scholarly journals Changes in the taxonomic structure of the microbiome of chernozem southern of the rhizosphere Triticum aestivum L. under the influence of associative bacteria strains

2020 ◽  
Author(s):  
T. Melnichuk ◽  
A. Egovtseva ◽  
S. Abdurashitov ◽  
E. Andronov ◽  
E. Abdurashitova ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L ◽  
Taxonomic Structure ◽  
Associative Bacteria ◽  
A Minor

The influence of strains associated with Triticum aestivum L. has been established on the taxonomic structure of the rhizosphere of the southern сhernozem of Crimean Steppe. Seventeen dominant families and 126 families with a minor share are defined in the prokaryotic biome.

Cytogenetic studies of progenies from crosses between 'Centurk' wheat and its doubled haploids derived from anther culture

Genome ◽  
1989 ◽  
Vol 32 (4) ◽  
pp. 622-628 ◽  
Author(s):  
Sawsan S. Youssef ◽  
R. Morris ◽  
P. S. Baenziger ◽  
C. M. Papa
Keyword(s):  
Triticum Aestivum ◽  
Chromosome Pairing ◽  
Doubled Haploid ◽  
Structural Changes ◽  
Meiotic Chromosome ◽  
Doubled Haploids ◽  
Triticum Aestivum L ◽  
Root Tips ◽  
Doubled Haploid Lines ◽  
A Minor

Karyotype stability, which is essential when using wheat (Triticum aestivum L.) doubled haploids in a breeding program, was evaluated in 14 anther-derived doubled-haploid lines after at least three generations of selfing, by crossing them as females with the parent cultivar 'Centurk' and doing cytological studies on the progenies. There were no deviations from the hexaploid chromosome number (2n = 42) in root tips. Meiotic chromosome pairing was as stable as that in the control ('Centurk' × 'Centurk') in most progenies. Chromosomal structural changes and (or) behavioral deviations were detected at the metaphase I, anaphase I, telophase I, and quartet stages of meiosis in a minor proportion of the cells. The frequencies of multivalents, lagging bivalents and univalents, bridges, and micronuclei were higher in some progenies than in the control. Chromosomal fragments were infrequent. The ranges in percentages of normal cells were 72.4–90.0 at anaphase I, 76.4–92.6 at telophase I, and 82.6–93.2 at quartet stages in the doubled-haploid progenies, compared with 95–100, 92–100, and 94–96, respectively, in the control. On the basis of these results, the doubled-haploid lines should produce enough normal gametes to provide adequate seed supplies when they are used as parents in wheat cultivar and population improvement.Key words: Triticum aestivum, chromosome pairing, chromosome aberrations, gametoclonal variation.

scholarly journals INFLUENCE OF STRAINS ASSOCIATED WITH TRITICUM AESTIVUM L. ON MICROBIOCENOSIS IN THE RHIZOSPHERE OF WINTER WHEAT OF CHERNOZEM SOUTHERN

2020 ◽  
Vol 4 (24) ◽  
pp. 49-61
Author(s):  
A. Yu. Egovtseva ◽  
◽  
T.N. Melnichuk ◽  
S.F. Abdurashitov ◽  
E.E. Andronov ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Wheat Variety ◽  
Active Phase ◽  
Triticum Aestivum L ◽  
Bacterial Strains ◽  
Yield Increase ◽  
Associative Bacteria ◽  
Number Of Microorganisms ◽  
Mineralization Processes

Pre-sowing inoculation with strains of associative bacteria is one of the promising methods for increasing the productivity of agricultural crops. These microorganisms are able to stimulate the growth processes of plants, improve their mineral nutrition, increase phytoimmunity and resistance to adverse factors. The aim of the research is to study the influence of strains with a high associative potential to Triticum aestivum L. on the microbiocenosis in the rhizosphere of soft wheat of several varieties grown on chernozem southern. The studies were carried out in 2018–2020 using three varieties – ‘Ermak’, ‘Bagheera’, ‘Lydia’. The experiments were laid on plots (accounting area – 25 m2) in systematic design, replicated four times. The climate of the study area is characterized as arid (steppe). Inoculation was carried out before wheat seeds sowing; option without treatment served as a control. Sampling was carried out in the most active phase – flowering (in May 2019 and 2020). In the course of the research, we found that changes in the number of microorganisms of various ecological-trophic groups of chernozem southern in the rhizosphere of wheat occur under the influence of bacterial strains associative to T. aestivum. Wheat variety ‘Bagheera’ was found to be the most responsive to seed bacterization; the average yield increase over two years of research was in the range of 0.2-0.4 t/ha or 5-10%. Calculation of coefficients and indices indicating the direction of mineralization processes in the soil made it possible to establish that inoculation promotes their activation. The results of the correlation analysis based on two-year data obtained after studying three varieties of winter wheat showed that the number of bacteria of the genus Azotobacter has the greatest influence on the yield – the correlation index is 0.81 at p <0.05.

scholarly journals The influence of farming systems and microbial preparations on the structure of the microbocenosis of the rhizosphere of Triticum aestivum L.

2020 ◽  
Author(s):  
A. Yu. Egovtseva ◽  
T. N. Melnichuk ◽  
S. F. Abdurashitov
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Farming Systems ◽  
Farming System ◽  
Triticum Aestivum L ◽  
Taxonomic Structure ◽  
Traditional Farming ◽  
Wheat Rhizosphere ◽  
Rhizosphere Microbiome ◽  
No Till

The use of microbial preparations contributed to a change in the taxonomic structure of winter wheat rhizosphere microbiome was established. A more significant effect of microbial preparations was noted under no-till technology on the structure of the microbiome than with the traditional farming system.

MONOSOMIC ANALYSIS OF FERTILITY RESTORATION IN THREE RESTORER LINES OF WHEAT

1969 ◽  
Vol 11 (3) ◽  
pp. 531-546 ◽  
Author(s):  
Fu-Sun Yen ◽  
L. E. Evans ◽  
E. N. Larter
Keyword(s):  
Triticum Aestivum ◽  
Fertility Restoration ◽  
Major Gene ◽  
Triticum Aestivum L ◽  
Restorer Line ◽  
Monosomic Analysis ◽  
Minor Gene ◽  
Triticum Timopheevi ◽  
Aegilops Squarrosa ◽  
A Minor

Genes conferring fertility restoration, in each of the following three hexaploid restorer lines of common wheat (Triticum aestivum L) carrying cytoplasm of Triticum timopheevi Zhuk, were located using monosomic analyses: [(T. timopheevi × Aegilops squarrosa) × Canthatch3] F7, [(T. timopheevi × Ae. squarrosa) × Dirk3] F6 and (T. timopheevi × Ae. squarrosa) × Karn3] F6.Testcross data revealed that in the Dirk restorer, a major gene (Rf1) conferring fertility restoration was carried on chromosome 1A, while a minor gene (Rf4) was located on chromosome 7D. The restorer line of Canthatch was found to carry a major gene (Rf2) and a minor gene (Rf3) on chromosomes 6B ad 6D respectively. Chromosomes 1A and 6B were found to carry genes for fertility restoration in the Karn restorer. Critical chromosomes carrying genes conferring fertility restoration in each of the three restorer lines were found not to be involved in translocations found in F1 plants of Rescue monosomics × restorer lines. Chromosomes 2A, 6A and 3D of Rescue appeared to carry genes which modified the degree of restoration obtained.

ELECTRON PROBE ANALYSIS OF SAP EXUDATES OF TWO VARIETIES OF WHEAT (TRITICUM AESTIVUM L.)

1984 ◽  
Vol 45 (C2) ◽  
pp. C2-515-C2-518
Author(s):  
S. Gartner ◽  
N. Roinel ◽  
N. Paris-Pireyre
Keyword(s):  
Triticum Aestivum ◽  
Electron Probe ◽  
Triticum Aestivum L ◽  
Electron Probe Analysis ◽  
Probe Analysis

LA SILICE CHEZ LE BLÉ (TRITICUM AESTIVUM L.). COMPARAISON ENTRE UNE VARIÉTÉ SENSIBLE ET UNE VARIÉTÉ RÉSISTANTE À LA VERSE

1984 ◽  
Vol 45 (C2) ◽  
pp. C2-511-C2-514 ◽  
Author(s):  
S. Gartner ◽  
N. Paris-Pireyre
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L

Antiproliferative and apoptotic effects of wheatgrass (Triticum aestivum L.) extracts on chronic myeloid leukemia (CML) cell line

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
A Karadag ◽  
T Ozkan ◽  
B Altınok ◽  
S Aydos ◽  
A Sunguroglu
Keyword(s):  
Triticum Aestivum ◽  
Chronic Myeloid Leukemia ◽  
Cell Line ◽  
Myeloid Leukemia ◽  
Triticum Aestivum L ◽  
Apoptotic Effects

ИЗОФЕРМЕНТНЫЙ АНАЛИЗ ЭСТЕРАЗ В ЗРЕЛЫХ СЕМЕНАХ ГЕКСАПЛОИДНОЙ МЯГКОЙ ПШЕНИЦЫ (Triticum aestivum L.)

2016 ◽  
Vol 51 (3) ◽  
pp. 327-334
Author(s):  
А.С. РУДАКОВА ◽  
◽  
С.В. РУДАКОВ ◽  
Н.В. ДАВЫДОВА ◽  
Г.В. МИРСКАЯ ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L

MORPHOPHYSIOLOGICAL FEATURES OF WHEAT (Triticum aestivum L.) SEEDLINGS UPON EXPOSURE TO NICKEL NANOPARTICLES

2018 ◽  
Vol 53 (3) ◽  
pp. 578-586 ◽  
Author(s):  
P.N. Tsygvintsev ◽  
◽  
L.I. Goncharova ◽  
K.V. Manin ◽  
V.M. Rachkova ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Nickel Nanoparticles ◽  
Triticum Aestivum L
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