02203naa a2200265 a 450000100080000000500110000800800410001902400420006010000230010224501430012526000090026852013290027765000130160665000280161965000120164765300220165965300270168165300180170865300290172665300250175565300290178065300240180970000180183377300860185120533282017-02-20       2016    bl uuuu     u00u1 u    #d7 a10.5433/1679-0359.2016v37n4p17332DOI1 aSILVA, F. F. S. da  aQuantification of storage proteins during seed imbibition of native species from the brazilian Caatinga vegetation.h[electronic resource]  c2016  aPoincianella pyramidalis (Fabaceae), Schinopsis brasiliensis (Anacardiaceae) and Sideroxylon obtusifolium (Sapotaceae) are native species of the Caatinga vegetation from Northeastern Brazil and have both biological importance and potential economic uses. Little is known about the water uptake and degradation of storage proteins during seed germination of these species. The aim of this study was to evaluate the imbibition and quantify the amount of storage proteins during seed germination of P. pyramidalis, S. brasiliensis and S. obtusifolium. Two lots of S. obtusifolium seeds with different vigour were used. Four replicates of 20 seeds of P. pyramidalis, S. brasiliensis and S. obtusifolium, were sown onto gerboxes with blotting paper soaked in distilled water and incubated during 72, 200 and 624 hours. Before and after imbibition seeds were weighed and frozen at until the sequential extraction and analysis of the seed storage proteins. Based on our results, we conclude that seed germination of P. pyramidalis, S. brasiliensis and S. obtusifolium has a well-defined triphasic imbibition. All storage proteins content of P. pyramidalis and S. brasiliensis seeds degraded along with the seed imbibition. Likewise, the content of albumins, globulins and glutelins decreased as S. obtusifolium seeds absorbed water  aCaatinga  aSchinopsis Brasiliensis  aSemente  aEspécies nativas  aFloresta tropical seca  aPlanta nativa  aPoincianella pyramidalis  aReserve mobilisation  aSideroxylon obtusifolium  aTropical dry forest1 aDANTAS, B. F.  tSemina. Ciências Agrárias, Londrinagv. 37, n. 4, p. 1733-1744, jul./ago. 2016.