passages.id: split_8_test_2778_passage
passages.type: progene_text
passages.text: An antibody to StPT2 , a potato root specific transporter , detected two bands ( 52 kDa and 30 kDa ) on western blots of root plasma membrane extracts that were most intense in whole extracts from the root tip and slightly increased throughout the root in response to phosphate depletion .