Search Results - (Author, Cooperation:J. M. Clarke)

2011-01-29

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Acetates/*metabolism ; Animals ; Bifidobacterium/genetics/*metabolism ; Cercopithecus aethiops ; Escherichia coli Infections/microbiology/*prevention & control ; Escherichia coli O157/*physiology ; Gene Expression Profiling ; Genome, Bacterial ; Mice ; Molecular Sequence Data ; Vero Cells

2013-11-15

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Acetylation/drug effects ; Adoptive Transfer ; Animals ; Butyrates/analysis/*metabolism/pharmacology ; *Cell Differentiation/drug effects ; Colitis/drug therapy/pathology ; Colon/cytology/*immunology/metabolism/*microbiology ; Conserved Sequence ; Female ; *Fermentation ; Forkhead Transcription Factors/genetics ; Germ-Free Life ; Histones/metabolism ; Homeostasis/drug effects ; Intestinal Mucosa/cytology/immunology ; Lymphocyte Count ; Magnetic Resonance Spectroscopy ; Male ; Metabolome ; Mice ; Promoter Regions, Genetic/drug effects ; *Symbiosis ; T-Lymphocytes, Regulatory/*cytology/drug effects/immunology

2018-07-05

Institute of Physics (IOP)

1367-2630

Physics

1439-0523

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Doubled haploid plants are useful in genetic studies and plant breeding, but a consistent and satisfactory frequency of production has been difficult to achieve in durum wheat. Triticum turgidum L., using the maize pollen method. The objective of this study was to develop an objective method of producing doubled haploids in durum wheat. Plant growing and handling conditions, aspects of hormone treatments, wheat genotype and pollen source were considered. The number of caryopses, embryos, haploids, doubled plants and doubled plants that set seed were measured. Although growth conditions, pollen source, method of handling plants and wheat genotype are important considerations, the type of hormone was found to be most significant in the production of doubled haploid plants. When 50mg/l dicamba was substituted for 100 mg/l 2,4-D the number of doubled haploids per spike increased from 0.2 for the best 2,4-D treatment to 1.3 for the dicamba treatment. This increased frequency was largely attributed to an increase in the number of caryopses generated for each spike emasculated and from an increased frequency of germination of embryos to haploid plantlets. The best production of caryopses was 0.41 caryopses per florest with 2,4-D. The best production of haploids per 100 florets was 12 with dicamba and 1.65 with 2,4-D. The frequency of one doubled haploid per emasculated spike through the use of dicamba is a practical level for generating populations for genetic studies.

Electronic Resource

1572-9680

fodder trees ; fruit trees ; gardens ; grazing area ; species composition ; traditional agroforestry practices ; Zimbabwe

Springer Online Journal Archives 1860-2000

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Abstract Traditional agroforestry systems in the communal areas of Zimbabwe are described. There are systems centered on main fields, on home gardens, on homesites and on grazing areas. In the main fields, the major tree-related management practice is the conservation of preferred indigenous fruit trees. Fruit trees are also the focus of forestry activities around the gardens and the homesite; but here it is the planting of exotic species. In a localized area of Zimbabwe Acacia albida is important in fields. There is almost no use of tree fallows in Zimbabwe. Trees in grazing areas have numerous roles, but at present there is little knowledge about traditional management practices in these areas. In the development of agroforestry systems in Zimbabwe it is suggested that those systems designed to improve fodder production will make a significant contribution to farm productivity because of the importance of cattle in the farming system and the present fodder shortage. Interventions involving the planting of fruit trees are likely to be very successful, as there is much interest in such planting. Another area that needs to be developed is that of tree plantings to improve soil fertility.

Electronic Resource

1432-0843

Springer Online Journal Archives 1860-2000

Medicine

Summary A total of 44 women received a combination of ifosfamide (1.5 g/m2 daily x5) and cisplatin (50 mg/m2 on day 1 only) as first-line chemotherapy for recurrent or metastatic carcinoma of the cervix. In all, 12/42 (38%) evaluable patients responded, with the median duration of response being 7 months. Bone marrow and gastrointestinal toxicity were frequently severe. There were 3 septic death. Although cisplatin plus ifosfamide is an active combination against this disease, these results suggest that it is no more so than either drug used alone.

Electronic Resource

1573-5060

Triticum aestivum ; wheat ; germination ; immature grains

Springer Online Journal Archives 1860-2000

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Summary The results indicated that acceleration of generation time in wheat was practical. The method developed by Mukade et al. (1973) was improved by extending the hydrogen peroxide treatment at low temperature.

Electronic Resource

1573-5060

Triticum aestivum ; wheat ; shattering ; awns ; height

Springer Online Journal Archives 1860-2000

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Summary Temporal changes in shattering losses of 14 wheat (Triticum aestivum L.) genotypes were studied in an irrigated environment. The lines ranged in height from 68 to 98 cm; eight lines were fully awned while five were not. Shattered kernels were gathered at weekly intervals for 6 wk; samping commenced at 30 to 40% kernel moisture and continued for 3 wk beyond harvest ripeness (14.5% moisture). Shattering loss, expressed as a percentage of yield, ranged from 3.25 to 17.3% over the 6 wk period. Awnedness was not a factor in shattering susceptibility of the genotypes studied. Both the most and least shattering resistant lines in this study were awnless. There was a nonsignificant correlation between shattering losses and plant height. It was concluded that a single quantitative measurement of shattering loss at or after harvest ripeness (14.5% moisture) would provide an adequate measure of shattering susceptibility.

Electronic Resource