1
|
Zeng X, Cao Y, Wang L, Wang M, Wang Q, Yang Q. Viability and transcriptional responses of multidrug resistant E. coli to chromium stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121346. [PMID: 36868548 DOI: 10.1016/j.envpol.2023.121346] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/03/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The viability of multidrug resistant (MDR) bacteria in environment is critical for the spread of antimicrobial resistance. In this study, two Escherichia coli strains, MDR LM13 and susceptible ATCC25922, were used to elucidate differences in their viability and transcriptional responses to hexavalent chromium (Cr(VI)) stress. The results show that the viability of LM13 was notably higher than that of ATCC25922 under 2-20 mg/L Cr(VI) exposure with bacteriostatic rates of 3.1%-57%, respectively, for LM13 and 0.9%-93.1%, respectively, for ATCC25922. The levels of reactive oxygen species and superoxide dismutase in ATCC25922 were much higher than those in LM13 under Cr(VI) exposure. Additionally, 514 and 765 differentially expressed genes were identified from the transcriptomes of the two strains (log2|FC| > 1, p < 0.05). Among them, 134 up-regulated genes were enriched in LM13 in response to external pressure, but only 48 genes were annotated in ATCC25922. Furthermore, the expression levels of antibiotic resistance genes, insertion sequences, DNA and RNA methyltransferases, and toxin-antitoxin systems were generally higher in LM13 than in ATCC25922. This work shows that MDR LM13 has a stronger viability under Cr(VI) stress, and therefore may promote the dissemination of MDR bacteria in environment.
Collapse
Affiliation(s)
- Xiangpeng Zeng
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Yu Cao
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Lanning Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Min Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Qiang Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, 453007, China
| | - Qingxiang Yang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang, 453007, China.
| |
Collapse
|
2
|
Gu C, Shang L, Zhang G, Wang Q, Ma Q, Hong S, Zhao Y, Yang L. Identification and Expression Analysis of NAC Gene Family in Weeping Trait of Lagerstroemia indica. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11162168. [PMID: 36015471 PMCID: PMC9413744 DOI: 10.3390/plants11162168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 05/05/2023]
Abstract
Lagerstroemia indica is a widely used ornamental plant in summer gardens because of its desirable plant shape. The weeping traits of plants are related to secondary cell wall thickness and hormone signaling. NAC (NAM-ATAF1/2-CUC2), as one of the plant-specific transcription factors, is a switch for the secondary cell wall and also involved in leaf senescence, phytohormone signaling, and other growth processes. We identified a total of 21 LiNAC genes from the transcriptome data, which we divided into 14 subgroups and 2 groups. The physicochemical characteristics of amino acids, subcellular localization, transmembrane structure, GO and KEGG enrichment, and expression patterns were also examined. The qRT-PCR analysis showed that the expressions of LiNAC8 and LiNAC13 in upright L. indica 'Shaoguifei' and weeping L. indica 'Xiariwuniang' were significantly higher from the beginning to the end of growth stage (S1-S3), and the expressions of 'Shaoguifei' were always higher than those of 'Xiariwuniang'. However, LiNAC2 showed a downward trend in S1-S3 and the relative expression level of 'Shaoguifei' was lower than that of 'Xiariwuniang'. It is hypothesized that these LiNAC genes may be involved in the regulation of weeping traits in L. indica. The results of this study provide a basis for analyzing the functions of LiNAC genes and help to explore the molecular regulatory mechanisms related to the weeping traits in L. indica.
Collapse
Affiliation(s)
- Cuihua Gu
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Linxue Shang
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Guozhe Zhang
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Qun Wang
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Qingqing Ma
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Sidan Hong
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
| | - Yu Zhao
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Correspondence: (Y.Z.); (L.Y.)
| | - Liyuan Yang
- College of Landscape and Architecture, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants, Zhejiang Agriculture & Forestry University, Hangzhou 311300, China
- Correspondence: (Y.Z.); (L.Y.)
| |
Collapse
|
3
|
Liu C, Chen S, Wang G, Chen S. Decoding the molecular regulation mechanism of plant architecture in woody plants. THE NEW PHYTOLOGIST 2022; 235:8-10. [PMID: 35460568 DOI: 10.1111/nph.18145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Caixia Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040, Harbin, China
| | - Song Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040, Harbin, China
| | - Guohua Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040, Harbin, China
- College of Information and Computer Engineering, Northeast Forestry University, 150040, Harbin, China
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040, Harbin, China
| |
Collapse
|
4
|
Moulia B, Badel E, Bastien R, Duchemin L, Eloy C. The shaping of plant axes and crowns through tropisms and elasticity: an example of morphogenetic plasticity beyond the shoot apical meristem. THE NEW PHYTOLOGIST 2022; 233:2354-2379. [PMID: 34890051 DOI: 10.1111/nph.17913] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Shoot morphogenetic plasticity is crucial to the adaptation of plants to their fluctuating environments. Major insights into shoot morphogenesis have been compiled studying meristems, especially the shoot apical meristem (SAM), through a methodological effort in multiscale systems biology and biophysics. However, morphogenesis at the SAM is robust to environmental changes. Plasticity emerges later on during post-SAM development. The purpose of this review is to show that multiscale systems biology and biophysics is insightful for the shaping of the whole plant as well. More specifically, we review the shaping of axes and crowns through tropisms and elasticity, combining the recent advances in morphogenetic control using physical cues and by genes. We focus mostly on land angiosperms, but with growth habits ranging from small herbs to big trees. We show that generic (universal) morphogenetic processes have been identified, revealing feedforward and feedback effects of global shape on the local morphogenetic process. In parallel, major advances have been made in the analysis of the major genes involved in shaping axes and crowns, revealing conserved genic networks among angiosperms. Then, we show that these two approaches are now starting to converge, revealing exciting perspectives.
Collapse
Affiliation(s)
- Bruno Moulia
- Université Clermont Auvergne, INRAE, PIAF, F-63000, Clermont-Ferrand, France
| | - Eric Badel
- Université Clermont Auvergne, INRAE, PIAF, F-63000, Clermont-Ferrand, France
| | - Renaud Bastien
- Université Clermont Auvergne, INRAE, PIAF, F-63000, Clermont-Ferrand, France
- INSERM U1284, Center for Research and Interdisciplinarity (CRI), Université de Paris, F-75004, Paris, France
| | - Laurent Duchemin
- Physique et Mécanique des Milieux Hétérogenes, CNRS, ESPCI Paris, Université PSL, Sorbonne Université, Université de Paris, F-75005, Paris, France
| | - Christophe Eloy
- Aix Marseille Univ, CNRS, Centrale Marseille, IRPHE, F-13013, Marseille, France
| |
Collapse
|