TY - JOUR
T1 - Hormone-induced signaling during moss development
AU - Schumaker, Karen S.
AU - Dietrich, Margaret A.
PY - 1998
Y1 - 1998
N2 - Understanding how a cell responds to hormonal signals with a new program of cellular differentiation and organization is an important focus of research in developmental biology. In Funaria hygrometrica and Physcomitrella patens, two related species of moss, cytokinin induces the development of a bud during the transition from filamentous to meristematic growth. Within hours of cytokinin perception, a single-celled initial responds with changes in patterns of cell expansion, elongation, and division to begin the process of bud assembly. Bud assembly in moss provides an excellent model for the study of hormone-induced organogenesis because it is a relatively simple, well-defined process. Since buds form in a nonrandom pattern on cells that are not embedded in other tissues, it is possible to predict which cells will respond and where the ensuing changes will take place. In addition, bud assembly is amenable to biochemical, cellular, and molecular biological analyses. This review examines our current understanding of cytokinin-induced bud assembly and the potential underlying mechanisms, reviews the state of genetic analyses in moss, and sets goals for future research with this organism.
AB - Understanding how a cell responds to hormonal signals with a new program of cellular differentiation and organization is an important focus of research in developmental biology. In Funaria hygrometrica and Physcomitrella patens, two related species of moss, cytokinin induces the development of a bud during the transition from filamentous to meristematic growth. Within hours of cytokinin perception, a single-celled initial responds with changes in patterns of cell expansion, elongation, and division to begin the process of bud assembly. Bud assembly in moss provides an excellent model for the study of hormone-induced organogenesis because it is a relatively simple, well-defined process. Since buds form in a nonrandom pattern on cells that are not embedded in other tissues, it is possible to predict which cells will respond and where the ensuing changes will take place. In addition, bud assembly is amenable to biochemical, cellular, and molecular biological analyses. This review examines our current understanding of cytokinin-induced bud assembly and the potential underlying mechanisms, reviews the state of genetic analyses in moss, and sets goals for future research with this organism.
KW - Asymmetric division
KW - Calcium signaling
KW - Cell differentiation
KW - Cell fate
KW - Cytokinin
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U2 - 10.1146/annurev.arplant.49.1.501
DO - 10.1146/annurev.arplant.49.1.501
M3 - Article
AN - SCOPUS:0031764646
VL - 49
SP - 501
EP - 523
JO - Annual Review of Plant Physiology and Plant Molecular Biology
JF - Annual Review of Plant Physiology and Plant Molecular Biology
SN - 1543-5008
ER -