Research Article

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10/30/2019
Arachis hypogaea; Biological nitrogen fixation; Drought tolerance; ERF8 and NCED genes

The peanut plant has high plasticity and great adaptability to adverse conditions, including drought. To mitigate the negative effects of drought on legumes, nitrogen-fixing microorganisms have been investigated in some plant species, such as soybeans and beans. We analyzed the role Bradyrhizobium strains in peanut genotypes subjected to water deficit by ... more

S.L. Brito; A.B. Santos; D.D. Barbosa; P.D. Fernandes; P.I. Fernandes-Júnior; L.M. Lima
10/30/2019
Antioxidative enzymes; Gas exchange; Gene expression; GUSP1; MYB60

Cotton has high adaptability to adverse conditions; however, one of the main factors causing production loss is water deficits. To adapt to these conditions, plants go through a series of changes, many of them driven by genes that are expressed to increase drought tolerance. We examined the expression profile of the MYB60 and GUSP1 genes, which ... more

V.G.L. Batista; P.D. Fernandes; R.Cdos Santos; P.A.Melo Filho; L.M. de Lima
01/30/2015
Arachis hypogaea; Black aspergilla; Loop-mediated isothermal amplification; Ochratoxins; Polymerase chain reaction

Over the last decade, ochratoxin A (OTA) has been widely described and is ubiquitous in several agricultural products. Ochratoxins represent the second-most important mycotoxin group after aflatoxins. A total of 34 samples were surveyed from 3 locations, including Mecca, Madina, and Riyadh, Saudi Arabia, during 2012. Fungal contamination frequency was determined for surface-sterilized ... more

H.M. Al-Sheikh
12/17/2015
Abscisic acid; Drought tolerance; Medicago sativa L.; Molybdenum cofactor sulfurase

The stress phytohormone abscisic acid (ABA) plays pivotal roles in plants’ adaptive responses to adverse environments. Molybdenum cofactor sulfurases influence aldehyde oxidase activity and ABA biosynthesis. In this study, we isolated a novel EsMcsu1 gene encoding a molybdenum cofactor sulfurase from Eutrema salsugineum. EsMcus1 transcriptional patterns varied ... more

C. Zhou; Z.Y. Ma; L. Zhu; J.S. Guo; J. Zhu; J.F. Wang
12/15/2015
Bacterial artificial chromosome library; Drought tolerance; Gossypium tomentosum; SSR marker; Verticillium wilt resistance; Wild cotton

Gossypium tomentosum is a wild allotetraploid species with the (AD)5 genome. It is characterized by many useful traits including finer fiber fineness, drought tolerance, and Fusarium and Verticillium resistance. We constructed the first bacterial artificial chromosome library for Gossypium tomentosum. With high quality and broad coverage, ... more

F. Liu; Y.H. Wang; H.Y. Gao; C.Y. Wang; Z.L. Zhou; X.Y. Cai; X.X. Wang; Z.S. Zhang; K.B. Wang
12/07/2015
Cowpea; Drought tolerance; Multivariate analysis; Recurrent selection; Vigna unguiculata

Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought ... more

C.C. Sousa; K.J. Damasceno-Silva; E.A. Bastos; M.M. Rocha
10/19/2015
Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Sorghum grain yield can be significantly affected by climatic changes, especially drought and high temperature. The purpose of this study was to evaluate hybrids of grain sorghum grown under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Forty-nine hybrids were grown in a randomized block design experiment, with three ... more

C.B. Menezes; D.C. Saldanha; C.V. Santos; L.C. Andrade; M.P.Mingote Júlio; A.F. Portugal; F.D. Tardin
08/05/2016
Drought tolerance; Genetic map; Gossypium; Quantitative trait loci; Simple sequence repeat markers

Cotton is one of the most important natural fiber crops in the world. Its growth and yield is greatly limited by drought. A quantitative trait locus (QTL) analysis was therefore conducted to investigate the genetic basis of drought tolerance in cotton (Gossypium spp) using 188 F2:3 lines developed from an inter-specific cross between a wild cotton species, G. ... more

J.Y. Zheng; G. Oluoch; M.K.Riaz Khan; X.X. Wang; X.Y. Cai; Z.L. Zhou; C.Y. Wang; Y.H. Wang; X.Y. Li; F. Liu; K.B. Wang; J.Y. Zheng; G. Oluoch; M.K.Riaz Khan; X.X. Wang; X.Y. Cai; Z.L. Zhou; C.Y. Wang; Y.H. Wang; X.Y. Li; F. Liu; K.B. Wang
01/08/2019
Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Drought stress is a serious obstacle for crop production, especially in arid and semi-arid areas of the world. Sorghum is a useful crop to grow in areas with erratic, poorly distributed or inadequate rainfall. To help determine the best alternatives, we evaluated 30 sorghum cultivars with and without water stress in the post-flowering plant stage. The work was ... more

P.S.C. Batista; A.J. Carvalho; A.F. Portugal; E.A. Bastos; M.J. Cardoso; L.G. Torres; M.P.Mingote Júlio; C.B. de Menezes
08/19/2015
Abiotic stress; Phoenix dactylifera L.; Proline; Salinity

Plants exposed to certain abiotic stress conditions tend to produce the amino acid proline, which acts as an active osmolyte, a metal chelator, an antioxidant, and a signaling molecule. There is increasing evidence that proline accumulates in plants due to a wide range of abiotic stress, in particular high soil salinity and drought. Therefore, proline content is often used as a marker- ... more

M.W. Yaish

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