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A mutation in the maize Ms45 gene results in a male-sterile phenotype due to the absence of pollen. Cytological examination of microspores in ms45 mutant plants reveals that the cell wall of the developing male gametophyte is poorly formed, while genetic analysis indicates that mutations at Ms45 are sporophytic. The Ms45 gene has been isolated by transposon(More)
In normal anther development in maize (Zea mays L), large hypodermal cells in anther primordia undergo a series of proscribed cell divisions to form an anther containing microsporogenous cells and three distinctive anther wall layers: the tapetum, the middle layer and the endothecium. In homozygous msca1 mutants of maize, stamen primordia are initiated(More)
Two recessive male-sterile mutants of maize with similar patterns of pollen abortion were studied. Genetic studies showed that one of the two mutations was allelic with a previously identified male-sterility locus (ms23) and the other mutation was in a newly identified male-sterility locus (ms32). Cytological characterization of homozygous mutants and(More)
We have developed a novel hybridization platform that utilizes nuclear male sterility to produce hybrids in maize and other cross-pollinating crops. A key component of this platform is a process termed Seed Production Technology (SPT). This process incorporates a transgenic SPT maintainer line capable of propagating nontransgenic nuclear male-sterile lines(More)
OBJECTIVE Little is known about teaching paediatricians to prescribe or about assessing their competency. This study aimed to identify educational interventions to reduce dose calculation errors. DESIGN Literature review, a questionnaire survey of paediatric healthcare professionals, observation and interviews were performed. RESULTS Literature review(More)
The concept of frailty has been evolving dramatically for the past 30 years. Through its evolution, a variety of single and multidimensional models have been used to describe frailty. This article reviews the current literature related to the defining dimensions of frailty and identifies the gaps in the literature requiring additional research. A detailed(More)
The tomato (Lycopersicon esculentum) acid phosphatase-1 (Apase-1(1), EC 3.1.3.2) isozyme variant, genetically linked to the root-knot nematode resistance locus (Mi) on chromosome 6, has been purified by a rapid procedure from tomato cell suspension cultures. Peptide fragments of the purified enzyme were generated from trypsin and Lys-C endoprotease digests(More)
  • T Fox
  • 2011
BACKGROUND Domestic violence is endemic in PNG accounting for 90% of female trauma. It is a significant cause of morbity in the country and a drain on already scarce healthcare resources. Few studies have assessed the scale of the problem in rural areas. AIM To assess the scale of the problem in the Western Province and the views of the victims to try and(More)