scholarly journals Changes in peroxidase and polypeptide profiles in Nicotiana tabacum L. transformed with Agrobacterium rhizogenes

1995 ◽  
Vol 25 (2) ◽  
pp. 229-232
Author(s):  
Sergio Echeverrigaray
Keyword(s):  
Nicotiana Tabacum ◽  
Agrobacterium Rhizogenes ◽  
Biochemical Analysis ◽  
Electrophoretic Analysis ◽  
Plant Genome ◽  
Abnormal Development ◽  
Nicotiana Tabacum L ◽  
Sds Page ◽  
Auxin Concentration ◽  
High Auxin

Morphological and proteic modifications in Nicotiana tabacum L. transformed by Agrobacterium rhizogenes were evaluated by the comparison of normal and transformant plants regenerated from hairy-roots formed by the strains A4 or IB-642 of A. rhizogenes. Changes in apical dominance were observed in IB-642 transformants, which exhibited an abnormal development of axiliary buds. The electrophoretic analysis indicated an increase in peroxidase activity and the induction of several isozymes of this complex in the transformants. The SDS-PAGE patterns comparison allows to identify several changes, specially, the increase in 31-33 and 54 kD polypeptides in the transformants.. Biochemical analysis suggests the induction of a pathogen or stress like response of the transformants due to the high auxin concentration codified by A. rhizogenes T-DNA incorporated to the plant genome.

Knockdown of NtMed8, a Med8-like gene, causes abnormal development of vegetative and floral organs in tobacco (Nicotiana tabacum L.)

2011 ◽  
Vol 30 (11) ◽  
pp. 2117-2129 ◽  
Author(s):  
Fengqing Wang ◽  
He Wei ◽  
Zhijun Tong ◽  
Xiaobo Zhang ◽  
Zemao Yang ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Abnormal Development ◽  
Floral Organs ◽  
Nicotiana Tabacum L

Tobacco Chemistry/Chemische Zusammensetzung des Tabaks

1976 ◽  
Vol 8 (6) ◽  
Author(s):  
Arne J. Aasen ◽  
Sven-Olof Almquist ◽  
Curt R. Enzell
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L

Abstract35: two isomeric 5,6-Epoxy-3-hydroxy-7-megastigmen-9-ones from Nicotiana tabacum L.

Inheritance of the Conversion of Nicotine to Nornicotine in Varieties of Nicotiana tabacum L. and Related Amphiploids 1

Crop Science ◽  
1964 ◽  
Vol 4 (4) ◽  
pp. 349-353 ◽  
Author(s):  
T. J. Mann ◽  
J. A. Weybrew ◽  
D. F. Matzinger ◽  
J. L. Hall
Keyword(s):  
Nicotiana Tabacum ◽  
Nicotiana Tabacum L

scholarly journals QTL analysis of seed germination traits in tobacco (Nicotiana tabacum L.)

2021 ◽  
Author(s):  
Monika Agacka-Mołdoch ◽  
Mian Abdur Rehman Arif ◽  
Ulrike Lohwasser ◽  
Teresa Doroszewska ◽  
Ramsey S. Lewis ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Seed Germination ◽  
Doubled Haploid ◽  
Mapping Population ◽  
Area Under The Curve ◽  
Linkage Groups ◽  
Polygenic Control ◽  
Nicotiana Tabacum L ◽  
Controlled Deterioration ◽  
Germination Traits

AbstractGenetic mapping of seed germination traits has been performed with many plant species. In tobacco, however, investigations are rare. In the present study, a bi-parental mapping population consisting of 118 doubled haploid lines and derived from a cross between ‘Beinhart-1000’ and ‘Hicks’ was investigated. Four germination-related traits, total germination (TG), normal germination (NG), time to reach 50% of total germination (T50), and the area under the curve after 200 h of germination (AUC) were considered by examining seeds either untreated or after a moderate controlled deterioration (CD). Quantitative trait loci were found for all traits distributed on 11 out of the 24 linkage groups. It was demonstrated that, as in many other species, germination-related traits are very complex and under polygenic control.

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