We describe six Arabidopsis mutants, defining at least four loci, that spontaneously form necrotic lesions on leaves. Lesions resemble those resulting from disease, but occur in the absence of pathogen. In five mutants, lesion formation correlates with expression of histochemical and molecular markers of plant disease resistance responses and with expression of genes activated during development of broad disease resistance in plants (systemic acquired resistance [SAR]). We designate this novel mutant class Isd (for lesions simulating disease resistance response). Strikingly, four Isd mutants express substantial resistance to virulent fungal pathogen isolates. Isd mutants vary in cell type preferences for lesion onset and spread. Lesion formation can be conditional and can be induced specifically by biotic and chemical activators of SAR in Isd1 mutants.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0092-8674(94)90218-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Characterization and genome analysis of lytic Vibrio phage VPK8 with potential in lysing Vibrio parahaemolyticus isolates from clinical and seafood sources.
Virol J
January 2025
Division of Biological Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
Background: Vibrio parahaemolyticus is a marine bacterium causing seafood-associated gastrointestinal illness in humans and acute hepatopancreatic necrosis disease (AHPND) in shrimp. Bacteriophages have emerged as promising biocontrol agents against V. parahaemolyticus.
View Article and Find Full Text PDFRelationship between mucin gene polymorphisms and different types of gallbladder stones.
BMC Med Genomics
January 2025
Department of Hepatobiliary Pancreatic Surgery, Shenzhen People's Hospital, No.1017 Dongmen North Road, Shenzhen, 518020, Guangdong Province, China.
Background: Gallstones, a common surgical condition globally, affect around 20% of patients. The development of gallstones is linked to abnormal cholesterol and bilirubin metabolism, reduced gallbladder function, insulin resistance, biliary infections, and genetic factors. In addition to these factors, research has shown that mucins play a role in gallstone formation.
View Article and Find Full Text PDFA randomized double-blind clinical trial investigating the effects of ellagic acid on glycemic status, liver enzymes, and oxidative stress in patients with non-alcoholic fatty liver disease.
BMC Complement Med Ther
January 2025
Department of Nutrition, Qazvin University of Medical Sciences, Qazvin, Iran.
Background: It seems that oxidative stress is involved in the occurrence and progression of non-alcoholic fatty liver disease (NAFLD). Considering the antioxidant features of Ellagic acid (EA), this study was designed to assess the effect of EA on some biochemical factors in patients with NAFLD.
Methods: In this clinical trial, 44 patients were selected based on including criteria and randomly received 180 mg of EA per day (n = 22) or placebo (n = 22) for 8 weeks.
Single cell RNA sequencing improves the next generation of approaches to AML treatment: challenges and perspectives.
Mol Med
January 2025
Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran.
Acute myeloid leukemia (AML) is caused by altered maturation and differentiation of myeloid blasts, as well as transcriptional/epigenetic alterations, all leading to excessive proliferation of malignant blood cells in the bone marrow. Tumor heterogeneity due to the acquisition of new somatic alterations leads to a high rate of resistance to current therapies or reduces the efficacy of hematopoietic stem cell transplantation (HSCT), thus increasing the risk of relapse and mortality. Single-cell RNA sequencing (scRNA-seq) will enable the classification of AML and guide treatment approaches by profiling patients with different facets of the same disease, stratifying risk, and identifying new potential therapeutic targets at the time of diagnosis or after treatment.
View Article and Find Full Text PDFComprehensive profiling of serum microRNAs in normal and non-alcoholic fatty liver disease (NAFLD) patients.
Sci Rep
January 2025
Shaoxing Maternity and Child Health Care Hospital, No. 222 Fenglin East Road, Shaoxing, 312000, Zhejiang, China.
Pediatric non-alcoholic fatty liver disease (NAFLD) is emerging as a worldwide health concern with the potential to advance to cirrhosis and liver cancer. NAFLD can also directly contribute to heart problems through inflammation and insulin resistance, even in individuals without other risk factors. The pathological mechanisms of NAFLD are linked to functional differences of miRNAs in different biological environments.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!