Seed size is a major determinant of seed yield but few is known about the genetics controlling of seed size in plants. Phytohormones cytokinin and brassinosteroid were known to be involved in the regulation of herbaceous plant seed development. Here we identified a homolog of Auxin Response Factor 19 (JcARF19) from a woody plant Jatropha curcas and genetically demonstrated its functions in controlling seed size and seed yield. Through Virus Induced Gene Silencing (VIGS), we found that JcARF19 was a positive upstream modulator in auxin signaling and may control plant organ size in J. curcas. Importantly, transgenic overexpression of JcARF19 significantly increased seed size and seed yield in plants Arabidopsis thaliana and J. curcas, indicating the importance of auxin pathway in seed yield controlling in dicot plants. Transcripts analysis indicated that ectopic expression of JcARF19 in J. curcas upregulated auxin responsive genes encoding essential regulators in cell differentiation and cytoskeletal dynamics of seed development. Our data suggested the potential of improving seed traits by precisely engineering auxin signaling in woody perennial plants.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5244365 | PMC |
| http://dx.doi.org/10.1038/srep40844 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identification of the locus controlling leaf rolling and its application in maize breeding.
Mol Breed
January 2025
Maize Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007 Guangxi China.
Unlabelled: Increasing planting density is one of the most important strategies for generating higher maize yields. Moderate leaf rolling decreases mutual shading of leaves and increases the photosynthesis of the population and hence increases the tolerance for high-density planting. Few genes that control leaf rolling in maize have been identified, however, and their applicability for breeding programs remains unclear.
View Article and Find Full Text PDFDeciphering the Seed Size-Dependent Cellular Internalization Mechanism for α-Synuclein Fibrils.
Biochemistry
January 2025
Sunita Sanghi Centre of Aging and Neurodegenerative Diseases (SCAN), Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
Aggregation of α-synuclein (α-Syn) and Lewy body (LB) formation are the key pathological events implicated in Parkinson's disease (PD) that spread in a prion-like manner. However, biophysical and structural characteristics of toxic α-Syn species and molecular events that drive early events in the propagation of α-Syn amyloids in a prion-like manner remain elusive. We used a neuronal cell model to demonstrate the size-dependent native biological activities of α-Syn fibril seeds.
View Article and Find Full Text PDFHeptamethine cyanine-based polymeric nanoparticles for photothermal therapy in HCT116 human colon cancer model.
Sci Rep
January 2025
School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
In this work, we synthesize a quinoline-based heptamethine cyanine, QuCy7, with sulfonate groups to enhance water solubility. This dye demonstrates exceptional near-infrared absorption beyond 750 nm, accompanied by photothermal properties but low photostability. Encapsulating QyCy7 with polyethylene glycol to form nanopolymer, QuCy7@mPEG NPs, addresses the issue of its photoinstability.
View Article and Find Full Text PDFCarboxymethyl cellulose/shellac composite loaded with pomegranate extract and jojoba oil as anti-mycotic and anti-mycotoxigenic food packaging materials.
Sci Rep
January 2025
Food Toxicology and Contaminants Department, National Research Centre, Dokki, Cairo, 12622, Egypt.
Food commodities, including mycotoxins naturally produced from toxigenic fungi (pre- or post-harvest), are particularly vulnerable to contamination. The study intended to use unique bioactive composites loaded with antimicrobial constituents for food packaging. Three composite types are based on carboxymethyl cellulose/shellac (CMC/SH) and loaded with pomegranate extract (POE) with or without jojoba oil (JOE) at various concentrations.
View Article and Find Full Text PDFGenome-wide analysis of Class III peroxidase (PRX) family core genes and functional mechanism of GhPRXR1-A for seed development in Gossypium hirsutum.
Int J Biol Macromol
January 2025
State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China; Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China. Electronic address:
Class III peroxidases (PRXs) play critical roles in plant growth and development by oxidizing various substrates with HO. Although many PRXs have been identified and their roles in biotic and abiotic stress responses have extensively investigated in plants. However, functional mechanisms of PRXs in seed development remain poorly understood.
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!