low efficiency of callus induction and green-plant regeneration have limited the application of anther culture in breeding programs. this study was conducted to determine the inheritance of callus induction and plant regeneration in rice (oryza sativa) anther culture. ten genotypes drived from a five-parent diallel mating set contain khazar, sepidrood, hashemi, alikazemi and nematt were evaluat...

some soil physical and chemical characteristics were analyzed in order to reveal the relationship between forest soils and regeneration patches. gorazbon district of kheyrud was selected as a case study for the research area. all regeneration patches were recorded using gps device. to assess the spatial structure and to quantify the metrics of regeneration patches, analyzing of landscape metric...

Rhodopsin (visual purple), the photolabile chromoprotein in the retinal rod cells of most vertebrates, bleaches in the light with the release of unstable orange lipides (1) which appear to be precursors (2, 3) of vitamin A aldehyde (retinene) (4, 5). The aldehyde is ultimately reduced to vitamin A alcohol by an enzymatic process (2), which requires reduced diphosphopyridine nucleotide as coenzy...

Conventional methods of pear breeding, largely based on intra- and inter-specific hybridization, are difficult because pear is highly heterozygous, polygenic and has a long juvenile period. Genetic improvements of pear cultivars are possible through induction of mutations and gene transfer by genetic engineering. A general prerequisite for these approaches is to establish an efficient plant reg...

We report about the possibility of using regenerated fiber Bragg gratings generated in photosensitive fibers without applying hydrogen loading for high temperature sensor networks. We use a thermally induced regenerative process which leads to a secondary increase in grating reflectivity. This refractive index modification has shown to become more stable after the regeneration up to temperature...

Ex-situ catalytic pyrolysis of pure glycerol to bio-aromatics over an un-modified H-ZSM-5 zeolite. • The conversion aromatics (BTX) with zeolite was investigated. An ex-situ approach used a separate and upgrading unit. A BTX peak carbon yield 28.1 ± 0.2% obtained. Catalyst performance for 5 reaction/regeneration cycles determined. Irreversible catalyst deactivation observed due dealumination th...

A set of elementary surface reactions is proposed for modeling the chemistry in a lean NOx trap during regeneration (reduction of stored NOx). The proposed reaction mechanism is based on a series of flow reactor temperature ramp experiments performed on a core sample from a fully formulated lean NOx trap catalyst. The experiments used simultaneous flow of NOx and reductant species (H2 and CO) t...