nicotiana tabacum/atrophy

Degenerate potyvirus-specific primers were used in the PCR to amplify cDNA representing a 335 nucleotide region of the coat protein gene in RNA purified from an uncharacterised potyvirus isolated from Roystonea regia palms in Queensland, Australia. The RNA was also detected by PCR in total nucleic

We show that seed-specific overexpression of the sunflower (Helianthus annuus) HaHSFA9 heat stress transcription factor (HSF) in tobacco (Nicotiana tabacum) enhances the accumulation of heat shock proteins (HSPs). Among these proteins were HSP101 and a subset of the small HSPs, including proteins

Prayer plants (Maranta spp.), which are indigenous to Brazil, are commercially produced in nurseries mainly to be sold as potted houseplants. However, in frost-free areas, they are also used as a ground cover. In March 2009, the Division of Plant Industry in Gainesville, FL received cuttings of

Synthetic nitroguanidine derivatives can be used as alternatives to the traditional adenine-containing cytokinins used in plant tissue culture. First, nitroguanidine derivatives (NG) mimicked the typical activity of two standard cytokinins, 6-benzylaminopurine (BAP) and 2-isopentenyladenine (2iP) in

Velvet tobacco mottle virus (VTMoV) infects the native Australian plant Nicotiana velutina, which is endemic to central Australia. This virus is included in the genus Sobemovirus based on virion morphology and serological relationships. We report here the full genome sequence of VTMoV, attained

We partially purified three Nicotiana tabacum L. embryogenic pollen-abundant phosphoproteins (NtEPa to c) which appeared in the cells undergoing a dedifferentiation process from immature pollen grains to embryogenic cells, caused by glutamine-deficiency in vitro. All the NtEPs had a highly conserved

During March of 2004 (Alachua County) and again during February of 2006 (Highlands County), specimens of the plant Passiflora incence (passionfruit) with chlorotic symptoms were submitted to the Division of Plant Industry, Gainesville, FL for diagnosis. Cytoplasmic cylindrical inclusions seen in

In September 2002, several unthrifty Verbena canadensis 'Homestead purple' plants were received at the Division of Plant Industry in Gainesville, FL. Symptoms included very subtle yellowing and distortion or stunting of the younger leaves, symptoms that could be overlooked as a nutritional problem.

We investigated the involvement of ethylene signaling in the development of the reproductive structures in tobacco ( Nicotiana tabacum L.) by studying flowers that were insensitive to ethylene. Ethylene-insensitivity was generated either by expression of the mutant etr1-1 ethylene-receptor allele

Tropical soda apple (TSA) (Solanum viarum Dunal), a plant native to South America, was first identified in Florida in 1988 (4). It rapidly became a noxious weed in pastures throughout the state and it is known to be a reservoir for Cucumber mosaic virus, Potato leafroll virus, Potato virus Y (PVY),

Petunia inflata, a species with gametophytic self-incompatibility, has previously been found to contain a large number of ribonucleases in the pistil. The best characterized of the pistil ribonucleases are the products of the S alleles, the S proteins, which are thought to be involved in

An alloplasmic male-sterile line of tobacco, containing the nucleus of Nicotiana tabacum and the cytoplasm of Nicotiana repanda, is restored to fertility by introgression of an alien chromosome fragment obtained from the cytoplasm donor. To isolate the restorer gene(s), the alien chromosome fragment

BACKGROUND The tobacco plant, Nicotiana tabacum, has been responsible for more deaths than any other herb. However, the literature has also been endowed with its use as "holy herb" since the pre-Columbian era. Used for treating pain, poisonous bites, ulcers, nasal polyps, and basal cell carcinoma;

Two saline media, differing primarily in the presence or absence of NH4 (+) but also in the concentration of sucrose, were developed for culture of tobacco (Nicotiana tabacum L.) mesophyll protoplasts. In the R0.6 medium, which does not contain NH4 (+) and only 1 g/l sucrose, protoplasts divide 2-3

The preservation of seed viability and quality in storage is an important trait both for commercial and germplasm usage. To better explore potential mechanisms of tobacco seed deterioration, seed packed in cloth bag (C) and vacuum bag (V) were stored under room temperature (RT) and low temperature