?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Effects+of+agricultural+production+systems+and+their+components+on+protein+profiles+of+potato+tubers&rft.creator=Lehesranta%2C+Satu+J.&rft.creator=Koistinen%2C+Kaisa+M.&rft.creator=Massat%2C+Nathalie&rft.creator=Davies%2C+Howard+V.&rft.creator=Shepherd%2C+Louise+V.+T.&rft.creator=McNicol%2C+James+W.&rft.creator=Cakmak%2C+Ismail&rft.creator=Cooper%2C+Julia&rft.creator=L%C3%83%C2%BCck%2C+Lorna&rft.creator=K%C3%83%C2%A4renlampi%2C+Sirpa+O.&rft.creator=Leifert%2C+Carlo&rft.subject=Crop+health%2C+quality%2C+protection&rft.subject=+Root+crops&rft.description=A+range+of+studies+have+compared+the+level+of+nutritionally+relevant+compounds+in+crops+from+organic+and+nonorganic+farming+systems%2C+but+there+is+very+limited+information+on+the+effect+of+farming+systems+and+their+key+components+on+the+protein+composition+of+plants.+We+addressed+this+gap+by+quantifying+the+effects+of+different+farming+systems+and+key+components+of+such+systems+on+the+protein+profiles+of+potato+tubers.+Tuber+samples+were+produced+in+the+Nafferton+factorial+systems+study%2C+a+group+of+long-term%2C+replicated+factorial+field+experiments+designed+to+identify+and+quantify+the+effect+of+fertility+management+methods%2C+crop+protection+practices+and+rotational+designs+used+in+organic%2C+low+input+and+conventional+production+systems.+Protein+profiles+were+determined+by+2-DE+and+subsequent+protein+identification+by+HPLC-ESI-MS%2FMS.+Principal+component+analysis+of+2-DE+data+showed+that+only+fertility+management+practices+(organic+matter+vs.+mineral+fertiliser+based)%2C+had+a+significant+effect+on+protein+composition.+Quantitative+differences+were+detected+in+160+of+the+1100+tuber+proteins+separated+by+2-DE.+Proteins+identified+by+MS+are+involved+in+protein+synthesis+and+turnover%2C+carbon+and+energy+metabolism+and+defence+responses%2C+suggesting+that+organic+fertilisation+leads+to+an+increased+stress+response+in+potato+tubers.&rft.publisher=Wiley-VCH&rft.date=2007&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F10760%2F1%2FLehesranta_et_al_2007.pdf&rft.identifier=Lehesranta%2C+Satu+J.%3B+Koistinen%2C+Kaisa+M.%3B+Massat%2C+Nathalie%3B+Davies%2C+Howard+V.%3B+Shepherd%2C+Louise+V.+T.%3B+McNicol%2C+James+W.%3B+Cakmak%2C+Ismail%3B+Cooper%2C+Julia%3B+L%C3%83%C2%BCck%2C+Lorna%3B+K%C3%83%C2%A4renlampi%2C+Sirpa+O.+and+Leifert%2C+Carlo+(2007)+Effects+of+agricultural+production+systems+and+their+components+on+protein+profiles+of+potato+tubers.+Proteomics%2C+7%2C+pp.+597-604.&rft.relation=http%3A%2F%2Forgprints.org%2F10760%2F