Welcome To Website IAS

Hot news
Achievement

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)

VIFOTEC Award

- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Centres
Website links
Vietnamese calendar
Library
Visitors summary
 Curently online :  9
 Total visitors :  7427081

Splicing defect of StDRO2 intron 1 promotes potato root growth by disturbing auxin transport to adapt to drought stress
Monday, 2024/02/12 | 06:52:17

Jianping Zhao, Baolin Yao, Ziai Peng, Xinyue Yang, Kuixiu Li, Xiaoyan Zhang, Haiyan Zhu, Xuan Zhou, Meixian Wang, Lihui Jiang, Xie He, Yan Liang, Xiaoping Zhan, Xiaoran Wang, Yuliang Dai, Yanfen Yang, Ao Yang, Man Dong, Suni Shi, Man Lu, Yi Zhao, Mingyun Shen, Liwei Guo, Changning Liu, Hongji Zhang, Decai Yu, Yunlong Du

Horticultural Plant Journal; Available online 3 February 2024

https://doi.org/10.1016/j.hpj.2023.11.003

Abstract

 

The formation of root system architecture (RSA) plays a crucial role in plant growth. OsDRO1 is known to have a function in controlling RSA in rice, however, the role of potato StDRO2, a homolog of rice OsDRO1, in root growth remains unclear. In this study, we obtained potato dro2 mutant lines by Clustered Regularly Interspaced Short Palindromic Repeats-CRISPR-Associated 9 (CRISPR/Cas9)-mediated genome editing system. The mutant lines were generated from a splicing defect of the StDRO2 intron 1, which causes a nonsense mutation in StDRO2. Furthermore, the secondary structure of StDRO2 mRNA analyzed with RNAfold WebServer was altered in the dro2 mutant. Mutation of StDRO2 conveys potato adaptation through changing the RSA via alteration of auxin transport under drought stress. The potato dro2 lines showed higher plant height, longer root length, smaller root growth angle and increased tuber weight than the wild-type. The alteration of RSA was associated with a disturbance of IAA distribution in the dro2 mutant, and the levels of StPIN7 and StPIN10 detected by using real-time PCR were up-regulated in the roots of potato dro2 lines grown under drought stress. Moreover, the microRNAs (miRNAs) PmiREN024536 and PmiREN024486 targeted the StDRO2 gene, and auxin positively and negatively regulated the expression of StDRO2 and the miRNAs PmiREN024536 and PmiREN024486, respectively, in the potato roots. Our data shows that a regulatory network involving auxin, StDRO2PmiREN024536 and PmiREN024486 can control RSA to convey potato fitness under drought stress.

 

See https://www.sciencedirect.com/science/article/pii/S2468014124000074

 

Fig. 7 Root phenotypes and expression levels of auxin efflux carrier genes in potato WT and dro2 mutant lines grown in the filed under normal or drought stress (A–J) Root lengths of three-month-old seedlings of wild-type ‘Li Shu 6’ (A, B) and dro2 mutant lines #1 (C, D), #2 (E, F), #3 (G, H), and #4 (I, J) grown under normal watering conditions (A, C, E, G, I) or drought stress (B, D, F, H, J). (K-P) Quantification of root lengths (K) (WT: nWater = 19, nDrought = 5; #1: nWater = 9, nDrought = 5; #2: nWater = 12, nDrought = 5; #3: nWater = 9, nDrought = 8; #4: nWater = 25, nDrought = 10) and the relative expression levels of StPIN1-StPIN10 genes in the roots of wild-type potato and dro2 mutant lines #1, #2, #3, #4 under normal watering or drought stress (L-P). The data represent at least three biological replicates. Data are means ± SD. *P < 0.05, **P < 0.01 (Student’s t-test for image K, and SPSS analysis for images L-P). ND: no difference. P1, P2, ……, P10 represents potato genes StPIN1, StPIN2,….., StPIN10. Scale bar = 1 cm.

Back      Print      View: 72

[ Other News ]___________________________________________________
  • Genome-wide analysis of autophagy-associated genes in foxtail millet (Setaria italica L.) and characterization of the function of SiATG8a in conferring tolerance to nitrogen starvation in rice.
  • Arabidopsis small nucleolar RNA monitors the efficient pre-rRNA processing during ribosome biogenesis
  • XA21-specific induction of stress-related genes following Xanthomonas infection of detached rice leaves.
  • Reducing the Use of Pesticides with Site-Specific Application: The Chemical Control of Rhizoctonia solani as a Case of Study for the Management of Soil-Borne Diseases
  • OsJRL, a rice jacalin-related mannose-binding lectin gene, enhances Escherichia coli viability under high-salinity stress and improves salinity tolerance of rice.
  • Production of lipopeptide biosurfactants by Bacillus atrophaeus 5-2a and their potential use in microbial enhanced oil recovery.
  • GhABF2, a bZIP transcription factor, confers drought and salinity tolerance in cotton (Gossypium hirsutum L.).
  • Resilience of cassava (Manihot esculenta Crantz) to salinity: implications for food security in low-lying regions.
  • Cellulose synthase complexes act in a concerted fashion to synthesize highly aggregated cellulose in secondary cell walls of plants
  • No adverse effects of transgenic maize on population dynamics of endophytic Bacillus subtilis strain B916-gfp
  • Identification and expression analysis of OsLPR family revealed the potential roles of OsLPR3 and 5 in maintaining phosphate homeostasis in rice
  • Functional analysis of molecular interactions in synthetic auxin response circuits
  • Titanium dioxide nanoparticles strongly impact soil microbial function by affecting archaeal nitrifiers.
  • Inducible Expression of the De-Novo Designed Antimicrobial Peptide SP1-1 in Tomato Confers Resistance to Xanthomonas campestris pv. vesicatoria.
  • Toward combined delignification and saccharification of wheat straw by a laccase-containing designer cellulosome
  • SNP-based discovery of salinity-tolerant QTLs in a bi-parental population of rice (Oryza sativa)
  • Pinpointing genes underlying the quantitative trait loci for root-knot nematode resistance in palaeopolyploid soybean by whole genome resequencing.
  • Transcriptome- Assisted Label-Free Quantitative Proteomics Analysis Reveals Novel Insights into Piper nigrum -Phytophthora capsici Phytopathosystem.
  • Brassinosteroids participate in the control of basal and acquired freezing tolerance of plants
  • Rapid hyperosmotic-induced Ca2+ responses in Arabidopsis thaliana exhibit sensory potentiation and involvement of plastidial KEA transporters

 

Designed & Powered by WEBSO CO.,LTD