The effects of fluctuations in the nutrient supply on the expression of ANR1 and 11 other MADS box genes in shoots and roots of Arabidopsis thaliana

Botany ◽  
2010 ◽  
Vol 88 (12) ◽  
pp. 1023-1031 ◽  
Author(s):  
Yinbo Gan ◽  
Zhongjing Zhou ◽  
Lijun An ◽  
Shengjie Bao ◽  
Qing Liu ◽  
...  

We previously reported that the response of ANR1 expression in shoots to nitrogen (N) starvation and resupply was different from its response in roots. However, how the other root-expressed MADS box genes respond to different N fluctuations in the shoot, and how these MADS box genes respond to complete nutrient fluctuations in the root, were unknown. Results from this study have shown that some members of these root-expressed MADS box genes have different responses in the shoot and root to N treatments, whereas others have similar responses or no responses to the N treatments. Among these 12 root-expressed MADS box genes, AGL16 was the only gene to show a similar response to N fluctuation in both shoots and roots in the same way as ANR1. Results from this study have also shown that ANR1, AGL12, AGL16, AGL19, and SOC1 responded to changes of the complete nutrient condition, which might indicate that they could play key roles in general nutrient stress. These novel findings will help us to further characterize these 12 MADS box genes to uncover the complex regulatory networks that integrate plant responses to changes in nutrient availability.

2017 ◽  
Vol 53 (No. 1) ◽  
pp. 30-36
Author(s):  
Z.M. Almutairi

Silver nanoparticles (AgNPs) have been shown to enhance seed germination and plant growth. In this study, we examined the plant response to AgNP dosage using a model plant, Arabidopsis thaliana. Seedlings were treated with different concentrations of AgNPs. Seedling fresh and dry weights were measured for all treatments. The exposure of plants to 1 mg/l AgNPs resulted in a significant increase in seedling fresh and dry weights compared with control plants, although the exposure to lower and higher concentrations resulted in a decrease in fresh and dry weights. Expression profiling for 22 MADS-box genes was carried out using quantitative real-time PCR (qRT-PCR). Among the investigated MADS-box genes, eight genes were upregulated and four genes were downregulated at each of the AgNP concentrations, 0.1 and 1 mg/l. Revealing the effects of AgNPs on the expression of MADS-box genes will increase our knowledge of their role before implementing a large-scale agricultural utilization of AgNPs in the improvement of plant growth and development.


Planta ◽  
2005 ◽  
Vol 222 (4) ◽  
pp. 730-742 ◽  
Author(s):  
Yinbo Gan ◽  
Sophie Filleur ◽  
Azizur Rahman ◽  
Susan Gotensparre ◽  
Brian G. Forde

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e105597 ◽  
Author(s):  
Chunyan Yu ◽  
Sha Su ◽  
Yichun Xu ◽  
Yongqin Zhao ◽  
An Yan ◽  
...  

2019 ◽  
Vol 10 ◽  
Author(s):  
Natalia Castelán-Muñoz ◽  
Joel Herrera ◽  
Wendy Cajero-Sánchez ◽  
Maite Arrizubieta ◽  
Carlos Trejo ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0165075 ◽  
Author(s):  
Katrin Ehlers ◽  
Amey S. Bhide ◽  
Dawit G. Tekleyohans ◽  
Benjamin Wittkop ◽  
Rod J. Snowdon ◽  
...  

2018 ◽  
Vol 11 (1) ◽  
pp. 12-28 ◽  
Author(s):  
Nikwan Shariatipour ◽  
Bahram Heidari

Background:The development of genome microarrays of the model plant;Arabidopsis thaliana, with increasing repositories of publicly available data and high-throughput data analysis tools, has opened new avenues to genome-wide systemic analysis of plant responses to environmental stresses.Objective:To identify differentially expressed genes and their regulatory networks inArabidopsis thalianaunder harsh environmental condition.Methods:Two replications of eight microarray data sets were derived from two different tissues (root and shoot) and two different time courses (control and 24 hours after the beginning of stress occurrence) for comparative data analysis through various bioinformatics tools.Results:Under drought stress, 2558 gene accessions in root and 3691 in shoot tissues had significantly differential expression with respect to control condition. Likewise, under salinity stress 9078 gene accessions in root and 5785 in shoot tissues were discriminated between stressed and non-stressed conditions. Furthermore, the transcription regulatory activity of differentially expressed genes was mainly due to hormone, light, circadian and stress responsivecis-acting regulatory elements among which ABRE, ERE, P-box, TATC-box, CGTCA-motif, GARE-motif, TGACG-motif, GAG-motif, GA-motif, GATA- motif, TCT-motif, GT1-motif, Box 4, G-Box, I-box, LAMP-element, Sp1, MBS, TC-rich repeats, TCA-element and HSE were the most important elements in the identified up-regulated genes.Conclusion:The results of the high-throughput comparative analyses in this study provide more options for plant breeders and give an insight into genes andcis-acting regulatory elements involved in plant response to drought and salinity stresses in strategic crops such as cereals.


Sign in / Sign up

Export Citation Format

Share Document