Publications

in vivo decondensation of chromatin and nucleolar fibrillar component by leucaena leucocephala ingredient.	feeding of the shrimp, penaeus monodon, with diets containing leaf meal of the leguminous shrub, leucaena leucocephala, resulted in complete chromatin decondensation of hepatopancreas cells. the fibrillar component of the nucleolus was decondensed in parallel, whereas the granular component remained intact. this unique combination of nuclear signs was accompanied by only moderate alterations of other cell organelles. our findings therefore demonstrate an encouraging possibility to manipulate the ...	1991	1794061
site-directed mutagenesis and dna sequence of pcka of rhizobium ngr234, encoding phosphoenolpyruvate carboxykinase: gluconeogenesis and host-dependent symbiotic phenotype.	we have cloned and sequenced the pcka gene of rhizobium sp. ngr234, a broad host-range strain. the gene encodes phosphoenolpyruvate carboxykinase (pepck), a key enzyme of gluconeogenesis. the locus was isolated and subcloned from a genomic library of ngr234 employing hybridization with an r. meliloti pck gene probe and complementation of a tn5 mutant in this species. the dna sequence of pcka (ngr234) was determined and encoded a pepck protein of 535 amino acids with a molecular weight of 58.4 kd ...	1991	1720862
differential expression of nods accounts for the varied abilities of rhizobium fredii usda257 and rhizobium sp. strain ngr234 to nodulate leucaena spp.	transfer of a cosmid containing nodsu from rhizobium sp. ngr234 to rhizobium fredii usda257 expands the host range for nodulation to include the perennial tropical legumes, leucaena leucocephala and leucaena diversifolia. complementation experiments with a series of subclones established that nods and its associated nod-box promoter from ngr234 are sufficient to confer this extended host-range phenotype to l. leucocephala. strain usda257 contains its own copy of nodsu, including upstream nod-box ...	1992	1484488
fate of mimosine administered orally to sheep and its effectiveness as a defleecing agent.	mimosine was administered orally to merino sheep once daily for periods of 1-3 days, either as the isolated compound or in the foliage of leucaena leucocephala. a single daily dose of mimosine of 450 or 600 mg/kg body weight was effective for defleecing sheep. a daily dose rate of 300 mg/kg was effective for defleecing sheep if given on two successive days. the effectiveness of a treatment for defleecing sheep was related to the concentration of mimosine in plasma following dosing; defleecing en ...	1975	1225286
mimosine in leucaena leucocephala is metabolised to a goitrogen in ruminants.		1976	1016147
letter: the effects of leucaena leucocephala on cattle in the northern territory,.		1976	986805
nutritive value of leucaena leucocephala for growing bull calves.	twelve cross-bred (holstein x gir) bull calves (11-12 months of age) were divided into two groups and fed over a 90 day period on two levels of leucaena. animals in group i were offered leucaena ad lib. whilst those in group 2 received a restricted amount of leucaena plus a mixture of sorghum straw and molasses (75:25) fed ad lib. digestibilities of dry matter, crude protein, acid detergent fibre and neutral detergent fibre for leucaena are presented. the live weight gain was significantly (p le ...	1978	746592
toxicity of leucaena leucocephala. the effect of iodine and mineral supplements on penned steers fed a sole diet of leucaena.	steers fed a sole diet of leucaena leucocephala cv. peru (leucaena), rapidly developed a hypothyroid condition. total serum thyroxine (t4) levels declined from c 120 n mol litre-1 to 13 n mol litre-1 within six weeks of full leucaena feeding. associated with the hypothyroidism was a declined in feed intake, poor weight gain, hair loss, excessive salivation and the development of lesions on the oesophagus of some animals. light steers (119 kg) were more severely affected than heavy steers (220 kg ...	1978	718558
the goitrogen 3-hydroxy-4(1h)-pyridone, a ruminal metabolite from leucaena leucocephala: effects in mice and rats.	mice fed a diet containing 1% (w/w) 3-hydroxy-4(1h)-pyridone (dhp) developed goitre even with a diet high in iodine whereas mimosine (0.5% w/w) did not produce goitre even with a low-iodine diet. thyroid enlargement was apparent (measured morphometrically) by the 7th week and was advanced by the 11th week. histologically the goitre was hyperplastic in type. no marked histological changes were found in other organs of mice fed dhp or any organs of mice fed mimosine, except for some atrophy of hai ...	1979	90499