ArticleAnnals of botany2006
Programmed cell death in floral organs: how and why do flowers die?
Article in Annals of botany, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.
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Who cites it
66 citing papers in PubMed, 228 citations in OpenAlex.
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- Petal senescence in cut roses.Horticulture research · 2026Article
- The Senescence of Cut Daffodil Flowers Correlates with Programmed Cell Death Symptoms.International journal of molecular sciences · 2025Article
- A chemical approach to extend flower longevity of Japanese morning glory via inhibition of master senescence regulator EPHEMERAL1.Nature plants · 2024Article
- Signalling cascades choreographing petal cell death: implications for postharvest quality.Plant molecular biology · 2024Review
- Jasmonates and salicylic acid as enigmatic orchestrators of capitula senescence inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2023Article
- Variation in Shoot, Peduncle and Fruit Growth ofPlants (Basel, Switzerland) · 2023Article
- Cell Biological Analyses of Anther Morphogenesis and Pollen Viability in Arabidopsis and Rice.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Isolation and Functional Analysis ofInternational journal of molecular sciences · 2022Article
- CRISPR/Cas9-Mediated Editing ofFrontiers in plant science · 2022Article
- Melatonin Protects Tobacco Suspension Cells against Pb-Induced Mitochondrial Dysfunction.International journal of molecular sciences · 2021Article
- Genome and transcriptome-based characterization of high energy carbon-ion beam irradiation induced delayed flower senescence mutant in Lotus japonicus.BMC plant biology · 2021Article
- Regulation of Flowering Timing by ABA-NnSnRK1 Signaling Pathway in Lotus.International journal of molecular sciences · 2021Article
- Photoperiodic Signaling and Senescence, an Ancient Solution to a Modern Problem?Frontiers in plant science · 2021Review
- Vacuolar Processing Enzymes Modulating Susceptibility Response toFrontiers in plant science · 2021Article
- Transcriptome Analysis Reveals the Senescence Process Controlling the Flower Opening and Closure Rhythm in the Waterlilies (Frontiers in plant science · 2021Article
- Processes controlling programmed cell death of root velamen radicum in an epiphytic orchid.Annals of botany · 2020Article
- Article
- Transcriptional regulation of Lonicera japonica Thunb. during flower development as revealed by comprehensive analysis of transcription factors.BMC plant biology · 2019Article
- Plant proteases during developmental programmed cell death.Journal of experimental botany · 2019Review
6 more citing papers are in PubMed but not listed here.
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFlowers have a species-specific, limited life span with an irreversible programme of senescence, which is largely independent of environmental factors, unlike leaf senescence, which is much more closely linked with external stimuli. TIMING: Life span of the whole flower is regulated for ecological and energetic reasons, but the death of individual tissues and cells within the flower is co-ordinated at many levels to ensure correct timing. Some floral cells die selectively during organ development, whereas others are retained until the whole organ dies. TRIGGERS: Pollination is an important floral cell death trigger in many species, and its effects are mediated by the plant growth regulator (PGR) ethylene. In some species ethylene is a major regulator of floral senescence, but in others it plays a very minor role and the co-ordinating signals involved remain elusive. Other PGRs such as cytokinin and brassinosteroids are also important but their role is understood only in some specific systems. MECHANISMS: In two floral cell types (the tapetum and the pollen-tube) there is strong evidence for apoptotic-type cell death, similar to that in animal cells. However, in petals there is stronger evidence for an autophagous type of cell death involving endoplasmic reticulum-derived vesicles and the vacuole. Proteases are important, and homologues to animal caspases, key regulators of animal cell death, exist in plants. However, their role is not yet clear. COMPARISON WITH OTHER ORGANS: There are similarities to cell death in other plant organs, and many of the same genes are up-regulated in both leaf and petal senescence; however, there are also important differences for example in the role of PGRs.
conclusionsUnderstanding gene regulation may help to understand cell death in floral organs better, but alone it cannot provide all the answers.
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