Genome-Wide and Transcriptome Analysis of Autophagy-Related ATG Gene Family and Their Response to Low-Nitrogen Stress in Sugar Beet.

Sugar beet ( L.) is a significant global crop for sugar production, with nitrogen playing a crucial role in its growth, development, and sugar yield. Autophagy facilitates nutrient reabsorption and recycling under nutrient stress by degrading intracellular components, thereby enhancing plant nitrogen use efficiency.

Transcriptional Profiling Analysis Providing Insights into the Harsh Environments Tolerance Mechanisms of .

, an endemic shrub in China, thrives in desertification-prone environments due to its robust biomass, hairy leaves, and extensive root system. It is vital for ecological restoration and serves as a valuable forage plant. This study explored the molecular mechanisms underlying ' adaptation to desert conditions, focusing on its physiological, biochemical, and transcriptomic responses to drought, salt, and alkali stresses.

RtNAC055 promotes drought tolerance via a stomatal closure pathway linked to methyl jasmonate/hydrogen peroxide signaling in .

The stomata regulate CO uptake and efficient water usage, thereby promoting drought stress tolerance. NAC proteins (NAM, ATAF1/2, and CUC2) participate in plant reactions following drought stress, but the molecular mechanisms underlying NAC-mediated regulation of stomatal movement are unclear. In this study, a novel NAC gene from , , was found to enhance drought tolerance via a stomatal closure pathway.

Concise Enantioselective Total Synthesis of Daphenylline Enabled by an Intramolecular Oxidative Dearomatization.

Daphenylline is a structurally unique member of the triterpenoid natural alkaloids, which exhibit intriguing biological activities. Six total syntheses have been reported, five of which utilize aromatization approaches. Herein, we report a concise protecting-group-free total synthesis by means of a novel intramolecular oxidative dearomatization reaction, which concurrently generates the critical seven-membered ring and the quaternary-containing vicinal stereocenters.

RtNAC100 involved in the regulation of ROS, Na accumulation and induced salt-related PCD through MeJA signal pathways in recretohalophyte Reaumuria trigyna.

NAM, ATAF1/2, and CUC2 (NAC) proteins regulate plant responses to salt stress. However, the molecular mechanisms by which NAC proteins regulate salt-induced programmed cell death (PCD) are unclear. We identified 56 NAC genes, 35 of which had complete open reading frames with complete NAM domain, in the R.

Glutaredoxin like protein (RtGRL1) regulates HO and Na accumulation by maintaining the glutathione pool during abiotic stress.

Reaumuria trigyna, an endangered recretohalophyte, is a small archaic wild shrub endemic to arid and semiarid plateau regions of Inner Mongolia, China. Based on salt-related transcriptomic data, we isolated a GRX family gene, glutaredoxin like protein (RtGRL1), from R. trigyna that is associated with the removal of active oxygen and regulation of redox status.

Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.

Jasmonates (JAs) play a key role in the regulation of growth and the defense response to environmental stresses. JAs inhibit plant growth and promote defense response. However, their roles in desert halophyte in the response to salt stress remain poorly understood.

Optically Active Flavaglines-Inspired Molecules by a Palladium-Catalyzed Decarboxylative Dearomative Asymmetric Allylic Alkylation.

With the aid of a class of newly discovered Trost-type bisphosphine ligands bearing a chiral cycloalkane framework, the Pd-catalyzed decarboxylative dearomative asymmetric allylic alkylation (AAA) of benzofurans was achieved with high efficiency [0.2-1.0 mol% Pd(dba)/], good generality, and high enantioselectivity (>30 examples, 82-99% yield and 90-96% ee).

Reaumuria trigyna transcription factor RtWRKY23 enhances salt stress tolerance and delays flowering in plants.

Reaumuria trigyna (Reaumuria Linn genus, family Tamaricaceae), an endangered dicotyledonous shrub with the features of a recretohalophyte, is endemic to the Eastern Alxa-Western Ordos area of China. Based on R. trigyna transcriptome data and expression pattern analysis of RtWRKYs, RtWRKY23, a Group II WRKY transcription factor, was isolated from R.

Total Synthesis of an Atropisomer of the Schisandra Triterpenoid Schiglautone A.

A diastereoselective approach for the total synthesis of an unusual atropisomer of the Schisandra triterpenoid (±)-schiglautone A is described. The efficient synthetic strategy features three key transformations: 1) two sequential titanium(III)-catalyzed radical cyclization/homologation reactions to construct the trans-fused [6,7] bicycle as well as install the quaternary carbons at C10 and C14 with the desired stereochemistry; 2) a Claisen rearrangement followed by a ring-closing metathesis to forge the strained nine-membered ring; and 3) a substrate-controlled Michael addition to enable the introduction of the C17 side-chain with good diastereoselectivity.

Functional Analysis of Ion Transport Properties and Salt Tolerance Mechanisms of RtHKT1 from the Recretohalophyte Reaumuria trigyna.

Reaumuria trigyna is an endangered recretohalophyte and a small archaic feral shrub that is endemic to arid and semi-arid plateau regions of Inner Mongolia, China. Based on transcriptomic data, we isolated a high-affinity potassium transporter gene (RtHKT1) from R. trigyna, which encoded a plasma membrane-localized protein.

Diastereoselective Synthesis of the Hydroperoxide-Keto Form of (±)-Steenkrotin B.

A diastereoselective approach for the synthesis of the hydroperoxide-keto form of (±)-steenkrotin B (2') is described. The key features of the strategy involve a Diels-Alder cycloaddition, a titanium(III)-catalyzed reductive annulation, and a regio- and diastereoselective hydroperoxidation.

Expression of a Na/H antiporter RtNHX1 from a recretohalophyte Reaumuria trigyna improved salt tolerance of transgenic Arabidopsis thaliana.

Reaumuria trigyna is an endangered recretohalophyte and a small xeric shrub that is endemic to the eastern Alxa and western Ordos areas of Inner Mongolia, China. Using transcriptome data, we identified a 1662-bp open reading frame encoding a 553-amino-acid protein corresponding to a Na/H antiporter (RtNHX1) from R. trigyna.