ArticleThe Plant cell1998
A potential signaling role for profilin in pollen of Papaver rhoeas.
Article in The Plant cell, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 82 citations in OpenAlex.
- From the archives: Ear apical degeneration 1 is essential for maize ear development, SHOOT MERISTEMLESS regulates floral fate, and the role of profilin in pollen tube growth.The Plant cell · 2023Article
- Article
- Histological and molecular analysis of pollen-pistil interaction in clementine.Plant cell reports · 2009Article
- Identification and characteristics of microRNAs from Bombyx mori.BMC genomics · 2008Article
- The function of actin-binding proteins in pollen tube growth.Protoplasma · 2007Review
- Reversible protein tyrosine phosphorylation affects pollen germination and pollen tube growth via the actin cytoskeleton.Protoplasma · 2007Article
- Article
- Modulation of endocytosis in pollen tube growth by phosphoinositides and phospholipids.Protoplasma · 2005Review
- The cotton ACTIN1 gene is functionally expressed in fibers and participates in fiber elongation.The Plant cell · 2005Article
- Signal-mediated depolymerization of actin in pollen during the self-incompatibility response.The Plant cell · 2002Article
- Small changes in the regulation of one Arabidopsis profilin isovariant, PRF1, alter seedling development.The Plant cell · 2001Article
- Maize profilin isoforms are functionally distinct.The Plant cell · 2000Article
- Characterization of Ricinus communis phloem profilin, RcPRO1.Plant molecular biology · 2000Article
- The Arabidopsis actin-related protein 2 (AtARP2) promoter directs expression in xylem precursor cells and pollen.Plant molecular biology · 1999Article
- Signaling and the modulation of pollen tube growthThe Plant cell · 1999Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Regulation of pollen tube growth is known to involve alterations in intracellular calcium levels and phosphoinositide signaling, although the mechanisms involved are unclear. However, it appears likely that pollination events involve a complex interplay between signaling pathways and components of the actin cytoskeleton in pollen. In many eukaryotic cells, actin binding proteins function as stimulus-response modulators, translating signals into alterations in the cytoplasmic architecture. In this study, we examined whether profilin, which is a member of this class of signaling intermediate, might play a similar role in pollen. We have analyzed the functional properties of native profilin from pollen of Papaver rhoeas and have investigated the effects of profilin on the phosphorylation of pollen proteins in vitro by adding a slight excess of profilin to cytosolic pollen extracts. We present clear evidence that profilin interacts with soluble pollen components, resulting in dramatic alterations in the phosphorylation of several proteins. We also show, albeit in vitro, the involvement of profilin in modulating the activity of a signaling component(s) affecting protein phosphorylation. Our data, which suggest that pollen profilin can regulate actin-based cytoskeletal protein assembly and protein kinase or phosphatase activity, indicate a possible role for the involvement of profilin in signaling pathways that may regulate pollen tube growth.
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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.