Table 8: Intracellular and extracellular acid phosphatase activities in leaves and roots of wheat (Triticum vulgare L.) plants cultured 1-3 weeks on phosphate-sufficient (+P) or phosphate-deficient (-P) nutrient medium. Means ± SD.

Parameters 7 days 14 days 21 days
+P -P +P -P +P -P
(μmol g-1 FW h-1)
Leaf Acid Phosphatases 147 ± 20 156 ± 12.8 205 ± 18.8 260 ± 28.8* 216 ± 11.5 506 ± 54.6*
Root Intracellular
Acid Phosphatases 		49.5 ± 8.7 61.3 ± 12.9* 71.6 ± 11.4 96.9 ± 7.1* 123 ± 7.2 122 ± 13.6
Extracellular
Acid Phosphatase:
Intact Root 		30.2 ± 3.5 54.3 ± 3.4* 18 ± 1.9 50.8 ± 8.5* 21.8 ± 1.6 77.2 ± 6.4*
Extracellular
Acid Phosphatase:
Root Tips 		91.9 ± 6.5 165 ± 6.7* 61.5 ± 1 126 ± 5.9* 30.6 ± 3.6 155.3 ± 4.2*

* Significantly different at 0.05