Results 31 to 40 of about 435,455 (251)

Iron-catalyzed carboazidation of alkenes and alkynes

open access: yesNature Communications, 2019
Carboazidation of alkenes and alkynes holds the promise to construct valuable, functionalized molecules. Here, the authors report a general and efficient iron-catalyzed carboazidation of both alkenes and alkynes enabled by t-butyl perbenzoate.
Haigen Xiong   +7 more
doaj   +1 more source

Abscisic acid biosynthesis, metabolism and signaling in ripening fruit

open access: yesFrontiers in Plant Science, 2023
Fruits are highly recommended nowadays in human diets because they are rich in vitamins, minerals, fibers and other necessary nutrients. The final stage of fruit production, known as ripening, plays a crucial role in determining the fruit’s quality and ...
Wei Wu   +6 more
doaj   +1 more source

Genome-Wide Identification and Expression Analysis of 1-Aminocyclopropane-1-Carboxylate Synthase (ACS) Gene Family in Chenopodium quinoa

open access: yesPlants, 2023
Ethylene plays an important role in plant development and stress resistance. The rate-limiting enzyme in ethylene biosynthesis is 1-aminocyclopropane-1-carboxylic acid synthase (ACS). C. quinoa (Chenopodium quinoa) is an important food crop known for its
Lu Yin   +7 more
doaj   +1 more source

Biomarkers of postharvest resilience: unveiling the role of abscisic acid in table grapes during cold storage

open access: yesFrontiers in Plant Science, 2023
Table grapes are considered non-climacteric fruit, not showing a rapid increase in respiration rate and ethylene production during ripening. Previous research has suggested that abscisic acid (ABA) may have a more crucial role in grape postharvest ...
Ángela Navarro-Calderón   +3 more
doaj   +1 more source

Circadian rhythms of ethylene emission in Arabidopsis [PDF]

open access: yes, 2004
Ethylene controls multiple physiological processes in plants, including cell elongation. Consequently, ethylene synthesis is regulated by internal and external signals.
Harren, Frans J M   +24 more
core   +2 more sources

Assigning the Absolute Configurations of Chiral Primary Amines Based on Experimental and DFT-Calculated 19F Nuclear Magnetic Resonance

open access: yesFrontiers in Chemistry, 2019
In this work, a novel method for assigning the absolute configuration of a chiral primary amine has been developed based on the experimental and DFT-calculated 19F NMR chemical shift differences of its derived two fluorinated amides by reacting with two ...
Shiwei Yang   +6 more
doaj   +1 more source

Ethylene supports colonization of plant roots by the mutualistic fungus Piriformospora indica [PDF]

open access: yes, 2012
The mutualistic basidiomycete Piriformospora indica colonizes roots of mono- and dicotyledonous plants, and thereby improves plant health and yield. Given the capability of P.
Jörg Durner   +39 more
core   +2 more sources

The use of ethylene-suppressed lines to assess differential sensitivity to ethylene of the various ripening pathways in Cantaloupe melons. [PDF]

open access: yes, 2001
Physiological characterization of ethylene-suppressed Cantaloupe Charentais melons (Cucumis melo var. cantalupensis Naud cv. Védrantais) revealed that some ripening-associated events, like degreening of the rind and cell separation in the peduncular ...
F. Romojaro   +12 more
core   +1 more source

Research on the optimization of the blending modification process for polypropylene (PP)/polyethylene (PE) and petroleum resin

open access: yesAcademia Materials Science
Herein, hydrogenated C5/C9 petroleum resins, polypropylene (PP), and polyethylene (PE) served as the raw materials. A petroleum resin/PP/PE blend material was prepared through blending modification.
Xin-mou Kuang   +10 more
doaj   +1 more source

Copper(I)-catalyzed tandem reaction: synthesis of 1,4-disubstituted 1,2,3-triazoles from alkyl diacyl peroxides, azidotrimethylsilane, and alkynes

open access: yesBeilstein Journal of Organic Chemistry, 2018
A copper-catalyzed azide–alkyne cycloaddition (CuAAC) reaction for the synthesis of 1,4-disubstituted 1,2,3-triazoles from alkyl diacyl peroxides, azidotrimethylsilane, and terminal alkynes is reported.
Muhammad Israr   +4 more
doaj   +1 more source

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