Structures and Biosyntheses of Phytotoxins in Cochliobolus Spicifer and Bipolaris Sorokiniana: C3 Unit Addition Reaction in Phytotoxin Biosyntheses

Cupin superfamily proteins (TM1459) work as a macromolecular ligand framework with a double-stranded beta-barrel structure ligating to a Cu ion through histidine side chains. Variegating the first coordination sphere of TM1459 revealed that H52A and H54A/H58A mutants effectively catalyzed the diastereo- and enantio-selective Michael addition reaction of nitroalkanes to an α,β-unsaturated ketone. Moreover, in silico substrate docking signified C106N and F104W single-point mutations, which inverted the diastereoselectivity of H52A and further improved the stereoselectivity of H54A/H58A, respectively.

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МИКРОМИЦЕТЫ ALTERNARIA SPP. И BIPOLARIS SOROKINIANA И МИКОТОКСИНЫ В ЗЕРНЕ, ВЫРАЩЕННОМ В УРАЛЬСКОМ ФЕДЕРАЛЬНОМ ОКРУГЕ

Микология и фитопатология ◽

10.31857/s0026364820050086 ◽

2020 ◽

Vol 54 (5) ◽

pp. 365-377

Author(s):

А. С. Орина ◽

О. П. Гаврилова ◽

Т. Ю. Гагкаева ◽

Ф. Б. Ганнибал

Keyword(s):

Bipolaris Sorokiniana

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Functional state of plasmalemma and apoplast in barley mesophyll under conditions of hyperthermia and Bipolaris sorokiniana infection

Vìsnik Harkìvsʹkogo nacìonalʹnogo agrarnogo unìversitetu. Serìâ Bìologiâ ◽

10.35550/vbio2020.02.070 ◽

2020 ◽

Vol 2020 (2) ◽

pp. 70-82

Author(s):

L. V. Pashkevich ◽

◽

L. F. Kabashnikova ◽

G. E. Savchenko ◽

◽

...

Keyword(s):

Functional State ◽

Bipolaris Sorokiniana

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Development and Characterization of SN1 Transgenic Wheat Plants with Enhanced Resistance to Rhizoctonia cerealis and Bipolaris sorokiniana

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2012.00773 ◽

2013 ◽

Vol 38 (5) ◽

pp. 773-779 ◽

Cited By ~ 3

Author(s):

Jin-Feng WANG ◽

Li-Pu DU ◽

Zhao LI ◽

Su-Ping HUANG ◽

Xing-Guo YE ◽

...

Keyword(s):

Bipolaris Sorokiniana ◽

Transgenic Wheat ◽

Enhanced Resistance ◽

Rhizoctonia Cerealis

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Metal Doped-C3N4/Fe2O4: Efficient and Versatile Heterogenous Catalysts for Organic Transformations

Current Organic Chemistry ◽

10.2174/1385272823666190709113758 ◽

2019 ◽

Vol 23 (12) ◽

pp. 1284-1306

Author(s):

Vijai K. Rai ◽

Fooleswar Verma ◽

Suhasini Mahata ◽

Smita R. Bhardiya ◽

Manorama Singh ◽

...

Keyword(s):

Ring Opening ◽

Carbon Nitride ◽

Addition Reaction ◽

High Surface ◽

Graphitic Carbon ◽

Graphitic Carbon Nitride ◽

Organic Transformations ◽

Reduction Reactions ◽

Activation Reaction ◽

Metal Doped

The polymeric graphitic carbon nitride (g-C3N4) has been one of the interesting earth abundant elements. Though g-C3N4 finds application as a photocatalyst, its photocatalytic behaviour is limited because of low efficiency, mainly due to rapid charge recombination. To overcome this problem, several strategies have been developed including doping of metal/non-metal in the cavity of g-C3N4. Moreover, the CoFe2O4 NPs have been used in many organic transformations because of its high surface area and easy separation due to its magnetic nature. This review describes the role of cobalt ferrite as magnetic nanoparticles and metal-doped carbon nitride as efficient heterogeneous catalysts for new carbon-carbon and carbon-hetero atom bond formation followed by heterocyclization. Reactions which involved new catalysts for selective activation of readily available substrates has been reported herein. Since nanoparticles enhance the reactivity of catalyst due to higher catalytic area, they have been employed in various reactions such as addition reaction, C-H activation reaction, coupling reaction, cyclo-addition reaction, multi-component reaction, ring-opening reaction, oxidation reaction and reduction reactions etc. The driving force for choosing this topic is based-on huge number of good publications including different types of spinels/metal doped-/graphitic carbon nitride reported in the literature and due to interest of synthetic community in recent years. This review certainly will represent the present status in organic transformation and for exploring further their catalytic efficiency to new organic transformations involving C-H activation reaction through coupling, cyclo-addition, multi-component, ring-opening, oxidation and reduction reactions.

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Влияние бактерий рода Pseudomonas на активность пероксидазы в растениях пшеницы при инфицировании Bipolaris sorokiniana

Физиология растений ◽

10.1134/s0015330318050214 ◽

2018 ◽

Vol 65 (5) ◽

pp. 366-375

Author(s):

О. М. Минаева ◽

Е. Е. Акимова ◽

Н. Н. Терещенко ◽

Т. И. Зюбанова ◽

М. В. Апенышева ◽

...

Keyword(s):

Bipolaris Sorokiniana

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New type of addition to 5-substituted 4-arylidene-2-(4,5-dihydrofurfurylidene)-N,N-dimethyliminium bisperchlorates. Preparation of 4-substituted 5-(N,N-dimethylamino)-2-furancarbaldehydes

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19860573 ◽

1986 ◽

Vol 51 (3) ◽

pp. 573-580 ◽

Cited By ~ 3

Author(s):

Tibor Gracza ◽

Zdeněk Arnold ◽

Jaroslav Kováč

Keyword(s):

Nmr Spectra ◽

Addition Reaction ◽

H Nmr ◽

Organic Bases ◽

New Type

4-Arilidene-5-(N,N-dimethyliminium)-2-(4,5-dihydrofurfurylidene)-N,N-dimethyliminium bisperchlorate I undergoes a 1,4-addition reaction with organic bases under re-formation of the furan nucleus; this behaviour has been utilized in the preparation of new 4-substituted 5-(N,N-dimethylamino)-2-furancarbaldehydes II, III. The structure of the prepared compounds has been confirmed by 13C and 1H NMR spectra.

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