Root Exudate Metabolomics Reveals Phosphorus Acquisition Strategies in Lupinus albus
Rodrigues A, Tanaka M, Schmidt H
Summary
8.6/10White lupin roots secrete specialized chemicals at 50x normal rates to mine phosphorus, including 2 novel flavonoids that recruit helpful soil microbes.
Key Findings
50x citrate/malate secretion in cluster roots
23 novel exudate compounds identified
2 new flavonoids enhance microbial phosphatase
Original Abstract
White lupin cluster roots secrete citrate and malate at rates 50x higher than non-cluster roots. Metabolomic profiling identified 23 novel exudate compounds under P-deficiency, including two previously unknown flavonoids that enhance microbial phosphatase activity.
Species Mentioned
Lupinus albus, commonly known as the white lupin, is a species of the genus Lupinus in the family Fabaceae native to the northeastern Mediterranean region. It is also a traditional pulse cultivated across the Mediterranean region and elsewhere.
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