Η ΦΩΤΟΣΥΝΘΕΣΗ ΤΟΥ ΦΥΤΟΥ ΤΗΣ ΠΙΚΡΟΔΑΦΝΗΣ (NERIUM OLEANDER) ΚΑΙ Ο ΦΩΤΟΣΥΝΘΕΤΙΚΟΣ ΜΗΧΑΝΙΣΜΟΣ ΑΥΤΟΥ

THE SEASONAL CHANGES OF PHOTOSYNTHESIS, CHLOROPLAST PIGMENTS AND PIGMENT -PROTEIN COMPLEXES AS WELL AS THE ULTRASTRUCTURAL CHANGES OF CHLOROPLASTS IN NERIUM OLEANDER WERE STUDIED IN THIS WORK. ACCORDING TO OUR RESULTS THE LEVELS OF CHLOROPHYLLS AND ESPECIALLY OF CHLB AS WELL AS THOSE OF LHCP(9/B)- UNEXPECTEDLY INCREASE AND REMAIN HIGH DURING THE SUMMER AND EARLY AUTUMN AND DECLINE DURING THE WINTER MONTHS. ON THE OTHER HAND, THE PATTERN OF THE SEASONAL CHANGES OF XANTHOPHYLLS CLEARLY CONTRASTS THAT OF THE LHCP(9/B)-II' THESE DATA ARE IN ACCORDANCEWITH OUR OBSERVATIONS ON THE ULTRASTRUCTURE OF CHLOROPLAST THYLAKOIDS IN NERIUM OLEANDER, WHICH REVEAL AN INCREASE A GRANA STACKING IN THE SUMMER AND A SUBSEQUENT DECREASE OF IT DURING THE WINTER. OUR RESULTS SUGGEST THAT IN THE CASE OFNERIUM OLEANDER, LHCP(9/B)-II NOT ONLY ABSORBS THE INCIDENT RADIATION BUT MAY ALSO FUNCTION AS A DISSIPATIVE AGENT OF EXCESS LIGHT ENERGY, DURING THE WARM SEASON. THESE DATA ARE ALSO IN ACCORDANCE WITH OTHER OBTAINED FROM PLANTS WITH XEROMORPHIC CHARACTERISTICS WHICH WERE STUDIED IN OUR LABORATORY.

Grantor dc:publisher

Γεωργικό Πανεπιστήμιο Αθηνών

Year dc:date

1990

Author dc:creator

• Μίχος, Κωνσταντίνος

• Nerium oleander
• Photosynthesis
• Photosynthetic apparatus
• Φωτοσύνθεση
• Φωτοσυνθετικός μηχανισμός
• Γεωπονικές Επιστήμες και Κτηνιατρική
• Agricultural and Veterinary Sciences
• Γεωπονία, Δασολογία και Αλιεία
• Agriculture, Forestry and Fisheries

Language dc:language

gre

Identifier

10.12681/eadd/1523

OAI identifier oai:identifier

oai:10442/1523