During their development, leaves progress through a highly controlled yet flexible developmental program. Transcription factors from the CIN-TCP family affect leaf shape by regulating the timing of leaf maturation. Characterization of mutants in the tomato (Solanum lycopersicum) CIN-TCP gene LANCEOLATE (LA) led us to hypothesize that a threshold LA-like activity promotes leaf differentiation. Here, we examined the relationship between LA activity, leaf maturation, and final leaf size and shape. Leaves of diverse shapes from various Solanaceae species or from different positions on the tomato plant differed in the timing of growth and maturation, and these were often associated with altered LA expression dynamics. Accordingly, genetic manipulations of LA activity in tomato altered leaf growth and maturation, leading to changes in leaf size and shape. LA expression sustained until late stages of tomato leaf development, and stage-specific overexpression of miR319, a negative regulator of CIN-TCP genes, confirmed that LA-like proteins affect leaf development through these late stages. Together, our results imply that dynamic spatial and temporal leaf maturation, coordinated by LA-like genes, enables the formation of variable leaf forms.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1242/dev.056770 | DOI Listing |
Infect Ecol Epidemiol
January 2025
School of Medicine, The Maldives National University, Malé, Maldives.
Background: Dengue fever (DF) is endemic in Pakistan, posing health risks. Recent flooding in 2022 and strong monsoon rains in 2024 have increased the possibility of an epidemic. It is an infectious disease having potentially severe outcomes including thrombocytopenia.
View Article and Find Full Text PDFFront Microbiol
January 2025
Yunnan Academy of Tobacco Science, Kunming, China.
The effects of rhizosphere microorganisms on plant growth and the associated mechanisms are a focus of current research, but the effects of exogenous combined inoculation with arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on seedling growth and the associated rhizosphere microecological mechanisms have been little reported. In this study, a greenhouse pot experiment was used to study the effects of single or double inoculation with AM fungi () and two PGPR ( sp., sp.
View Article and Find Full Text PDFPhytoKeys
January 2025
Botany Unit, Pharmacy Building, University Complutense of Madrid, E-28040 Madrid, Spain University Complutense of Madrid Madrid Spain.
A new species of () is described from the calcareous, high-mountain Spanish flora in the central part of the Iberian Peninsula. It is found in a Mediterranean climate at high-elevation, perennial, calcareous grasslands, as well as in marble screes of anthropogenic origin in the Sierra de Guadarrama, Central System (Spain), in a reserve area within the Sierra de Guadarrama National Park, at 1996 m asl. Taxonomic morphological measurements were performed on collected specimens from Sierra de Guadarrama as well as on geographically-adjacent (i.
View Article and Find Full Text PDFHortic Res
January 2025
Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, China.
Sugars act as signaling molecules to modulate various growth processes and enhance plant tolerance to various abiotic and biotic stresses. Moreover, sugars contribute to the postharvest flavor in fleshy fruit crops. To date, the regulation of sugar metabolism and its effect in plant growth, fruit ripening, postharvest quality, and stress resistance remains not fully understood.
View Article and Find Full Text PDFACS Omega
January 2025
Laboratory of Biological Control of Plant Disease and Laboratory of Plant Biotechnology, Institute of Biotechnology, University of Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Petrópolis, Caxias do Sul, Rio Grande do Sul 95070-560, Brazil.
This work aimed to evaluate the potential of spp. in the bioremediation of herbicides and biostimulation of plants in herbicide-contaminated soils. In the first phase, the experiment followed a completely randomized design in a 4 × 3 × 4 factorial scheme with five replications, four strains of spp.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!