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The response of Petunia × atkinsiana 'Pegasus Special Burgundy Bicolor' to mechanical stress encompassing morphological changes as well as physiological and molecular factors.
Sci Rep
January 2025
Department of Environmental Protection and Dendrology, Institute of Horticultural Sciences, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland.
In 1973, Jaffe identified and characterized the phenomenon of thigmomorphogenesis, also referred to as mechanical stress (MS) or mechanical stimulation in plants. Previous studies on petunia plants demonstrated that MS significantly affects growth dynamics. As a response to MS, petunias exhibit increased levels of indole-3-acetic acid (IAA) oxidase and peroxidase, although the active transport of endogenous IAA remains unaffected.
View Article and Find Full Text PDFAn intron-split microRNA mediates cleavage of the mRNA encoded by low phosphate root in Solanaceae.
Planta
January 2025
School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, UK.
A microRNA with a non-canonical precursor structure harbours an intron in between its miRNA-5p and miRNA-3p relevant for its biogenesis, is conserved across Solanaceae, and targets the mRNA of low phosphate root. Hundreds of miRNAs have been identified in plants and great advances have been accomplished in the understanding of plant miRNA biogenesis, mechanisms and functions. Still, many miRNAs, particularly those with less conventional features, remain to be discovered.
View Article and Find Full Text PDFIntegration of DNA Methylation, MicroRNAome, Degradome, and Transcriptome Provides Insights into Petunia Anther Development.
Plant Cell Physiol
December 2024
State Key Laboratory of Tree Genetics and Breeding, Nanjing Forestry University, Nanjing 210037, China.
Petunia hybrida is an annual herb flower that is prevalently cultivated both in public landscaping and home gardening. Anthers are vital reproductive organs for plants, but the molecular mechanism controlling petunia anther development remains elusive. In this work, we combined DNA methylation, microRNAome, degradome, and transcriptome data to generate a comprehensive resource focused on exploring the complex molecular mechanism of petunia anther development.
View Article and Find Full Text PDFExploring the Allelic Diversity of the Self-Incompatibility Gene Across Natural Populations in Petunia (Solanaceae).
Genome Biol Evol
December 2024
Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku 113-0033, Tokyo, Japan.
Self-incompatibility (SI) is a genetic mechanism to prevent self-fertilization and thereby promote outcrossing in hermaphroditic plant species through discrimination of self and nonself-pollen by pistils. In many SI systems, recognition between pollen and pistils is controlled by a single multiallelic locus (called the S-locus), in which multiple alleles (called S-alleles) are segregating. Because of the extreme level of polymorphism of the S-locus, identification of S-alleles has been a major issue in many SI studies for decades.
View Article and Find Full Text PDFFunctional Divergence of the Closely Related Genes PhARF5 and PhARF19a in Flower Formation and Hormone Signaling.
Int J Mol Sci
November 2024
School of Landscape Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China.
The ARF gene family plays a vital role in regulating multiple aspects of plant growth and development. However, detailed research on the role of the ARF family in regulating flower development in petunia and other plants remains limited. This study investigates the distinct roles of and in flower development.
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