scholarly journals Callose in root apices of European chestnut seedlings: a physiological indicator of aluminum stress

2006 ◽  
Vol 26 (4) ◽  
pp. 431-440 ◽  
Author(s):  
Y. Hirano ◽  
L. Walthert ◽  
I. Brunner
Keyword(s):  
Aluminum Stress ◽  
European Chestnut ◽  
Root Apices ◽  
Physiological Indicator

Transcriptomic responses to aluminum stress in soybean roots

Genome ◽  
2011 ◽  
Vol 54 (11) ◽  
pp. 923-933 ◽  
Author(s):  
Jiangfeng You ◽  
Hongmei Zhang ◽  
Ning Liu ◽  
Lingling Gao ◽  
Lingnan Kong ◽  
...  
Keyword(s):  
Crop Production ◽  
Acid Soils ◽  
Aluminum Stress ◽  
Resistant Genotype ◽  
Citrate Transporter ◽  
Family Gene ◽  
Soybean Roots ◽  
Genome Array ◽  
Root Apices ◽  
Lignin Deposition

Aluminum (Al) toxicity is the primary limitation to crop production and plant growth in acid soils. Soybean has multiple mechanisms of Al resistance including the complexing and exclusion of Al in root apices by Al-induced citrate secretion. Microarray analysis is available for the identification of genes in soybean. In the present study, Affymetrix soybean genome array was used to identify the Al-induced differentially expressed genes in Al-resistant genotype Jiyu 70. With a cutoff of >2.0-fold (p < 0.05) between non Al-treated and Al-treated root apices, 561 genes were upregulated and 78 genes were downregulated when roots were exposed to 30 µmol/L AlCl3 for 4 h. Quantitative real-time PCR was used to test the microarray data. The analysis showed that nearly half of the Al-responsive genes were of unknown biological function. A higher proportion of genes related to transcription regulation and cell wall processes were observed in Al-induced up- and downregulated genes, respectively. Some genes homologous to the citrate transporter MATE family gene or C2H2 family transcription factor gene, STOP1, were detected in our analysis. Some genes related to lignin deposition were upregulated, which might be related to Al-induced root elongation inhibition.

scholarly journals Aluminum Stress Induces Irreversible Proteomic Changes in the Roots of the Sensitive but Not the Tolerant Genotype of Triticale Seedlings

Plants ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 165
Author(s):  
Agnieszka Niedziela ◽  
Lucyna Domżalska ◽  
Wioletta M. Dynkowska ◽  
Markéta Pernisová ◽  
Krystyna Rybka
Keyword(s):  
Protein Separation ◽  
Abiotic Stress Tolerance ◽  
Aluminum Stress ◽  
Seedling Root ◽  
Root Regrowth ◽  
Aluminum Ions ◽  
Materials Used ◽  
Root Apices ◽  
Dimensional Electrophoresis ◽  
Tolerant Genotype

Triticale is a wheat–rye hybrid with a higher abiotic stress tolerance than wheat and is better adapted for cultivation in light-type soils, where aluminum ions are present as Al-complexes that are harmful to plants. The roots are the first plant organs to contact these ions and the inhibition of root growth is one of the first plant reactions. The proteomes of the root apices in Al-tolerant and -sensitive plants were investigated to compare their regeneration effects following stress. The materials used in this study consisted of seedlings of three triticale lines differing in Al3+ tolerance, first subjected to aluminum ion stress and then recovered. Two-dimensional electrophoresis (2-DE) was used for seedling root protein separation followed by differential spot analysis using liquid chromatography coupled to tandem mass spectrometry (LC-MS-MS/MS). The plants’ tolerance to the stress was evaluated based on biometric screening of seedling root regrowth upon regeneration. Our results suggest that the Al-tolerant genotype can recover, without differentiation of proteome profiles, after stress relief, contrary to Al-sensitive genotypes that maintain the proteome modifications caused by unfavorable environments.

Aluminum stress stimulates the accumulation of organic acids in root apices of Brachiaria species

2002 ◽  
Vol 165 (5) ◽  
pp. 582-588 ◽  
Author(s):  
Peter Wenzl ◽  
Alba L. Chaves ◽  
Gloria M. Patiño ◽  
Jorge E. Mayer ◽  
Idupulapati M. Rao
Keyword(s):  
Organic Acids ◽  
Aluminum Stress ◽  
Root Apices

Wearable Triboelectric Nanogenerators for Heart Rate Monitoring

2021 ◽  
Author(s):  
Sophia Shen ◽  
Xiao Xiao ◽  
Xiao Xiao ◽  
Jun Chen
Keyword(s):  
Heart Rate ◽  
Cardiovascular Diseases ◽  
Causes Of Death ◽  
Heart Rate Monitoring ◽  
Triboelectric Nanogenerators ◽  
Physiological Indicator

Cardiovascular diseases are currently the leading causes of death globally and are projected to remain the leading cause in 2040, making heart rate an important physiological indicator to regularly monitor....

scholarly journals An infrared spectral biomarker accurately predicts neurodegenerative disease class in the absence of overt symptoms

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lila Lovergne ◽  
Dhruba Ghosh ◽  
Renaud Schuck ◽  
Aris A. Polyzos ◽  
Andrew D. Chen ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Neurodegenerative Disease ◽  
High Probability ◽  
Behavioral Characteristics ◽  
Brain Pathology ◽  
Disease Class ◽  
The Past ◽  
Infrared Spectral ◽  
New Biomarkers ◽  
Physiological Indicator

AbstractAlthough some neurodegenerative diseases can be identified by behavioral characteristics relatively late in disease progression, we currently lack methods to predict who has developed disease before the onset of symptoms, when onset will occur, or the outcome of therapeutics. New biomarkers are needed. Here we describe spectral phenotyping, a new kind of biomarker that makes disease predictions based on chemical rather than biological endpoints in cells. Spectral phenotyping uses Fourier Transform Infrared (FTIR) spectromicroscopy to produce an absorbance signature as a rapid physiological indicator of disease state. FTIR spectromicroscopy has over the past been used in differential diagnoses of manifest disease. Here, we report that the unique FTIR chemical signature accurately predicts disease class in mouse with high probability in the absence of brain pathology. In human cells, the FTIR biomarker accurately predicts neurodegenerative disease class using fibroblasts as surrogate cells.

Impact of the Asian gall wasp ( Dryocosmus kuriphilus ) on the radial growth of the European chestnut ( Castanea sativa ).

2021 ◽  
Author(s):  
Enrico Marcolin ◽  
Mario Pividori ◽  
Fernanda Colombari ◽  
Maria Chiara Manetti ◽  
Francesco Pelleri ◽  
...  
Keyword(s):  
Radial Growth ◽  
Castanea Sativa ◽  
Gall Wasp ◽  
Dryocosmus Kuriphilus ◽  
European Chestnut
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