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Inositol 1,4,5‐Trisphosphate distribution in Lycopersicon esculentum mill. seedlings cultivated “in vitro” under different conditions
Author(s) -
Piacentini Maria Piera,
Ricci Donata,
Fraternale Daniele,
Piatti Elena,
Manunta Antonio,
Accorsi Augusto
Publication year - 1997
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549700201871
Subject(s) - lycopersicon , cotyledon , inositol , hypocotyl , seedling , phosphatidylinositol , in vitro , botany , biology , chemistry , horticulture , biochemistry , signal transduction , receptor
Measurements of inositol 1,4,5‐trisphosphate (Ins 1,4,5‐P3 in cotyledons, epicotyls and roots of tomato seedlings grown “in vitro” either in the light or in the dark indicated that higher concentrations of this signal‐transducing molecule are contained in hypogeous vs. epigeous tissues. The same was observed in induced cotyledon explants grown in the light in the presence of growth regulators. Data concerning phosphatidylinositol metabolism in seedling roots are also reported. Taken together, our results may be helpful in understanding the role of the polyphosphoinositide signal system in plants.