Regulation of root secondary metabolites by partial root‐associated microbiotas under the shaping of licorice ecotypic differentiation in northwest China

2021 ◽  
Author(s):  
Yang Liu ◽  
Hao Wang ◽  
Ziheng Peng ◽  
Da Li ◽  
Weimin Chen ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Northwest China ◽  
Ecotypic Differentiation

scholarly journals Integration of Transcriptome and Proteome Analysis Reveals the Mechanism of Freezing Tolerance in Winter Rapeseed

2021 ◽  
Author(s):  
Jiaping Wei ◽  
Guoqiang Zheng ◽  
Xiaoyun Dong ◽  
Hui Li ◽  
Sushuang Liu ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Freezing Tolerance ◽  
Proteome Analysis ◽  
Enrichment Analysis ◽  
Northwest China ◽  
Early Spring ◽  
Freezing Stress ◽  
Ros Scavenging ◽  
Plant Pathogen Interaction ◽  
Winter Rapeseed

Abstract Winter rapeseed seedlings are susceptible to low temperature during overwintering in Northwest China, leading to reduced crops production. Freezing stress is one of the utmost environmental stresses in Northwest China from late autumn to early spring, which are eventful for overwinter survival rate of winter rapeseed. However, the molecular mechanism of freezing tolerance formation is still very backward in winter rapeseed. In this study, using a pair of freezing-sensitive and freezing-resistant cultivars NQF24 and NTS57, the exhaustive effects of freezing stress on freezing tolerance formation were evaluated by analyzing leaf at the levels of transcriptome, proteome, physiology and ultrastructure. There were 8497 differentially expressed genes (DEGs) and 418 differentially abundant proteins (DAPs) specifically identified in leaf of NQF24 under freezing stress, while 7358 DEGs and 573 DAPs were specifically identified in leaf of NTS57. Function enrichment analysis showed that most of the enriched DEGs and DAPs were associated with plant hormones signal transduction, fatty acid metabolism, ribosome, plant-pathogen interaction and secondary metabolites biosynthesis. Freezing tolerance is formed by enhanced signals transduction, increased the biosynthesis of protein and secondary metabolites, higher reactive oxygen species (ROS) scavenging, more osmolytes, lower lipid peroxidation, and stronger ultrastructure. These results can be taken as selection indicators in freezing tolerance breeding program in rapeseed.

scholarly journals Amycolatopsis aidingensis sp. nov., a Halotolerant Actinobacterium, Produces New Secondary Metabolites

2021 ◽  
Vol 12 ◽  
Author(s):  
Rui Li ◽  
Meng Wang ◽  
Zhen Ren ◽  
Yang Ji ◽  
Min Yin ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Complete Genome ◽  
Type Strain ◽  
Polyketide Synthase ◽  
Gene Clusters ◽  
Antitumor Agent ◽  
Northwest China ◽  
Rrna Gene ◽  
Circular Chromosome ◽  
Nocardicin A

A novel actinobacterium, strain YIM 96748T, was isolated from a saline soil sample collected from the south bank of Aiding Lake in Xinjiang Province, Northwest China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YIM 96748T is closely related to Amycolatopsis cihanbeyliensis BNT52T (98.9%) and Amycolatopsis jiangsuensis KLBMP 1262T (97.2%). The DNA–DNA relatedness between strain YIM 96748T and its closest type strain A. cihanbeyliensis BNT52T was 59.6%. The average nucleotide identity between strain YIM 96748T and its neighbor strain was 88.97%. Based on the genotypic and phenotypic characteristics, it is concluded that strain YIM 96748T represents a novel species of the genus Amycolatopsis, whose name was proposed as Amycolatopsis aidingensis sp. nov. The type strain is YIM 96748T. To investigate the biosynthetic potential of producing secondary metabolites, the complete genome of YIM 96748T was sequenced and analyzed. The complete genome sequence of YIM 96748T consists of a 7,657,695-bp circular chromosome, comprising 7,162 predicted genes with a DNA G + C content of 70.21 mol%. Fifty-one putative biosynthetic gene clusters of secondary metabolites were found, including the antibacterial/antitumor agent TLN-05220, the antibacterial agent nocardicin A, the antifungal agent nystatin A1, and the osmolyte ectoine. The investigation of the secondary metabolites of A. aidingensis YIM96748T led to the discovery of two new phenylpropyl acetate enantiomers, amycoletates A (1) and B (2), and five known compounds: 4-hydroxy phenethyl acetate (3), 2-p-acetoxyphenylethanol (4), (S)-ethyl indole-3-lactate (5), (R)-ethyl indole-3-lactate (6), and p-hydroxybenzoic acid (7). One of the gene clusters 14, 36, and 43, which contain a single module of polyketide synthase, might be responsible for the biosynthesis of compounds 1 and 2 from compound 7 as a precursor. Further studies, including the one strain many compounds approach (OSMAC) and genetic modification, are needed to explore novel compounds from this talented halophilic Amycolatopsis strain.

Lycopene alleviates sulfamethoxazole-induced hepatotoxicity in grass carp (Ctenopharyngodon idellus) via suppression of oxidative stress, inflammation and apoptosis

2020 ◽  
Vol 11 (10) ◽  
pp. 8547-8559
Author(s):  
Hongjing Zhao ◽  
Yu Wang ◽  
Mengyao Mu ◽  
Menghao Guo ◽  
Hongxian Yu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Secondary Metabolites ◽  
Human Health ◽  
Grass Carp ◽  
Aquatic Environment ◽  
Ctenopharyngodon Idellus

Antibiotics are used worldwide to treat diseases in humans and other animals; most of them and their secondary metabolites are discharged into the aquatic environment, posing a serious threat to human health.

Potent Insecticidal Secondary Metabolites Isolated from Acanthus montanus

Planta Medica ◽  
2011 ◽  
Vol 77 (05) ◽  
Author(s):  
E Amin ◽  
MM Radwan ◽  
SS El-Hawary ◽  
MM Fathy ◽  
R Mohammed ◽  
...  
Keyword(s):  
Secondary Metabolites
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