Organizing co mmittee

AMINO ACID COMPOSITION OF SPECIES OF THE
GENUS Atriplex L.
 
X.U. Khalbekova 
 
Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan 
M. Ulugbek street, 83 
 
The cultivation of halophyte plants can contribute to the creation of highly 
productive long-term pasture communities on secondary saline lands, as well as their 
effective use as medicinal raw materials, since the chemical composition of this family 
is very diverse and unique. It is represented by various amino acids, carbohydrates, 
phenolic compounds (flavonoids, isoflavones, xanthones, tannins, etc.), essential oils, 
etc.
In this regard, studies of the component composition of plants growing in the 
extreme climatic conditions of the chul are promising, for this it is necessary to 
determine the main classes of biologically active substances, one of which are amino 
acids, which are the main structural units of the human body and play a huge role in the 
biosynthesis of biologically active compounds, proteins and peptides. 
The largest number of plant cover species of saline soils in Uzbekistan belongs to the 
Chenopodiaceae
family, many of whose representatives have valuable fodder potential 
and are medicinal and they are extremely promising for use in the ecological restoration 
and increase in the productivity of degraded pastoral lands in the arid regions of the 
world.
In this regard, the choice of plants that are potentially promising species for 
study was also determined: 
Atriplex aucheri
Moq. and 
Atriplex tatarica 
L. 
(
Chenopodiaceae family
)
, growing in the conditions of the dried bottom of the Aral Sea, 
to identify the features of the intake and accumulation of amino acids by plants of the 
genus Atriplex in conditions of technogenic pollution and evaluate the possibilities of 
agricultural practices for obtaining environmentally friendly products. 
The young leaves of 
Atriplex
species are valuable sources of vitamins and are used in 
spring (instead of spinach) as green leafy vegetables. The leaves contain organic acids 
(
A. laciniata
L.), coumarins and flavonoids (
A. rosea
L.), alkaloids (
A. halimus
L.), and 
phosphatidylglycerol (
A. prostrata
Baucher ex DC.). Determination of free amino acids 
in the form of their PTC derivatives was carried out by the method of Steven A. and 
Cohen Daviel J. In the studied species of the genus 
Atriplex
, 20 free amino acids were 
identified, of which 10 are essential - threonine, arginine, tyrosine, valine, methionine, 
isoleucine, histidine, tryptophan, phenylalanine, lysine, leucine.
Both species had the highest content of free methionine. Arg, Cys, and Trp also 
dominated in 
A. aucheri
, while Pro, Phr, and Ala dominated in 
A. tatarica
. The studied 
plants of the genus 
Atriplex
are of particular interest both in scientific and ecological 
terms, which allows us to consider them as promising for introduction into culture in the 
Aralkum, and the assumption that plants have a selective ability to accumulate chemical 
elements has been experimentally confirmed. It has been established that the more 
microelements with a wide range of concentrations are combined in one plant, the 
greater the ecological amplitude of the growth of this plant and, as a result, the higher 
its adaptive capacity in conditions of technogenic pollution of new valuable drugs of 
combined action. The work was supported by grant No. AL-632204135 (Ministry of 
Innovative Development of the Republic of Uzbekistan). 

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Poster presentation 
166