Photosynthesis and more at the Department of biology, agriculture and food sciences of the National Research Council of Italy
Il 21/11/2016 ore 11.30 - 13.00
Ise-Cnr Istituto per lo studio degli ecosistemi
Largo Tonolli 50, 28922 Verbania Pallanza
Seminario di Francesco Loreto (CNR Department of biology, agriculture and food sciences).
The Department of biology, agriculture and food sciences (Disba) of the National Research Council of Italy covers a whole spectrum of biological interactions potentially leading to sustainable development and circular economy. Volatile organic compounds (VOC) emitted by terrestrial and aquatic photosynthetic organisms are among those compounds that are now investigated for their usefulness. VOC allow plants communicating within them and with other (useful or noxious) organisms. One VOC, isoprene, is emitted by leaves of around 20% of the plant species and by many algae, represents more than 30% of total biogenic VOC emissions worldwide, and has no clear communication role. Around 90% of the carbon going into isoprene synthesis is directly shunted from photosynthesis intermediates.
Alternative sources of carbon are activated under abiotic (environmental, e.g. drought, heath, pollution) stress, which sustain isoprene emission when photosynthesis is inhibited, suggesting an important role for isoprene in stress protection. An overview about possible mechanisms at the basis of isoprene function in protecting the photosynthetic apparatus from stresses will be given.
Recent results showing that plants are able to orchestrate daily their antioxidant defenses (including isoprene) under stress conditions will be presented. Finally, ideas about how the pathway producing isoprene has evolved, and how important isoprene emission is for photosynthesis protection in response to climate change and associated environmental pressures will be illustrated.
Organizzato da:
Cnr Ise - Istituto per lo Studio degli Ecosistemi
Referente organizzativo:
Marina M. Manca
CNR - Istituto per lo studio degli ecosistemi
segreteria@ise.cnr.it
0323 518300
Modalità di accesso: ingresso libero
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