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https://www.readbyqxmd.com/read/27933379/the-role-of-receptor-like-protein-kinases-rlks-in-abiotic-stress-response-in-plants
#1
REVIEW
Yaoyao Ye, Yanfei Ding, Qiong Jiang, Feijuan Wang, Junwei Sun, Cheng Zhu
We review and introduce recent studies on RLK s involved in the abiotic stress response and provide insights into potential regulatory mechanisms for alleviating abiotic stress. Abiotic stresses are important factors affecting plant growth and development, resulting in crop production reduction and even plant death. To survive, plants utilize different mechanisms to respond and adapt to continuously changing environmental factors. Understanding of the molecular mechanisms of plant response to various stresses will aid in improving tolerance of plants to abiotic stress through genetic engineering, which would greatly promote the development of modern agriculture...
December 8, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27933261/efficient-regeneration-system-from-rye-leaf-base-segments
#2
Kamil Haliloglu, Murat Aydin
Rye is second only to wheat among grains most widely used in the making of bread and is also a very important gene resource for breeding and improvement of wheat and other cereal crops owing to tolerance to abiotic stress factors such as low temperatures, drought and poor soil conditions. However, application of biotechnologies has been limited in rye breeding since it is one of the most recalcitrant species in tissue culture. A simple and fast regeneration system from leaf-base segment explant of rye was developed in this study...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933086/genotypic-differences-in-phosphorus-efficiency-and-the-performance-of-physiological-characteristics-in-response-to-low-phosphorus-stress-of-soybean-in-southwest-of-china
#3
Tao Zhou, Yongli Du, Shoaib Ahmed, Ting Liu, Menglu Ren, Weiguo Liu, Wenyu Yang
Southwest of China is one of the major soybean (Glycine max L.) production regions in China with low availability of soil phosphorus (P). Whereas little information is available on P-efficient soybean genotypes in this region, even though using P-efficient soybean genotypes is a sustainable P management strategy for enhancing yield and P use efficiency. To assess the genetic variation on P use efficiency, 274 soybean genotypes were employed to compare the yields and P acquisition potentials in the field. Additionally, 10 representational genotypes (5 P-efficient genotypes and 5 P-inefficient genotypes) were grown in hydroponic media containing low P treatment (0...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933076/overexpression-of-tanac2d-displays-opposite-responses-to-abiotic-stresses-between-seedling-and-mature-stage-of-transgenic-arabidopsis
#4
Quanjun Huang, Yan Wang
Environmental stresses frequently affect plant growth and development, and many genes have been found to be induced by unfavorable environmental conditions. Here, we reported the biological functions of TaNAC2D, a stress-related NAC (NAM, ATAF, and CUC) gene from wheat. TaNAC2D showed transcriptional activator activity in yeast. TaNAC2D-GFP fusion protein was localized in the nucleus of wheat mesophyll protoplasts. TaNAC2D transcript abundance was significantly induced by NaCl, PEG6000, and abscisic acid (ABA) at seedling stage, and repressed by NaCl and PEG6000 at mature plant stage...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933075/a-non-specific-setaria-italica-lipid-transfer-protein-gene-plays-a-critical-role-under-abiotic-stress
#5
Yanlin Pan, Jianrui Li, Licong Jiao, Cong Li, Dengyun Zhu, Jingjuan Yu
Lipid transfer proteins (LTPs) are a class of cysteine-rich soluble proteins having small molecular weights. LTPs participate in flower and seed development, cuticular wax deposition, also play important roles in pathogen and abiotic stress responses. A non-specific LTP gene (SiLTP) was isolated from a foxtail millet (Setaria italica) suppression subtractive hybridization library enriched for differentially expressed genes after abiotic stress treatments. A semi-quantitative reverse transcriptase PCR analysis showed that SiLTP was expressed in all foxtail millet tissues...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933070/transcriptional-responses-in-root-and-leaf-of-prunus-persica-under-drought-stress-using-rna-sequencing
#6
Najla Ksouri, Sergio Jiménez, Christina E Wells, Bruno Contreras-Moreira, Yolanda Gogorcena
Prunus persica L. Batsch, or peach, is one of the most important crops and it is widely established in irrigated arid and semi-arid regions. However, due to variations in the climate and the increased aridity, drought has become a major constraint, causing crop losses worldwide. The use of drought-tolerant rootstocks in modern fruit production appears to be a useful method of alleviating water deficit problems. However, the transcriptomic variation and the major molecular mechanisms that underlie the adaptation of drought-tolerant rootstocks to water shortage remain unclear...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933045/what-is-the-link-between-stringent-response-endoribonuclease-encoding-type-ii-toxin-antitoxin-systems-and-persistence
#7
Bhaskar C M Ramisetty, Dimpy Ghosh, Maoumita Roy Chowdhury, Ramachandran S Santhosh
Persistence is a transient and non-inheritable tolerance to antibiotics by a small fraction of a bacterial population. One of the proposed determinants of bacterial persistence is toxin-antitoxin systems (TASs) which are also implicated in a wide range of stress-related phenomena. Maisonneuve E, Castro-Camargo M, Gerdes K. 2013. Cell 154:1140-1150 reported an interesting link between ppGpp mediated stringent response, TAS, and persistence. It is proposed that accumulation of ppGpp enhances the accumulation of inorganic polyphosphate which modulates Lon protease to degrade antitoxins...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27933042/the-role-of-stress-and-stress-adaptations-in-determining-the-fate-of-the-bacterial-pathogen-listeria-monocytogenes-in-the-food-chain
#8
REVIEW
Kerrie NicAogáin, Conor P O'Byrne
The foodborne pathogen Listeria monocytogenes is a highly adaptable organism that can persist in a wide range of environmental and food-related niches. The consumption of contaminated ready-to-eat foods can cause infections, termed listeriosis, in vulnerable humans, particularly those with weakened immune systems. Although these infections are comparatively rare they are associated with high mortality rates and therefore this pathogen has a significant impact on food safety. L. monocytogenes can adapt to and survive a wide range of stress conditions including low pH, low water activity, and low temperature, which makes it problematic for food producers who rely on these stresses for preservation...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27932944/role-of-homocysteine-in-the-ischemic-stroke-and-development-of-ischemic-tolerance
#9
REVIEW
Ján Lehotský, Barbara Tothová, Maria Kovalská, Dušan Dobrota, Anna Beňová, Dagmar Kalenská, Peter Kaplán
Homocysteine (Hcy) is a toxic, sulfur-containing intermediate of methionine metabolism. Hyperhomocysteinemia (hHcy), as a consequence of impaired Hcy metabolism or defects in crucial co-factors that participate in its recycling, is assumed as an independent human stroke risk factor. Neural cells are sensitive to prolonged hHcy treatment, because Hcy cannot be metabolized either by the transsulfuration pathway or by the folate/vitamin B12 independent remethylation pathway. Its detrimental effect after ischemia-induced damage includes accumulation of reactive oxygen species (ROS) and posttranslational modifications of proteins via homocysteinylation and thiolation...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27932449/oral-iron-treatment-response-and-predictors-in-anaemic-adolescents-and-adults-with-ibd-a-prospective-controlled-open-label-trial
#10
David S Rampton, James R Goodhand, Neerav M Joshi, Abu-Bakarr Karim, Yasmine Koodun, Farah M Barakat, Lucia Macken, Douglas G Ward, Tariq H Iqbal, Jenny Epstein, John M Fell, Ian R Sanderson
BACKGROUND: Because of previous concerns about the efficacy and safety of oral iron for treating iron deficiency anaemia in IBD, particularly in young people, we compared the effects of ferrous sulphate on haemoglobin response, disease activity and psychometric scores in adolescents and adults with IBD. We also assessed the relation of baseline serum hepcidin to haemoglobin response. METHODS: We undertook a prospective, open-label, 6-week non-inferiority trial of the effects of ferrous sulphate 200mg twice daily on haemoglobin, iron status, hepcidin, disease activity (Harvey-Bradshaw Index, Simple Colitis Clinical Activity Index, C-reactive protein (CRP), faecal calprotectin and psychometric scores in 45 adolescents (age 13-18 years) and 43 adults (>18 years)...
December 7, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27931687/l-form-transformation-phenomenon-in-mycobacterium-tuberculosis-associated-with-drug-tolerance-to-ethambutol
#11
Georgi Slavchev, Lilia Michailova, Nadya Markova
OBJECTIVE/BACKGROUND: Cell wall-deficient bacterial forms (L-forms) may occur along with resistance to factors that trigger their appearance. It is of interest to study the relationship between the L-form transformation of Mycobacterium tuberculosis and the exhibition of drug tolerance to ethambutol (EMB), an inhibitor of cell wall synthesis. METHODS: L-form variant was produced from a sensitive EMB strain of M. tuberculosis through a cryogenic stress treatment protocol and was subsequently cultivated in Middlebrook 7H9 semisolid medium, containing EMB in a minimal inhibitory concentration of 2mg/L...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27930927/arsenic-affects-the-production-of-glucosinolate-thiol-and-phytochemical-compounds-a-comparison-of-two-brassica-cultivars
#12
Chandana Pandey, Rehna Augustine, Medha Panthri, Ismat Zia, Naveen C Bisht, Meetu Gupta
Arsenic (As), a non-essential metalloid, severely affects the normal functioning of plants, animals and humans. Plants play a crucial role in metabolic, physiological and numerous detoxification mechanisms to cope up with As induced stress. This study aimed to examine the differential response in two Brassica juncea cultivars, Varuna and Pusa Jagannath (PJn) exposed to different doses of As (50, 150, 300 μM) for 48 h duration. Change in morphological traits, concentration of individual as well as total GSL, sulfur related thiol proteins, sulfur content, and phytochemicals were analyzed in both cultivars...
November 30, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27930810/alamandine-abrogates-neutrophil-degranulation-in-atherosclerotic-mice
#13
Analina R Da Silva, Sébastien Lenglet, Federico Carbone, Fabienne Burger, Aline Roth, Luca Liberale, Aldo Bonaventura, Franco Dallegri, Nikolaos Stergiopulos, Robson A S Santos, François Mach, Rodrigo A Fraga-Silva, Fabrizio Montecucco
Neutrophil-mediated inflammation was recently identified as an active contributor to athero-progression. Therapeutic strategies inhibiting neutrophil degranulation or recruitment were hypothesized to positively impact on plaque vulnerability. In this study, we investigated whether treatment with the recently discovered agonist of the Mas-related G-coupled receptor type D (MrgD) alamandine would impact on neutrophil degranulation in vivo and in vitro MATERIALS AND METHODS: Fifteen-week old ApoE-/- mice were fed with a Western-type diet for an additional 11 weeks...
December 8, 2016: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27929393/xylobiose-an-alternative-sweetener-ameliorates-diabetes-related-metabolic-changes-by-regulating-hepatic-lipogenesis-and-mir-122a-33a-in-db-db-mice
#14
Eunjin Lim, Ji Ye Lim, Eunju Kim, Yoo-Sun Kim, Jae-Ho Shin, Pu Reum Seok, Sangwon Jung, Sang-Ho Yoo, Yuri Kim
Type 2 diabetes is a major public health concern worldwide. Xylobiose (XB) consists of two molecules of d-xylose and is a major disaccharide in xylooligosaccharides that are used as prebiotics. We hypothesized that XB could regulate diabetes-related metabolic and genetic changes via microRNA expression in db/db mice. For six weeks, C57BL/KsJ-db/db mice received 5% XB as part of the total sucrose content of their diet. XB supplementation improved glucose tolerance with reduced levels of OGTT AUC, fasting blood glucose, HbA1c, insulin, and HOMA-IR...
December 5, 2016: Nutrients
https://www.readbyqxmd.com/read/27929271/hormone-therapy-and-other-treatments-for-symptoms-of-menopause
#15
D Ashley Hill, Mark Crider, Susan R Hill
The results of large clinical trials have led physicians and patients to question the safety of hormone therapy for menopause. In the past, physicians prescribed hormone therapy to improve overall health and prevent cardiac disease, as well as for symptoms of menopause. Combined estrogen/progestogen therapy, but not estrogen alone, increases the risk of breast cancer when used for more than three to five years. Therefore, in women with a uterus, it is recommended that physicians prescribe combination therapy only to treat menopausal symptoms such as vasomotor symptoms (hot flashes) and vaginal atrophy, using the smallest effective dosage for the shortest possible duration...
December 1, 2016: American Family Physician
https://www.readbyqxmd.com/read/27929044/salt-tolerance-during-germination-and-seedling-growth-of-wild-wheat-aegilops-tauschii-and-its-impact-on-the-species-range-expansion
#16
Daisuke Saisho, Shigeo Takumi, Yoshihiro Matsuoka
Adaptation to edaphic stress may have a key role in plant species range expansion. Aegilops tauschii Coss., the common wheat's D-genome progenitor native to the Transcaucasus-Middle East region, is a good model to study the relationships between soil salinity and plant distributions: one of its intraspecific sublineages, TauL1b, drove the long-distance eastward expansion of this species range reaching semi-arid-central Asia. Salt tolerance during germination and seedling growth was evaluated in 206 Ae. tauschii accessions by treating seeds with NaCl solutions differing in concentrations...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27928897/intracellular-metabolite-profiling-of-saccharomyces-cerevisiae-evolved-under-furfural
#17
Young Hoon Jung, Sooah Kim, Jungwoo Yang, Jin-Ho Seo, Kyoung Heon Kim
Furfural, one of the most common inhibitors in pre-treatment hydrolysates, reduces the cell growth and ethanol production of yeast. Evolutionary engineering has been used as a selection scheme to obtain yeast strains that exhibit furfural tolerance. However, the response of Saccharomyces cerevisiae to furfural at the metabolite level during evolution remains unknown. In this study, evolutionary engineering and metabolomic analyses were applied to determine the effects of furfural on yeasts and their metabolic response to continuous exposure to furfural...
December 8, 2016: Microbial Biotechnology
https://www.readbyqxmd.com/read/27927999/elevated-temperature-drives-a-shift-from-selfing-to-outcrossing-in-the-insect-pollinated-legume-faba-bean-vicia-faba
#18
Jacob Bishop, Hannah E Jones, Donal M O'Sullivan, Simon G Potts
Climate change can threaten the reproductive success of plants, both directly, through physiological damage during increasingly extreme weather events, and indirectly, through disruption of plant-pollinator interactions. To explore how plant-pollinator interactions are modified by extreme weather, we exposed faba bean (Vicia faba) plants to elevated temperature for 5 d during flowering, simulating a heatwave. We then moved the plants to flight cages with either bumblebees or no pollinators, or to two field sites, where plants were enclosed in mesh bags or pollinated by wild insect communities...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27927997/genetic-diversity-and-genomic-strategies-for-improving-drought-and-waterlogging-tolerance-in-soybeans
#19
REVIEW
Babu Valliyodan, Heng Ye, Li Song, MacKensie Murphy, J Grover Shannon, Henry T Nguyen
Drought and its interaction with high temperature are the major abiotic stress factors affecting soybean yield and production stability. Ongoing climate changes are anticipated to intensify drought events, which will further impact crop production and food security. However, excessive water also limits soybean production. The success of soybean breeding programmes for crop improvement is dependent on the extent of genetic variation present in the germplasm base. Screening for natural genetic variation in drought- and flooding tolerance-related traits, including root system architecture, water and nitrogen-fixation efficiency, and yield performance indices, has helped to identify the best resources for genetic studies in soybean...
December 7, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27927623/metabolic-and-functional-characterization-of-effects-of-developmental-temperature-in-drosophila-melanogaster
#20
Mads F Schou, Torsten Nygaard Kristensen, Anders Pedersen, Goran B Karlsson, Volker Loeschcke, Anders Malmendal
The ability of ectotherms to respond to changes in their thermal environment through plastic mechanisms is central to their adaptive capability. However, we still lack knowledge on physiological and functional responses by which ectotherms acclimate to temperatures during development, and in particular, how physiological stress at extreme temperatures may counteract beneficial acclimation responses at benign temperatures. We exposed Drosophila melanogaster to ten developmental temperatures covering their entire permissible temperature range...
December 7, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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