Document Detail

The salicylic acid-induced protection of non-climacteric unripe pepper fruit against Colletotrichum gloeosporioides is similar to the resistance of ripe fruit.
MedLine Citation:
PMID:  19701640     Owner:  NLM     Status:  MEDLINE    
The anthracnose fungus Colletotrichum gloeosporioides deleteriously affects unripe pepper fruit, but not ripe fruit. Here, we show that the induction of local acquired resistance (LAR) by salicylic acid (SA), 2,6-dichloroisonicotinic acid, or benzo-(1,2,3)-thiadiazole-7-carbothioic acid S-methyl ester pretreatment protects unripe pepper fruit against the fungus, while jasmonic acid (JA) does not. The SA-mediated LAR in the unripe fruit inhibited the fungal appressoria, resulting in protection against fungal infection. Microarray analysis revealed that 177 of 7,900 cDNA clones showed more than fourfold transcriptional accumulation in SA-treated unripe fruit. The reverse transcription-polymerase chain reaction showed that most of the SA-responsive genes (SRGs) were regulated by SA, but not by JA or ethylene-releasing ethephon. Furthermore, most of the SRGs were preferentially expressed in the ripe fruit. These results suggest that the SA-mediated transcriptional regulation of SRGs has a critical role in the resistance of ripe pepper fruit to fungal infection.
Sanghyeob Lee; Jong-Chan Hong; Woong Bae Jeon; Young-Soo Chung; Soonkee Sung; Doil Choi; Young Hee Joung; Boung-Jun Oh
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-22
Journal Detail:
Title:  Plant cell reports     Volume:  28     ISSN:  1432-203X     ISO Abbreviation:  Plant Cell Rep.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-09-25     Completed Date:  2009-11-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9880970     Medline TA:  Plant Cell Rep     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1573-80     Citation Subset:  IM    
Bio-application Team, Dongbu Advanced Research Institute, 103-2 Munji-dong, Daeduck Science Town, Daejeon 305-708, Korea.
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MeSH Terms
Capsicum / genetics*,  microbiology
Colletotrichum / drug effects*
Cyclopentanes / pharmacology
DNA, Complementary / genetics
Fruit / genetics*,  microbiology
Gene Expression Regulation, Plant
Isonicotinic Acids / pharmacology
Oligonucleotide Array Sequence Analysis
Oxylipins / pharmacology
Plant Diseases / genetics*,  microbiology
RNA, Plant / genetics
Salicylic Acid / pharmacology*
Thiadiazoles / pharmacology
Reg. No./Substance:
0/Cyclopentanes; 0/DNA, Complementary; 0/Isonicotinic Acids; 0/Oxylipins; 0/RNA, Plant; 0/S-methyl benzo(1,2,3)thiadiazole-7-carbothioate; 0/Thiadiazoles; 5398-44-7/2,6-dichloroisonicotinic acid; 6894-38-8/jasmonic acid; 69-72-7/Salicylic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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