Photosynthesis research in Italy: a review

Giorgio Forti1, Angela Agostiano, Roberto Barbato

  • 1Istituto di Biofisica del CNR, Sezione di Milano e Dipartimento di Biologia dell'Università degli Studi di Milano, Via Celoria 26, Milan 20133, Italy. giorgio.forti@unimi.it

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Photosystem II01:22

Photosystem II

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Photosystem I01:27

Photosystem I

Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

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The Calvin Benson Cycle01:46

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Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
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The Z-Scheme of Electron Transport in Photosynthesis

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