ArticlePlant physiology2012
The tobacco BLADE-ON-PETIOLE2 gene mediates differentiation of the corolla abscission zone by controlling longitudinal cell expansion.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 60 citations in OpenAlex.
- GhNAC47 activates GhSKS6-mediated cell wall remodeling to promote cotton chemical defoliation.The New phytologist · 2026Article
- BLADE-ON-PETIOLE Genes Enable Genetic Bottleneck Mitigation Through Cross-Species Repurposing of Floral Persistence Traits.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Abscission in plants: from mechanism to applications.Advanced biotechnology · 2024Review
- A BLADE-ON-PETIOLE orthologue regulates corolla differentiation in the proximal region in Torenia fournieri.Nature communications · 2023Article
- Grain shattering by cell death and fracture in Eragrostis tef.Plant physiology · 2023Article
- Regulation of secondary growth by poplarFrontiers in plant science · 2023Article
- MaABI5 and MaABF1 transcription factors regulate the expression ofFrontiers in plant science · 2023Article
- Brachypodium distachyon UNICULME4 and LAXATUM-A are redundantly required for development.Plant physiology · 2022Article
- BIN2 negatively regulates plant defence against Verticillium dahliae in Arabidopsis and cotton.Plant biotechnology journal · 2021Article
- Genomic editing of intronic enhancers unveils their role in fine-tuning tissue-specific gene expression in Arabidopsis thaliana.The Plant cell · 2021Article
- IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like peptides and HAE (HAESA)-like receptors regulate corolla abscission in Nicotiana benthamiana flowers.BMC plant biology · 2021Article
- Functional characterization of PETIOLULE-LIKE PULVINUS (PLP) gene in abscission zone development in Medicago truncatula and its application to genetic improvement of alfalfa.Plant biotechnology journal · 2021Article
- A high maternal genome excess causes severe seed abortion leading to ovary abscission inPlant direct · 2020Article
- Differential expression of IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like genes in Nicotiana benthamiana during corolla abscission, stem growth and water stress.BMC plant biology · 2020Article
- Transcriptional Landscapes of Divergent Sporophyte Development in Two Mosses,Frontiers in plant science · 2020Article
- Spatio-temporal localization of LlBOP following early events of floral abscission in yellow lupine.Protoplasma · 2019Article
- BLADE-ON-PETIOLE genes are not involved in the transition from protonema to gametophore in the moss Physcomitrella patens.Journal of plant research · 2019Article
- Clade I TGACG-Motif Binding Basic Leucine Zipper Transcription Factors Mediate BLADE-ON-PETIOLE-Dependent Regulation of Development.Plant physiology · 2019Article
- Cotton plant defence against a fungal pathogen is enhanced by expanding BLADE-ON-PETIOLE1 expression beyond lateral-organ boundaries.Communications biology · 2019Article
- The NONEXPRESSOR OF PATHOGENESIS-RELATED GENES 1 (NPR1) and Related Family: Mechanistic Insights in Plant Disease Resistance.Frontiers in plant science · 2019Review
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The BLADE-ON-PETIOLE (BOP) genes of Arabidopsis (Arabidopsis thaliana) have been shown to play an essential role in floral abscission by specializing the abscission zone (AZ) anatomy. However, the molecular and cellular mechanisms that underlie differentiation of the AZ are largely unknown. In this study, we identified a tobacco (Nicotiana tabacum) homolog of BOP (designated NtBOP2) and characterized its cellular function. In tobacco plants, the NtBOP2 gene is predominantly expressed at the base of the corolla in an ethylene-independent manner. Both antisense suppression of NtBOP genes and overexpression of NtBOP2 in tobacco plants caused a failure in corolla shedding. Histological analysis revealed that the differentiation of the corolla AZ was blocked in the transgenic flowers. This blockage was due to uncontrolled cell elongation at the region corresponding to wild-type AZ. The role of NtBOP2 in regulating cell elongation was further demonstrated in Bright Yellow 2 single cells: perturbation of NtBOP2 function by a dominant negative strategy led to the formation of abnormally elongated cells. Subcellular localization analysis showed that NtBOP2-green fluorescent protein fusion proteins were targeted to both the nucleus and cytoplasm. Yeast two-hybrid, firefly luciferase complementation imaging, and in vitro pull-down assays demonstrated that NtBOP2 proteins interacted with TGA transcription factors. Taken together, these results indicated that NtBOP2 mediated the differentiation of AZ architecture by controlling longitudinal cell growth. Furthermore, NtBOP2 may achieve this outcome through interaction with the TGA transcription factors and via an ethylene-independent signaling pathway.
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