scholarly journals EFFECT OF COMPLEXONS, DERIVATIVES OF SUCCINIC ACID, ON THE FORMATION OF CAROTENOIDS IN GREEN PLANTS

Author(s):  
Татьяна Ивановна Смирнова ◽  
Ирина Геннадьевна Тумасьева ◽  
Людмила Николаевна Толкачева ◽  
Виктор Михайлович Никольский

На основании обобщения результатов многолетних лабораторных и полевых опытов обнаружена зависимость уровня содержания жёлтых фотосинтетических пигментов в растениях от внекорневой обработки растворами комплексонов. Комплексоны, производные янтарной кислоты (иминодиянтарная кислота, этилендиаминдиянтарная кислота, диаминоциклогександиянтарная кислота) способствуют накоплению каротиноидов в зелёных растениях, а этилендиаминтетрауксусная кислота существенно не влияет на их содержание. Based on the generalization of the results of many years of laboratory and field experiments, the dependence of the content of yellow photosynthetic pigments in plants on foliar treatment with solutions of complexones was found. Complexones, derivatives of succinic acid (iminodisuccinic acid, ethylenediaminedisuccinic acid, diaminocyclohexanedisuccinic acid) contribute to the accumulation of carotenoids in green plants, and ethylenediaminetetraacetic acid does not significantly affect their content.

2021 ◽  
Vol 25 (6) ◽  
pp. 49-53
Author(s):  
T.I. Smirnova ◽  
I.A. Drozdov ◽  
M.N. Pavlov

The results of the study of the possibility of degradation of complexones, derivatives of succinic acid (CDSA), iminodisuccinic acid (IDSA), ethylenediaminedisuccinic acid (EDCSA), trans-1, 2-diaminocyclohexanedisuccinic acid (DCHDSA) and complexones taken for comparison, derivatives of iminodiacetic acid (IDSA) and ethylenediaminetetraacetic acid (EDTAA) under the influence of microbiological preparations “Baikal EM-1” and “Rhizoplane L”, as well as borate complexes of CDSA: B-IDSA, B-EDCSA and B-DCHDSA under the influence of the preparation Rhizoplane L at a temperature 22±1oC in an aqueous medium. It was found that within 4.5 months of the compounds taken for research under the action of Rhizoplane L preparation, B-IDSA was degraded to greatest extent (by 88%), and under the action of Baikal EM-1 preparation more than other degraded CDSA (by 86%) and EDTAA. Simultaneous destruction of DCHDSA and B-DCHDSA when exposed to the preparation taken for the experiment was not noted.


2021 ◽  
Vol 22 (4) ◽  
pp. 1847
Author(s):  
Kristina Vlahoviček-Kahlina ◽  
Slaven Jurić ◽  
Marijan Marijan ◽  
Botagoz Mutaliyeva ◽  
Svetlana V. Khalus ◽  
...  

Novel plant growth regulators (PGRs) based on the derivatives of dehydroamino acids 2,3-dehydroaspartic acid dimethyl ester (PGR1), Z-isomer of the potassium salt of 2-amino-3-methoxycarbonylacrylic acid (PGR2) and 1-methyl-3-methylamino-maleimide (PGR3) have been synthesized and their growth-regulating properties investigated. Laboratory testing revealed their plant growth-regulating activity. PGR1 showing the most stimulating activity on all laboratory tested cultures were used in field experiments. Results showed that PGR1 is a highly effective environmentally friendly plant growth regulator with effects on different crops. Biopolymeric microcapsule formulations (chitosan/alginate microcapsule loaded with PGR) suitable for application in agriculture were prepared and characterized. Physicochemical properties and release profiles of PGRs from microcapsule formulations depend on the molecular interactions between microcapsule constituents including mainly electrostatic interactions and hydrogen bonds. The differences in the microcapsule formulations structure did not affect the mechanism of PGRs release which was identified as diffusion through microcapsules. The obtained results opened a perspective for the future use of microcapsule formulations as new promising agroformulations with a sustained and target release for plant growth regulation.


1897 ◽  
Vol 21 ◽  
pp. 156-159
Author(s):  
Crum Brown ◽  
R. Fairbairn

Sodium mercaptide and dibromosuccinic ether, in the proportion of two molecules of the former to one of the latter, were dissolved separately in absolute alcohol, and slowly mixed. A considerable evolution of heat took place, while sodium bromide separated out. The flask was then digested for some hours on the steam-bath. The alcohol was subsequently distilled off, and the residue, on cooling, was treated with water. An oil separated out. This oil was collected by means of a separating funnel, and the aqueous layer several times extracted with ether. The oil and the ethereal extracts were added together and dried over calcium chloride. Next morning the ether was distilled off at the ordinary pressure. The remainder was distilled in vacuo. Between 50° and 60° a few drops came over, which proved to be ethyldisulphide.The remainder came over between 150° and 170°.This latter fraction was redistilled, and a portion of it used for analysis. The boiling point at 20 mm. pressure was 160°.Combustion of dietthiosuccinic ether.Weight of substance taken = ·2477 gram.Weight of carbonic acid obtained = ·4476 gram.Weight of water obtained = ·1702 gram.


Biomolecules ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 175 ◽  
Author(s):  
Ying He ◽  
Yuan Jia ◽  
Fachuang Lu

Various ferulic acid (FA) dimers occurring in plant cell walls, such as 8-5-, 8-O-4-, 5-5-, and 8-8-coupled dimers, are effective antioxidants and potential antimicrobials. It is necessary to access these diferulates as reference compounds to validate those isolated from plants. 3,6-bis(4-hydroxy-3-methoxyphenyl)-tetrahydrofuro-[3,4-c]furan-1,4-dione, a 8-8-coupled FA dilactone generated from ferulic acid via radical coupling, has been used to synthesize 8-8-coupled FA dimers although few reports investigated the distribution of products and mechanisms involved in the transformation of FA dilactone. In this work, the FA dilactone, obtained from FA by a peroxidase-catalyzed radical coupling, was reacted under various base/acid conditions. Effects of reaction conditions and workup procedures on the distribution of products were investigated by GC-MS. The isolated products from such treatments of FA dilactone were characterized by NMR. New derivatives of FA dimer including 2-(4-hydroxy-3-methoxybenzylidene)-3-(hydroxyl-(4-hydroxy-3-methoxyphenyl)methyl)succinic acid and 2-(bis(4-hydroxy-3-methoxyphenyl)-methyl)-succinic acid were produced from NaOH treatment. Another novel 8-8-coupled cyclic FA dimer, diethyl 6-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1,2-dihydronaphthalene-2,3-dicarboxylate was identified in products from FA dilactone treated by dry HCl in absolute ethanol. Mechanisms involved in such transformations were proposed.


1977 ◽  
Vol 8 (28) ◽  
pp. no-no
Author(s):  
J. LANGE ◽  
S. RUMP ◽  
E. GALECKA ◽  
L. ILCZUK ◽  
M. LECHOWSKA-POSTEK ◽  
...  

2017 ◽  
Vol 12 (3) ◽  
pp. 1934578X1701200
Author(s):  
Qi Luo ◽  
Yan-Jiao Zhang ◽  
Zhi-Qiang Shen ◽  
Peng Chen ◽  
Yong-Xian Cheng

Ganoderma applanatum is a fungus used for the prevention and treatment of a variety of disorders in China. In the present study, four new compounds, named shushe acids A-D (1-4), were isolated from the fruiting bodies of this species. Their structures were identified on the basis of spectroscopic methods. Compounds 1-4 are all natural product hybrids composed of derivatives of gallic acid, glycerol and succinic acid. None of the four compounds showed activity against the MCF-7 cell line.


ChemInform ◽  
2010 ◽  
Vol 28 (1) ◽  
pp. no-no
Author(s):  
S. L. BORZA ◽  
A. A. MALIENKO ◽  
T. A. ZARITOVSKAYA ◽  
M. YU. ZUBRITSKII ◽  
S. YU. SUIKOV ◽  
...  

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