Abstract:Studies were conducted to determine how a serine to threonine mutation at position 264 on the Qb binding niche of the D1 protein [urea-resistant/triazine resistant (UR/TR biotype)] in common purslane (Portulaca oleracea) impacted carotenoid and chlorophyll pigment pools and measurements of photochemical and non-photochemical quenching (NPQ) following applications of various inhibitors of carotenoid biosynthesis (CBI) and the Photosystem II (PSII) inhibitor diuron when applied alone, or in mixtures, as compared… Show more
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