ArticleThe Plant cell1999
Volvoxrhodopsin, a light-regulated sensory photoreceptor of the spheroidal green alga Volvox carteri.
Article in The Plant cell, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 76 citations in OpenAlex.
- Position-dependent roles of somatic cells in phototaxis ofPNAS nexus · 2024Article
- Volvox and volvocine green algae.EvoDevo · 2020Review
- Whole transcriptome RNA-Seq analysis reveals extensive cell type-specific compartmentalization in Volvox carteri.BMC biology · 2017Article
- Non-model model organisms.BMC biology · 2017Article
- Transgene Expression in Microalgae-From Tools to Applications.Frontiers in plant science · 2016Review
- Transcriptional analysis of Volvox photoreceptors suggests the existence of different cell-type specific light-signaling pathways.Current genetics · 2015Article
- Cell-type specific photoreceptors and light signaling pathways in the multicellular green alga Volvox carteri and their potential role in cellular differentiation.Plant signaling & behavior · 2015Article
- Cell-type specific light-mediated transcript regulation in the multicellular alga Volvox carteri.BMC genomics · 2014Article
- Review
- Sea urchin tube feet are photosensory organs that express a rhabdomeric-like opsin and PAX6.Proceedings. Biological sciences · 2011Article
- RNA-mediated silencing in Algae: biological roles and tools for analysis of gene function.Eukaryotic cell · 2011Review
- How 5000 independent rowers coordinate their strokes in order to row into the sunlight: phototaxis in the multicellular green alga Volvox.BMC biology · 2010Article
- Channelrhodopsins of Volvox carteri are photochromic proteins that are specifically expressed in somatic cells under control of light, temperature, and the sex inducer.Plant physiology · 2009Article
- Type II opsins: evolutionary origin by internal domain duplication?Journal of molecular evolution · 2008Article
- RNA silencing in Chlamydomonas: mechanisms and tools.Current genetics · 2006Review
- Genes and homology in nervous system evolution: comparing gene functions, expression patterns, and cell type molecular fingerprints.Theory in biosciences = Theorie in den Biowissenschaften · 2005Article
- Analysis of the blind Drosophila mutant ninaB identifies the gene encoding the key enzyme for vitamin A formation invivo.Proceedings of the National Academy of Sciences of the United States of America · 2001Article
- Genomics of Volvocine Algae.Advances in botanical researchArticle
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Somatic cells of the multicellular alga Volvox carteri contain a visual rhodopsin that controls the organism's phototactic behavior via two independent photoreceptor currents. Here, we report the identification of an opsinlike gene, designated as volvoxopsin (vop). The encoded protein exhibits homologies to the opsin of the unicellular alga Chlamydomonas reinhardtii (chlamyopsin) and to the entire animal opsin family, thus providing new perspectives on opsin evolution. Volvoxopsin accumulates within the eyes of somatic cells. However, the vop transcript is detectable only in the reproductive eyeless gonidia and embryos. vop mRNA levels increase 400-fold during embryogenesis, when embryos develop in darkness, whereas the vop transcript does not accumulate when embryos develop in the light. An antisense transformant, T3, was generated. This transformant produces 10 times less volvoxopsin than does the wild type. In T3, the vop transcript is virtually absent, whereas the antisense transcript is predominant and light regulated. It follows that vop expression is under light-dependent transcriptional control but that volvoxopsin itself is not the regulatory photoreceptor. Transformant T3 is phototactic, but its phototactic sensitivity is reduced 10-fold relative to the parental wild-type strain HK10. Thus, we offer definitive genetic evidence that a rhodopsin serves as the photoreceptor for phototaxis in a green alga.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.