CAROTENOIDS 



Octahydrolycopene {see ^-carotene) 



Octopus, 178-9 



Okra, 296, 304 



Olfactory tissue, cattle, 245 



Olives, 296 



Onion leaves, 292 



Onions, 296, 300 



Ophiuroids, 162 



Oranges, 28, 30-2, 39-40, 81, 296, 



304 

 Orchard grass {see cocksfoot) 

 Orthoptera, 217-222 

 Orthopteroerythrin, 218 

 Oscillaxanthin, 136 

 Otaheite gooseberry, 304 

 Ova {see eggs) 

 Ovaries of arthropods, 169-73 



— of coelenterates, 161 



— of cows, 244 



— of decapods, 168 



— of echinoids, 165 



— of frogs, 210, 212 



— of goats, 248-9 



— of limpets, 180 



— of newts, 211 



— of trout, 202 



— of whales, 198 



— of locusts, 219 

 Oviducts of frogs, 210 

 Ovoester, 169 

 Ovoverdin, 168, 170, 173 

 Oxygen and ripening of fruit, 40 

 Oxygen tension and carotenogenesis, 



114, 127, 141 

 Oxygen transport, 85-6 

 Oysters, 176 



Pacaya, 300 



Pacific killifish, 192, 194 



Palm cabbage, 30, 296, 300, 302 



Palmitylascorbic acid, 252 



Palmyra, 296 



Pan leaf, 292 



Pancreas, frog, 212 



— human, 231 

 Panicum, 292 

 Papayas, 24, 30, 296, 302 

 Paprika {see peppers) 

 Parasitic infusorians, 155 

 Parrot, 262 



Parsley, 292, 302 

 Parsnip, 296 

 Parturition in cattle, 243 



— in humans, 232 

 Parwar, 292 

 Paspalum, 292 

 Passion flower fruit, 296 



Pathological conditions of plants, 



82-3 

 Peach palm, 304 

 Peaches, 25-6, 30, 40, 297,, 306 

 Pears, 306 



Pears, avocado, 24, 297 

 Pea nut, 306 



Peas, 43-4, 81-2, 88, 292, 297, 306 

 Peat, 209-10 

 Pectenoxanthin, 162, 176-7, 181-5 



189-90, 256 

 3:5:7,9, 1 1 - penta cis- ^-carotene 



{see pro- C-carotene) 

 Pentaxanthin, 164-5, 181-5 

 Pepino, 306 

 Peppers, 32, 39-40, 43, 81, 189, 292, 



297 

 Peptic ulcer, 251 

 Perch, 203 



Perennial rye grass, 292 

 Perhydrolycopene, 64 

 Peridinieae {see Dinophyceae) 

 Peridinin {see Sulcatoxanthin) 

 Perilla, 292 



Perivisceral fluid of echinoids, 163-4 

 Pernicious anaemia, 235 

 Petaloxanthin, 47, 50-1, 198 

 Petals, flower, 45-50, 72-3 

 Petastines, 292 

 Petiole, leaf, 19 

 pH and carotenogenesis, 78, 114- 



15, 126-7 

 Phaeophyceae, 132-4 

 Phagocytes, in frogs, 211 

 Phalloidaceae, 100 

 Phanerogams, 99-115 

 Pheasants wattles, 260 

 Phillipine spinach, 302 

 Phloem of carrots, 

 Phoenicotterin, 214, 223, 260 

 Phosphorus and carotenogenesis, 77, 



126, 140 

 Photodestruction of carotenoids, 92 

 Photic responses in fish, 196-7 

 Photokinesis, 87-9. 117-18. 145-^ 

 Photoperiodism, 75 

 Photosynthesis, 86-7, 127-8, 141-5 

 Photosynthetic bacteria, 127-8 

 Photosynthin, 128 

 Photic orientation, 146 

 Phototropism, 88-9, 117-18, 128, 



206-7 

 Phycobilin, 145 

 Phycoxanthin, 135 

 Phylogenetic relationships, 12 

 Physalien, 32, 39 

 Phthiocol, 120 

 Phytoene, 28-9, 35, 68-9, 103, 115-6 



352 



