Research Article

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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

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Abiotic stress; Heavy metals; Photosynthesis; Phytotoxicity; Stress resistance; Woody species

Sibipiruna (Caesalpinia peltophoroides Benth) is a tree of the Brazilian Atlantic Forest. It is a flowering ornamental tree widely planted throughout Brazil and indicated for restoration of degraded areas. We examined protein profile changes in leaves of seedlings of C. peltophoroides grown in nutrient solution under greenhouse conditions, after exposure to cadmium (Cd; ... more

L.M.C. Gomes; A.S. Gesteira; A.A.F. de Almeida; A.V. de Castro; L.O. Dias; C.P. Pirovani; F.P. Gomes
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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
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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
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Antigenotoxicity; Cell death; Genotoxicity; Julocroton triqueter

Julocroton triqueter extracts have antileishmanial activity; however, the effect on genetic stability has not been studied. We evaluated genotoxic and cell death induction potential (in vitro and in vivo) of J. triqueter var. triqueter hydroalcoholic extracts, as well as their antigenotoxic potential in vivo. The in vitro ... more

V.R. Moreira; A.C.S. Dias; A.R.P. Martins; M.I.S. Lima; I.C.P.B. Serra; M.N.S. Ribeiro; F.R.F. Nascimento; S.R.F. Pereira
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
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Abiotic stress; Genetic engineering; GmIMT1gene; Soybean

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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
12/11/2013
Acrosin; Phosphorylation; Pig sperm; Proacrosin; sp32

This study investigated the relationship between acrosin activation and pig sperm proacrosin binding protein (sp32) phosphorylation levels. Differently processed pig spermatozoa (fresh semen sperm, capacitation sperm, acrosome reaction sperm, capacitation-like sperm, and thawed sperm) were subjected to sodium dodecyl sulfate polyacrylamide gel electrophoresis and Western blot analysis. ... more

P.L. Sun; L.X. Yang; J.J. Cui; Y. Tian; Y. Liu; Y. Jin
08/16/2012
Alternaria solani; Alternaric acid; CDPK; Host-selective toxin; Hypersensitive cell death; Phosphorylation

Calcium-dependent protein kinases (CDPK) are an essential component of plant defense mechanisms against pathogens. We investigated the effect of alternaric acid, a host-specific toxin produced by the plant fungal pathogen Alternaria solani (Pleosporaceae), on a putative plasma membrane and cytosolic kinase RiCDPK2 of potato (Solanum tuberosum) and on hypersensitive cell ... more

A. Hassan; T. Okuta; M. Kato; N. Hatsugai; Y. Sano; T. Ishimori; K. Okazaki; M.A. Doullah; M.M. Shah

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