The villin/gelsolin/fragmin superfamily is a conserved Ca^2＋-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characteri...The villin/gelsolin/fragmin superfamily is a conserved Ca^2＋-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characterized by the same core of three or six tandem gelsolin subdomains. The study in vertebrates and lower eukaryotic cells has revealed that the villin/gelsolin/fragmin superfamily of proteins has versatile functions including severing, capping, nucleating or bundling actin filaments. In plants, encouraging progress has been made in this field of research in recent years. This review will summarize the identified plant homologs of villin/gelsolin/fragmin superfamily, thus providing a basis for reflection on their biochemical activities and functions in plants.展开更多
Around the world,early childhood teachers are recognized as playing a crucial role in improving children's everyday lives and strengthening their learning abilities.Consequently,explicating the professional standa...Around the world,early childhood teachers are recognized as playing a crucial role in improving children's everyday lives and strengthening their learning abilities.Consequently,explicating the professional standards of educational practice is receiving growing attention from both stakeholders—including governments,educational authorities,and parents—and early childhood teachers themselves(Campbell-Barr&Bogatic,2017;Chen et al.,2016;Havnes,2018;Hordern,2016;Oberhuemer,2005).However,despite the long recognition of children's education as an ethical task based on the values,motivation,and responsibility of teachers(Afdal&Afdal,2019;Campbell,2008;Chen et al.,2016;Forster,2012;Webster&Whelen,2019a),current discussions of standards for professional practice appear to neglect ethical aspects(Malone,2020).Moreover,despite growing public interest in and expectations of the role of teachers in early childhood education and care(ECEC),the profession is still struggling to achieve professional status(Havnes,2018,p.659;Oberhuemer,2005).展开更多
基金Supported by the National Natural Science Foundation of China (30630005,30470176 and 30325005)the State Key Basic Research and Development Plan of China (2006CB100100).
文摘The villin/gelsolin/fragmin superfamily is a conserved Ca^2＋-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characterized by the same core of three or six tandem gelsolin subdomains. The study in vertebrates and lower eukaryotic cells has revealed that the villin/gelsolin/fragmin superfamily of proteins has versatile functions including severing, capping, nucleating or bundling actin filaments. In plants, encouraging progress has been made in this field of research in recent years. This review will summarize the identified plant homologs of villin/gelsolin/fragmin superfamily, thus providing a basis for reflection on their biochemical activities and functions in plants.
基金This work was supported by the International Joint Research Project of Faculty of Education,Beijing Normal University(ICER202002)The work with this article and work as guest editors have been supported by Western Norway University of Applied Sciences and KINDknow-Kindergarten Knowledge Centre for Systemic Research on Diversity and Sustainable Futures(Project Number:275575).
文摘Around the world,early childhood teachers are recognized as playing a crucial role in improving children's everyday lives and strengthening their learning abilities.Consequently,explicating the professional standards of educational practice is receiving growing attention from both stakeholders—including governments,educational authorities,and parents—and early childhood teachers themselves(Campbell-Barr&Bogatic,2017;Chen et al.,2016;Havnes,2018;Hordern,2016;Oberhuemer,2005).However,despite the long recognition of children's education as an ethical task based on the values,motivation,and responsibility of teachers(Afdal&Afdal,2019;Campbell,2008;Chen et al.,2016;Forster,2012;Webster&Whelen,2019a),current discussions of standards for professional practice appear to neglect ethical aspects(Malone,2020).Moreover,despite growing public interest in and expectations of the role of teachers in early childhood education and care(ECEC),the profession is still struggling to achieve professional status(Havnes,2018,p.659;Oberhuemer,2005).
