| food stress prompts dispersal behavior in apterous pea aphids: do activated aphids incur energy loss? | the pea aphid, acyrthosiphon pisum (hem: aphididae), has been repeatedly used as a model species in a wide range of biological studies including genetics, ecology, physiology, and behavior. when red pea aphids feed on low quality plants in crowded conditions, some individuals lose their color shade and become pale yellowish, while other individuals on the same host plants remain changeless. the pale aphids have been shown to walk significantly faster and migrate more frequently to neighboring pl ... | 2013 | 23262143 |
| amine oxidase from lathyrus cicera and phaseolus vulgaris: purification and properties. | cu-amine oxidases (amine oxygen oxidoreductase deaminating, copper containing e.c. 1.4.3.6.) are found in all forms of life (1). they catalyze the following general reaction: r-ch2-nh2 + o2 + h2o----r-cho + nh3 + h2o2. cu-amine oxidases (cu-aos) have been extracted from different leguminosae: pisum sativum (2-3), lathyrus sativus (4), lens esculenta (5), vicia faba (6), cicer arietinum (7), glycine max (8) but not from phaseolus vulgaris. palavan and galston (9), in a study of polyamine biosynth ... | 1989 | 2798365 |
| comparative transmission of two cucumber mosaic virus isolates by two color morphs of acyrthosiphon pisum (harris). | cucumber mosaic virus (cmv) is one of the most important legume-infecting viruses, which is transmitted effectively by pea aphid acyrthosiphon pisum (harris) (hem: aphididae). transmission efficiency of two cmv isolates (as and kh from cowpea and bean hosts, resp.) by red and green color morphs of pea aphid were evaluated on bean plants. triple-antibody sandwich elisa (tas-elisa) using cmv-specific monoclonal antibodies revealed that both cmv isolates belonged to the serotype ii. bean plants ino ... | 2012 | 22720705 |
| the nutritive value of some legumes; lathyrism in the rat; the sweet pea, lathyrus odoratus, lathyrus sativus, lathyrus cicera and some other species of lathyrus. | | 1948 | 18892935 |
| substrate specificity of copper-containing plant amine oxidases. | the steady-state kinetic parameters of the amine oxidases purified from lathyrus cicera (lcao) and pisum sativum (psao) seedling were measured on a series of common substrates, previously tested on bovine serum amine oxidase (bsao). lcao, as psao, was substantially more reactive than bsao with aliphatic diamines and histamine. the k(cat) and k(cat)/km for putrescine were four and six order of magnitude higher, respectively. differences were smaller with some aromatic monoamines. the plot of k(ca ... | 2007 | 17521737 |
| inactivation of copper-containing amine oxidases by turnover products. | for bovine serum amine oxidase, two different mechanisms of substrate-induced inactivation have been proposed. one consists of a slow oxidation by h2o2 of a conserved residue in the reduced enzyme after the fast turnover phase [pietrangeli, p., nocera, s., fattibene, p., wang, x.t., mondovì, b. & morpurgo, l. (2000) biochem. biophys. res. commun.267, 174-178] and the other of the oxidation by h2o2 of the dihydrobenzoxazole in equilibrium with the product schiff base, during the catalytic cycle [ ... | 2004 | 14686927 |