNA polymerases in cucumber mosaic virus infected cucumber and tobacco and uninfected tobacco plants. Biochemistry 21(13): 3161-3167, 1982

Effects of DICER-like proteins 2, 3 and 4 on cucumber mosaic virus and tobacco mosaic virus infections in salicylic acid-treated plants. Journal of General Virology 90(Pt 12): 3010-3014, 2009

Comparative studies on Rna-dependent Rna polymerases in cucumber mosaic virus infected cucumber and tobacco, and uninfected tobacco plants. Biochemistry 21(13): 3161-3167, 1982

Salicylic acid enhances the synthesis of tobacco necrosis virus (TNV) and inhibits formation of antiviral factors (AVFs) in Chenopodium amaranticolor plants. Phytopathologia Mediterranea 36(1): 50-52, 1997

Virus induced proteins in tobacco plants infected with tobacco necrosis virus and satellite tobacco necrosis virus. Abstracts of the Annual Meeting of the American Society for Microbiology 72: 195, 1972

Effect of thiouracil on C14O2 fixation in healthy tobacco plants and in tobacco plants infected with cucumber mosaic virus. From abstr. in Phytopathology, 47: 531-2, 1957

The regeneration of virus free plants from cucumber mosaic virus infected and potato virus y infected tobacco explants cultured in the presence of virazole. Zeitschrift fuer Naturforschung Teil C Biochemie Biophysik Biologie Virologie 35(3-4): 350-351, 1980

Salicylic acid and chitinase in infected cucumber plants. Acta Horticulturae ( 381): 371-374, 1994

Biosynthesis of salicylic acid in infected cucumber plants. Experientia (Basel) 50(ABSTR ): A44, 1994

Effect of thiouracil on tobacco plants infected with cucumber mosaic virus and on noninfected tobacco plants. Phytopathology, 47: 27, 1957

Transport of salicylic acid and its precursors in cucumber plants. Experientia (Basel) 50(ABSTR ): A44, 1994

Induction of glutathione S-transferase activity in tobacco by tobacco necrosis virus infection and by salicylic acid. Pesticide Science 45(3): 290-291, 1995

Local and Systemic Biosynthesis of Salicylic Acid in Infected Cucumber Plants. Plant Physiology 109(3): 1107-1114, 1995

A 38-amino-acid sequence encompassing the arm domain of the cucumber necrosis virus coat protein functions as a chloroplast transit Peptide in infected plants. Journal of Virology 80(16): 7952-7964, 2006