Research Article

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Abiotic stress; Autophagy; Phylogeny; Rice

Autophagy, a complex and conserved mechanism, serving as a defense response in all eukaryotic organisms, is regulated by several proteins, among which ATG proteins are the most important due to their involvement in autophagosome formation. ATG6/Beclin-1 proteins, reported to be essential for autophagosome formation and assigned as a conserved domain, were subjected to database searches. ... more

R.M. Rana; S. Dong; Z. Ali; J. Huang; H.S. Zhang
03/12/2014
Abiotic stress; Cell death; Chaperone; Endoplasmic reticulum; Intracellular pH; Phosphorylation

Environmental stresses such as drought, freezing, and high salinity induce osmotic stress in plant cells. The plant response to osmotic stress involves a number of physiological and developmental changes, which are made possible, in part, by the modulation of the expression of specific genes. Phosphate-induced-1 gene (PHI-1) was first isolated from phosphate-treated ... more

A.O. Sousa; E.T.C.M. Assis; C.P. Pirovani; F.C. Alvim; M.G.C. Costa
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Abiotic stress; Biotic stress; Hormone; Rice

Plant hormones play important roles in the crosstalk between biotic and abiotic stresses in rice throughout its entire growth period. However, these interactions are not completely understood. In this study, the physiological performance of rice seedlings under a single stress and a sequential combination of various stresses (intercross stress) was determined. We found that catalase, ... more

Y.P. Zhang; Z.G. E; H. Jiang; L. Wang; J. Zhou; D.F. Zhu
03/30/2015
Abiotic stress; Fatty acids; Proteomics; Transcriptomics; Zea mays

The aim of this study was to characterize maize lines tolerant to cold temperatures during the germination process. Seeds from lines with different levels of tolerance to low temperatures were used; 3 lines were classified as tolerant and 3 as susceptible to low germination temperatures. A field was set up to multiply seeds from selected lines. After the seeds were harvested and ... more

I.C. Silva-Neta; E.V. Pinho; A.D. Veiga; R.G. Pìnho; R.M. Guimarães; F. Caixeta; H.O. Santos; T.L. Marques
11/10/2011
Abiotic stress; Aluminum; Gene expression; MicroRNAs

MicroRNAs are small 21-nucleotide RNA molecules with regulatory roles in development and in response to stress. Expression of some plant miRNAs has been specifically associated with responses to abiotic stresses caused by cold, light, iron, and copper ions. In acid soils, aluminum solubility increases, thereby causing severe damage to plants. Although physiological aspects of aluminum ... more

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Abiotic stress; Drought stress; Sorghum bicolor; Sorghum breeding; Sorghum yield

Twenty-five cultivars of grain sorghum [Sorghum bicolor (L.) Moench] were examined under both drought stress and normal conditions in 4 experiments. In each condition, genotypes were evaluated in a factorial experiment using a randomized complete block design with 3 replications. Eight drought tolerance indices including stability tolerance index, mean productivity (MP), ... more

C.B. Menezes; C.A. Ticona-Benavente; F.D. Tardin; M.J. Cardoso; E.A. Bastos; D.W. Nogueira; A.F. Portugal; C.V. Santos; R.E. Schaffert
02/07/2014
Abiotic stress; Genetic engineering; GmIMT1gene; Soybean

Here, we aimed to clone and identify the GmIMT1 gene related to the salt stress response in soybean. The full-length cDNA sequence of the GmIMT1 gene was amplified in soybean using degenerate primers of Mesembrythmum crystallium. To understand the stress response, the GmIMT1 gene was cloned and sequenced. Then, the expression vectors of the gene were ... more

H.T. Wang; N. Guo; J.M. Zhao; A. Karthikeyan; D. Xue; C.C. Xue; J.Y. Xu; Z.H. Xu; J.Y. Gai; H. Xing
07/30/2019
Adsorption process; DNA bioassays; Heavy metals; Nanoparticals; Pollen grain performance; Soybean

Genotoxicity caused by heavy metals can negatively affect vital processes of crop plants, though remedial measures can be used to reduce such damage. We examined the possible stimulatory and phytotoxicity impacts of three nanosized titanium dioxide (nTiO2) doses on soybean (Glycine max) and how adsorption of lead (Pb) onto the surface of nTiO ... more

E. Abdelhaliem; J. Al-Shalawi
03/26/2014
Growth inhibition; Low-energy ion-beam implantation; Photosynthesis; RNA-seq; Transcriptome

Transcriptomic research based on RNA sequencing (RNA-seq) technology is innovative and will provide new opportunities and biological perspectives for the use of ion-beam implantation in plants. Using RNA-seq, transcriptomes of whole rice seedlings generated from seeds implanted with a low-energy N+ beam were analyzed 96 h after planting. We identified 544 transcripts that were ... more

Q.F. Chen; H.Y. Ya; W.D. Wang; Z. Jiao
02/28/2021
DNA integrity; Nanomaterials; Nanotoxicity; Phytotoxicity

Although environmental toxicity of high concentrations of nanoparticles (NP) is well reported in the literature, information about their effects on biological systems at environmentally relevant concentrations remains scarce. We investigated whether low ZnO-NP concentrations influence the dynamics of cell division processes, cause nuclear abnormalities and induce ... more

L.L.G. Sampaio; É.P.C. Bogea; E.L. Neves; deM.O. Mendes; É.F.L. Araújo; M.O. Baia; J.O. da Silva; G. Malafaia; I.P.P. de Menezes