Background: The stalk rind is one of the important factors affecting maize stalk strength that is closely related to stalk lodging. However, the mechanism of rind development in maize is still largely unknown.
Results: In this study, we analyzed the mechanical, anatomical, and biochemical properties of the third basal internode in one maize non-stiff-stalk (NSS) line and two stiff-stalk (SS) lines. Compared with the NSS line, the two SS lines had a significantly higher rind penetrometer resistance, thicker rind, and higher dry matter, hemicellulose, cellulose, and lignin weights per unit length. RNA-seq analysis was used to compare transcriptomes of the third basal internode of the two SS lines and the NSS line at the ninth leaf and tasseling stages. Gene Ontology (GO) enrichment analysis revealed that genes involved in hydrolase activity (hydrolyzing O-glycosyl compounds) and cytoskeleton organization were significantly up-regulated in the two SS lines at the ninth leaf stage and that microtubule process-related genes were significantly up-regulated in the two SS lines at the tasseling stage. Moreover, the two SS lines had enhanced expression of cell wall metabolism-related genes at the tasseling stage.
Conclusions: The synthesis of cell wall polysaccharides and the cytoskeleton might play important roles in internode development. Our results can be applied for screening lodging-resistant inbred lines and breeding lodging-resistant cultivars in maize.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8785456 | PMC |
| http://dx.doi.org/10.1186/s12870-022-03435-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identification and functional characterization of the C2H2 ZFP transcription factor CmSUP7 in regulating melon plant growth and fruit development.
Plant Physiol Biochem
January 2025
Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot, 010070, China. Electronic address:
The SUPERMAN (SUP) proteins, which belong to the single C2H2 zinc finger proteins (ZFP) subclass, participate in various aspects of gene regulation in plant morphogenesis and stress response, but their role in melon (Cucumis melo) is still largely unknown. We identified a total of 28 CmSUP genes in the melon genome, all containing QALGGH conserved domain. Collinearity analysis showed that melon had several homologous gene pairs with Arabidopsis and tomato, indicating the gene duplication events during the evolution.
View Article and Find Full Text PDFEffects of nitrogen fertilizer application rate on lodging resistance for rice (Oryza sativa L.) stem.
Sci Rep
January 2025
Agronomy Collage Jilin Agricultural University, Changchun, 130118, China.
Rice yield could be increased by apply higher level of nitrogen fertilizer, but excessive use of nitrogen fertilizer will cause plant lodging. This study aimed to investigate the effect of nitrogen application rate on lodging resistance of rice stems. Four japonica rice varieties with different lodging resistance were used, and six nitrogen fertilizer levels were set up to analyze the morphological structure, mechanical properties, and chemical components of rice stems under such treatments.
View Article and Find Full Text PDFDetermination of optimal gamma radiation dose for mutation breeding in 'Sabz' fig (Ficus carica L.) cuttings based on radiosensitivity and phenotypic changes.
PLoS One
January 2025
Fig Research Station, Fars Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Estahban, Iran.
The dried fig cv. Sabz of Iran, distinguishes out among the several fig cultivars for its unique characteristics and excellent properties. The aims to this study were 1) Carefully monitoring the resulting phenotypic changes in growth patterns, leaf morphology, shoot traits, root characteristics, and other relevant traits after irradiated with different gamma rays; 2) Investigating the LD25, 50, 75 and GR25, 50, 75 values at different gamma radiation doses for chose optimum dose.
View Article and Find Full Text PDFLate-stage changes in the composition of cell walls of maize plants expressing an apoplast targeted, senescence enhanced fungal ferulic acid esterase, and the subsequent effects on tissue saccharification.
PLoS One
January 2025
Department of Biology, The Pennsylvania State University, University Park, PA, United States of America.
Article Synopsis
- The study explored the effects of a specific enzyme (FAEA) expressed in maize that targets the apoplast, focusing on its activity during the late stages of plant senescence and after storing the plant material.
- FAEA levels increased until the reproductive (R) stage but dropped during full leaf senescence (R+), while the enzyme remained stable even after six months of cold storage.
- The research found that FAEA expression led to decreased cell wall components like ferulates and improved the breakdown (saccharification) of plant material by enzymes, making it easier to extract sugars at later development stages.
Comparison of the growth, fruit quality and physiological characteristics of cucumber fertigated by three different nutrient solutions in soil culture and soilless culture systems.
Sci Rep
January 2025
Department of Horticultural Sciences, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Kerman, Iran.
Global warming and declining rainfall in recent years have led to increased water and soil salinity in Iran agricultural lands. To address these challenges, greenhouse cultivation, particularly soilless culture, emerges as a critical solution for mitigating the effect of soil salinity and water scarcity on vegetable plant production in Iran. The aim of this experiment was to compare the growth and physiological responses of cucumber plants cultivated in both soil and soilless systems, using three distinct nutrient solutions.
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!