Transposition of the maize autonomous element Activator in transgenic Nicotiana plumbaginifolia plants

1993 ◽  
Vol 238-238 (1-2) ◽  
pp. 209-217 ◽  
Author(s):  
Annie Marion-Poll ◽  
Elena Marin ◽  
Nathalie Bonnefoy ◽  
Véronique Pautot
2020 ◽  
Author(s):  
Ian Sims ◽  
A Bacic

The soluble polymers secreted by cell-suspension cultures of Nicotiana plumbaginifolia contained 78% carbohydrate, 6% protein and 4% inorganic material. The extracellular polysaccharides were separated into three fractions by anion-exchange chromatography using a gradient of imidazole-HCl at pH 7 and the individual polysaccharides in each fraction were then isolated by selective precipitation and enzymic treatment. Monosaccharide and linkage compositions were determined for each polysaccharide after reduction of uronic acid residues and the degree of esterification of the various uronic acid residues in each polysaccharide was determined concurrently with the linkage types. Six components were identified: an arabinoxyloglucan (comprising 34% of the total polysaccharide) and a galactoglucomannan (15%) in the unbound neutral fraction, a type II arabinogalactan (an arabinogalactan-protein, 11%) and an acidic xylan (3%) in the first bound fraction, and an arabinoglucuronomannan (11%) and a galacturonan (26%) in the second bound fraction. © 1995.


Genetics ◽  
1998 ◽  
Vol 149 (2) ◽  
pp. 479-490
Author(s):  
Frank U Hoeren ◽  
Rudy Dolferus ◽  
Yingru Wu ◽  
W James Peacock ◽  
Elizabeth S Dennis

Abstract The transcription factor AtMYB2 binds to two sequence motifs in the promoter of the Arabidopsis ADH1 gene. The binding to the GT-motif (5′-TGGTTT-3′) is essential for induction of ADH1 by low oxygen, while binding to the second motif, MBS-2, is not essential for induction. We show that AtMYB2 is induced by hypoxia with kinetics compatible with a role in the regulation of ADH1. Like ADH1, AtMYB2 has root-limited expression. When driven by a constitutive promoter, AtMYB2 is able to transactivate ADH1 expression in transient assays in both Arabidopsis and Nicotiana plumbaginifolia protoplasts, and in particle bombardment of Pisum sativum leaves. Mutation of the GT-motif abolished binding of AtMYB2 and caused loss of activity of the ADH1 promoter in both transient assays and transgenic Arabidopsis plants. These results are consistent with AtMYB2 being a key regulatory factor in the induction of the ADH1 promoter by low oxygen.


2005 ◽  
Vol 46 (5) ◽  
pp. 790-796 ◽  
Author(s):  
Aurora Piñas Fernández ◽  
Patricia Gil ◽  
Ildiko Valkai ◽  
Ferenc Nagy ◽  
Eberhard Schäfer

1990 ◽  
Vol 2 (12) ◽  
pp. 1131
Author(s):  
Carmen Castresana ◽  
Fernanda de Carvalho ◽  
Godelieve Gheysen ◽  
Marianne Habets ◽  
Dirk Inze ◽  
...  

Author(s):  
G. M. Waterhouse

Abstract A description is provided for Phytophthora nicotianae var. nicotianae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Nicotiana plumbaginifolia, N. tabaci, N. spp., and on Amaranthus sp., Commelina benghalensis, C. nudiflora, Lycopersicon esculentum, Ricinus communis, Solanum melongena; also on wound inoculated Buxus sp., Daucus carota, Hedera helix, Ipomoea batatas and Trema amboensis. DISEASE: Black shank of tobacco. GEOGRAPHICAL DISTRIBUTION: Africa (Malawi, Mauritius, Uganda); Asia (Ceylon, China, Formosa, India, Indonesia, Japan, Java, Malaya, Philippines, Sumatra); Central America & West Indies (Cuba, Jamaica, Puerto Rico, Santo Domingo, Trinidad); Europe (Bulgaria, Germany, Greece, Italy, Poland, Romania, U.S.S.R.); North America (U.S.A.); South America (Brazil, Colombia, Venezuela). TRANSMISSION: Soil-borne, persisting in soil for at least 4 years between tobacco crops, and not eliminated by a 3 year rotation or a 4 year fallow (41: 409; 39: 126). Tobacco leaves have been used to indicate disease potential in infested soil after serial dilution with sterile soil (42: 408). Spread in contaminated pond water used in overhead irrigation also suspected (43, 1413). Wind-borne spread up to 800 ft. has been recorded (39: 500).


THE BULLETIN ◽  
2021 ◽  
Vol 2 (390) ◽  
pp. 146-153
Author(s):  
L. Savchenko ◽  
S. Tovkach ◽  
A. Shilina ◽  
N. Yablonovskaya ◽  
O. Subbotina ◽  
...  

An advertising slogan is a special genre of advertising text that acts as a connecting link in the entire advertising campaign. In addition, slogans also perform a number of other functions, being the most important unit of advertising communication, they influence the recipients of information, affect their emotions and behavior. The relevance of the topic is due to the increased interest in the rapidly developing language of advertising. The article is devoted to general issues of the functioning of an advertising slogan in the structure of advertising activities, classification of slogans in advertising communication. Research methods are determined by the goals and objectives of the work. In a complex linguistic analysis, the following general scientific theoretical methods are used: the continuous sampling method, the descriptive-analytical method, the comparative-comparative method. The theoretical significance of this study lies in the expansion, deepening and systematization of theoretical information about the concept of an advertising slogan. The scientific and practical significance of the work lies in the fact that the materials of the study can be used in theoretical courses on advertising in the study of intercultural communication. Results. The totality of the typological characteristics of the slogan distinguishes it from the background of other verbal units of advertising appeal. These are laconicism and imagery of form, expressiveness, focus on dialogue with the addressee. The slogan of a product that is just entering the market must contain the brand name. This will allow the consumer to be remembered faster. Having analyzed the functions and typological characteristics of the slogan, we came to the conclusion that the slogan is a key autonomous element of the advertising message and can be used both in the context of advertising, being its component, and separately, having semantic, structural, compositional features. The slogan can act as a linguistic unit, independent of other elements of the advertising text, expressing the essence of the advertising campaign, the company's image, the dominant idea. Thus, the changes caused by extralinguistic factors inevitably lead to the creation of new advertising images, which in turn requires a qualitative transformation of the nature of the advertising text and the emergence of new advertising slogans.


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