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Stochastic Turing patterns of trichomes in Arabidopsis leaves.
Di Patti, Francesca; Ugartechea Chirino, Yamel; Arbel-Goren, Rinat; Sharon, Tom; Castillo, Aaron; Alvarez-Buylla, Elena; Fanelli, Duccio; Stavans, Joel.
Afiliação
  • Di Patti F; Dipartimento di Matematica e Informatica, Universitá degli Studi di Perugia, Perugia 06123, Italia.
  • Ugartechea Chirino Y; Istituto Nazionale di Fisica Nucleare - Sezione di Perugia, Perugia 06123, Italia.
  • Arbel-Goren R; Instituto de Ecología, Universidad Nacional Autónoma de México Ciudad, Universitaria 3er Circuito Interior Coyoacán, Ciudad de México 04510, México.
  • Sharon T; Faculty of Physics, Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
  • Castillo A; Faculty of Physics, Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.
  • Alvarez-Buylla E; Instituto de Ecología, Universidad Nacional Autónoma de México Ciudad, Universitaria 3er Circuito Interior Coyoacán, Ciudad de México 04510, México.
  • Fanelli D; Instituto de Ecología, Universidad Nacional Autónoma de México Ciudad, Universitaria 3er Circuito Interior Coyoacán, Ciudad de México 04510, México.
  • Stavans J; Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Firenze 50019, Italia.
Proc Natl Acad Sci U S A ; 120(42): e2309616120, 2023 10 17.
Article em En | MEDLINE | ID: mdl-37824528
Biological patterns that emerge during the morphogenesis of multicellular organisms can display high precision at large scales, while at cellular scales, cells exhibit large fluctuations stemming from cell-cell differences in molecular copy numbers also called demographic noise. We study the conflicting interplay between high precision and demographic noise in trichome patterns on the epidermis of wild-type Arabidopsis thaliana leaves, as a two-dimensional model system. We carry out a statistical characterization of these patterns and show that their power spectra display fat tails-a signature compatible with noise-driven stochastic Turing patterns-which are absent in power spectra of patterns driven by deterministic instabilities. We then present a theoretical model that includes demographic noise stemming from birth-death processes of genetic regulators which we study analytically and by stochastic simulations. The model captures the observed experimental features of trichome patterns.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arabidopsis / Proteínas de Arabidopsis Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arabidopsis / Proteínas de Arabidopsis Idioma: En Ano de publicação: 2023 Tipo de documento: Article