ArticleHorticulture research2021
PbEIL1 acts upstream of PbCysp1 to regulate ovule senescence in seedless pear.
Article in Horticulture research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 27 citations in OpenAlex.
- The ZjMYB44-ZjPOD51 module enhances jujube defense response against phytoplasma by upregulating lignin biosynthesis.Horticulture research · 2025Article
- The Mechanism of Ovule Abortion in Self-Pollinated 'Hanfu' Apple Fruits and Related Gene Screening.Plants (Basel, Switzerland) · 2024Article
- Recent Advances in Studying the Regulation of Fruit Ripening in Tomato Using Genetic Engineering Approaches.International journal of molecular sciences · 2024Review
- The haplotype-resolved autotetraploid genome assembly provides insights into the genomic evolution and fruit divergence in wax apple (Horticulture research · 2023Article
- Transcriptome sequencing and gene expression analysis revealed early ovule abortion of Paeonia ludlowii.BMC genomics · 2023Article
- Review
- PbXND1 Results in a Xylem-Deficient Dwarf Phenotype through Interaction with PbTCP4 in Pear (International journal of molecular sciences · 2022Article
- Hormonal interactions underlying parthenocarpic fruit formation in horticultural crops.Horticulture research · 2022Article
- Programmed Cell Death May Be Involved in the Seedless Phenotype Formation of Oil Palm.Frontiers in plant science · 2022Article
- Jasmonic Acid and Ethylene Participate in the Gibberellin-Induced Ovule Programmed Cell Death Process in Seedless Pear '1913' (International journal of molecular sciences · 2021Article
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
Abstract
Numerous environmental and endogenous signals control the highly orchestrated and intricate process of plant senescence. Ethylene, a well-known inducer of senescence, has long been considered a key endogenous regulator of leaf and flower senescence, but the molecular mechanism of ethylene-induced ovule senescence has not yet been elucidated. In this study, we found that blockage of fertilization caused ovule abortion in the pear cultivar '1913'. According to transcriptome and phytohormone content data, ethylene biosynthesis was activated by pollination. At the same time, ethylene overaccumulated in ovules, where cells were sensitive to ethylene signals in the absence of fertilization. We identified a transcription factor in the ethylene signal response, ethylene-insensitive 3-like (EIL1), as a likely participant in ovule senescence. Overexpression of PbEIL1 in tomato caused precocious onset of ovule senescence. We further found that EIL1 could directly bind to the promoter of the SENESCENCE-ASSOCIATED CYSTEINE PROTEINASE 1 (PbCysp1) gene and act upstream of senescence. Yeast one-hybrid and dual-luciferase assays revealed the interaction of the transcription factor and the promoter DNA sequence and demonstrated that PbEIL1 enhanced the action of PbCysp1. Collectively, our results provide new insights into how ethylene promotes the progression of unfertilized ovule senescence.
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Registered trials
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