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Chitinase, beta-1,3-glucanase, osmotin, and extensin are expressed in tobacco explants during flower formation.
Sequence analysis of five gene families that were isolated from tobacco thin cell layer explants initiating floral development [Meeks-Wagner et al. (1989). Plant Cell 1, 25-35] showed that two encode… Expand
Modifications of Mitochondrial DNA Cause Changes in Floral Development in Homeotic-like Mutants of Tobacco.
To investigate the influence of mitochondrial genes on stamen development of higher plants, protoplasts from three different, male-sterile tobacco cultivars were fused. The fused cells were cultured… Expand
THE ROOT ENDODERMIS: FINE STRUCTURE AND FUNCTION
- H. Bonnett
- Biology, Medicine
- The Journal of cell biology
- 1 April 1968
The topology of the root endodermis, a tissue surrounded by peripherally located parenchyma cells and central conducting cells, suggests that it has a regulatory role in radial movement of water,… Expand
Characterization of a virescent chloroplast mutant of tobacco.
Virescent mutations produce plants in which young leaves have reduced chlorophyll levels but accumulate nearly normal amounts of chlorophyll as they age; they are predominantly nuclear mutations. We… Expand
Mitochondrial involvement in petal and stamen development studied by sexual and somatic hybridization of Nicotiana species
Abstract The interspecific origin, frequency of occurrence, and variation in phenotype of cytoplasmic male-sterile cultivars of Nicotiana tabacum are reviewed in order to provide a framework for… Expand
NITROGEN FIXATION BY MEMBERS OF THE STICTACEAE (LICHENES) OF NEW ZEALAND
SUMMARY Forty-four species of New Zealand lichens, including 22 species of Pseudocyphellaria and seven of Sticta, were assayed for nitrogenase activity by acetylene reduction. Nitiogen fixation was… Expand
Auxin transport in Convolvulus roots cultured in vitro.
The Phenotype of a Virescent Chloroplast Mutation in Tobacco Is Associated with the Absence of a 37.5 kD Thylakoid Polypeptide.
The Vir-c mutation is a virescent chloroplast mutation found in a line of plants derived from protoplast fusions between a Nicotina tabacum line and a line containing N. tabacum nuclei with Nicotiana… Expand
POLYRIBOSOMES AND CISTERNAL ACCUMULATIONS IN ROOT CELLS OF RADISH
The zone of root hair formation of seedling radish roots, Raphanus sativus L., was studied by phase-contrast and electron microscopy. Localized dilations of the endoplasmic reticulum, which contained… Expand
SPECIFICITY IN THE GUNNERA‐NOSTOC ENDOSYMBIOSIS
Summary The cyanobacterium, Nostoc, and the angiosperm, Gunnera, form a symbiotic association in which glandular cells host an intracellular population of heterocystous Nostoc cells. Symbiotic and… Expand