ArticleBMC plant biology2015
Expression of catalase and retinoblastoma-related protein genes associates with cell death processes in Scots pine zygotic embryogenesis.
Article in BMC plant biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Catalase Gene Family in Durum Wheat: Genome-Wide Analysis and Expression Profiling in Response to Multiple Abiotic Stress Conditions.Plants (Basel, Switzerland) · 2023Article
- Article
- Multiple Methods Synergistically Promote the Synchronization of Somatic Embryogenesis Through Suspension Culture in the New Hybrid BetweenFrontiers in plant science · 2022Article
- Changing winter climate and snow conditions induce various transcriptional stress responses in Scots pine seedlings.Frontiers in plant science · 2022Article
- Article
- Catalase (CAT) Gene Family in Rapeseed (International journal of molecular sciences · 2021Article
- Article
- Transcriptomic Time-Series Analyses of Gene Expression Profile During Zygotic Embryo Development inFrontiers in genetics · 2021Article
- Thermospermine Synthase (Frontiers in plant science · 2019Article
- Scots pine aminopropyltransferases shed new light on evolution of the polyamine biosynthesis pathway in seed plants.Annals of botany · 2018Article
- Moderate stress responses and specific changes in polyamine metabolism characterize Scots pine somatic embryogenesis.Tree physiology · 2016Article
- The catalase gene family in cucumber: genome-wide identification and organization.Genetics and molecular biologyArticle
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe cell cycle and cellular oxidative stress responses are tightly controlled for proper growth and development of Scots pine (Pinus sylvestris L.) seed. Programmed cell death (PCD) is an integral part of the embryogenesis during which megagametophyte cells in the embryo surrounding region (ESR) and cells in the nucellar layers face death. In the present study, we show both the tissue and developmental stage specific expression of the genes encoding the autophagy related ATG5, catalase (CAT), and retinoblastoma related protein (RBR) as well as the connection between the gene expressions and cell death programs.
resultsWe found strong CAT expression in the cells of the developing embryo throughout the embryogenesis as well as in the cells of the megagametophyte and the nucellar layers at the early embryogeny. The CAT expression was found to overlap with both the ATG5 expression and hydrogen peroxide localization. At the late embryogeny, CAT expression diminished in the dying cells of the nucellar layers as well as in megagametophyte cells, showing the first signs of incipient cell death. Accumulation of starch and minor RBR expression were characteristic of megagametophyte cells in the ESR, whereas strong RBR expression was found in the cells of the nucellar layers at the late embryogeny.
conclusionsOur results suggest that ATG5, CAT, and RBR are involved in the Scots pine embryogenesis and cell death processes. CAT seems to protect cells against hydrogen peroxide accumulation and oxidative stress related cell death especially during active metabolism. The opposite expression of RBR in the ESR and nucellar layers alongside morphological characteristics emphasizes the different type of the cell death processes in these tissues. Furthermore, the changes in ATG5 and RBR expressions specifically in the megagametophyte cells dying by necrotic cell death suggest the genetic regulation of developmental necrosis in Scots pine embryogenesis.
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