AtPNP-A is a systemically mobile natriuretic peptide immunoanalogue with a role in Arabidopsis thaliana cell volume regulation.
作者： Monique Morse , Ganka Pironcheva , Chris Gehring
DOI: 10.1016/S0014-5793(03)01384-X
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摘要: Abstract Cellular and physiological evidence suggests the presence of a novel class systemically mobile plant molecules that are recognized by antibodies against vertebrate atrial natriuretic peptides (ANPs). In order to characterize function these immunoanalogues we have expressed full-length recombinant (AtPNP-A[1–126]) demonstrate this molecule induces osmoticum-dependent H 2 O uptake into protoplasts at nanomolar concentrations thus affects cell volume. A similar response is also seen with does not contain signal peptide (AtPNP-A[26–126]) as well short domain (AtPNP-A[33–66]) shows homology peptide. Taken together, findings suggest AtPNP-A has an important systemic role in growth homeostasis.
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