000 017280000a22004690004500
911 _aCR1986806997
901 _aF61
904 _aBCO
905 _aC
906 _a19860101
908 _aJ
909 _aAS
912 _aEn
914 _aCAFE
100 1 _aBlanco, H.G.
100 1 _aHaag, H.P.
100 1 _aOliveira, D. de A.
100 1 _aSarruge, J.R.
260 _cEne-Mar 1972
500 _a++Dat. num. 27 ref. Sum. (En, Pt)
520 _aResearches were conducted in order to demonstrate that zinc absorption is an active process. Studies on absorption of zinc labeled with 65Zn, were carried out with leaves slices in regard to the time course of uptake, temperature, light, oxigen, pH of external solution, 2.4 DNP, sucrose, urea, boron, copper and mercury. The concluding comments are: the absorption of zinc is an actif process. Sucrose and urea depresse the absorption of zinc. Copper, boron and mercury competetively interfer with transport zinc into the "inner" space
650 1 4 _aCOFFEA ARABICA
650 1 4 _aRADIOISOTOPOS
650 1 4 _aFISIOLOGIA
650 1 4 _aZINC
650 1 4 _aANALISIS DE TEJIDOS
650 1 4 _aABSORCION FOLIAR
650 1 4 _aEFECTOS DE LA TEMPERATURA
650 1 4 _aEFECTOS DE LA LUZ
650 1 4 _aBOURBON
691 _aCOFFEA ARABICA
691 _aRADIOISOTOPES
691 _aTISSUE ANALYSIS
692 _aCOFFEA ARABICA
692 _aISOTOPE RADIOACTIF
692 _aANALYSE DE TISSUS
773 0 _tArquivos do Instituto Biológico (Brasil)
_dEne-Mar 1972
_gv. 39(1) p. 1-12
040 _aCR-TuBCO
_cCR-TuBCO
_bEs
245 1 0 _aAbsorçao de zinco por tecido foliar de cafeeiro (Coffea arabica L.)
942 _cAS
003 CR-TuBCO
999 _c426775
_d426775