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You searched for: Journal name PloS one Remove constraint Journal name: PloS one Publication year rev 7991-2009 Remove constraint Publication year rev: 7991-2009 Source 2009 v.4 no.2 Remove constraint Source: 2009 v.4 no.2
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1. Age and Diet Affect Gene Expression Profile in Canine Skeletal Muscle

Author:
Middelbos, Ingmar S.; Vester, Brittany M.; Karr-Lilienthal, Lisa K.; Schook, Lawrence B.; Swanson, Kelly S.
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
messenger RNA; metabolism; muscle development; feeds; microarray technology; nutrition-genotype interaction; dogs; skeletal muscle; gene expression; cell cycle; animal age
Abstract:
... We evaluated gene transcription in canine skeletal muscle (biceps femoris) using microarray analysis to identify effects of age and diet on gene expression. Twelve female beagles were used (six 1-year olds and six 12-year olds) and they were fed one of two experimental diets for 12 months. One diet contained primarily plant-based protein sources (PPB), whereas the second diet contained primarily a ...
DOI:
10.1371/journal.pone.0004481
PubMed:
19221602
PubMed Central:
PMC2637985

2. Biogeography of Photosynthetic Light-Harvesting Genes in Marine Phytoplankton

Author:
Bibby, Thomas S.; Zhang, Yinan; Chen, Min
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Prochlorococcus; Synechococcus; genes; light harvesting complex; biogeography; oceans; Atlantic Ocean; Pacific Ocean; Gulf of Mexico
Abstract:
... Background: Photosynthetic light-harvesting proteins are the mechanism by which energy enters the marine ecosystem. The dominant prokaryotic photoautotrophs are the cyanobacterial genera Prochlorococcus and Synechococcus that are defined by two distinct light-harvesting systems, chlorophyll-bound protein complexes or phycobilin-bound protein complexes, respectively. Here, we use the Global Ocean S ...
DOI:
10.1371/journal.pone.0004601
PubMed:
19240807
PubMed Central:
PMC2644788

3. Green Tea Polyphenols Rescue of Brain Defects Induced by Overexpression of DYRK1A

Author:
Guedj, Fayçal; Sébrié, Catherine; Rivals, Isabelle; Ledru, Aurelie; Paly, Evelyne; Bizot, Jean C.; Smith, Desmond; Rubin, Edward; Gillet, Brigitte; Arbones, Mariona; Delabar, Jean M.
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
green tea; polyphenols; neuroprotective effect; gene overexpression; protein kinases; brain; morphogenesis; volume; mice; transgenic animals
Abstract:
... Individuals with partial HSA21 trisomies and mice with partial MMU16 trisomies containing an extra copy of the DYRK1A gene present various alterations in brain morphogenesis. They present also learning impairments modeling those encountered in Down syndrome. Previous MRI and histological analyses of a transgenic mice generated using a human YAC construct that contains five genes including DYRK1A r ...
DOI:
10.1371/journal.pone.0004606
PubMed:
19242551
PubMed Central:
PMC2645681

4. IrrE, a Global Regulator of Extreme Radiation Resistance in Deinococcus radiodurans, Enhances Salt Tolerance in Escherichia coli and Brassica napus

Author:
Pan, Jie; Wang, Jin; Zhou, Zhengfu; Yan, Yongliang; Zhang, Wei; Lu, Wei; Ping, Shuzhen; Dai, Qilin; Yuan, Menglong; Feng, Bin; Hou, Xiaoguang; Zhang, Ying; Ma, Ruiqiang; Liu, Tingting; Feng, Lu; Wang, Lei
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Brassica napus; transgenic plants; Escherichia coli; genetically engineered microorganisms; gene transfer; genes; Deinococcus radiodurans; salt tolerance; gene overexpression
Abstract:
... Background: Globally, about 20% of cultivated land is now affected by salinity. Salt tolerance is a trait of importance to all crops in saline soils. Previous efforts to improve salt tolerance in crop plants have met with only limited success. Bacteria of the genus Deinococcus are known for their ability to survive highly stressful conditions, and therefore possess a unique pool of genes conferrin ...
DOI:
10.1371/journal.pone.0004422
PubMed:
19204796
PubMed Central:
PMC2635966

5. Molecular Adaptation of rbcL in the Heterophyllous Aquatic Plant Potamogeton

Author:
Iida, Satoko; Miyagi, Atsuko; Aoki, Seishiro; Ito, Motomi; Kadono, Yasuro; Kosuge, Keiko
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
ribulose-bisphosphate carboxylase; chloroplast DNA; Potamogeton; genes; nucleotide sequences; natural selection; aquatic plants
Abstract:
... Background: Heterophyllous aquatic plants show marked phenotypic plasticity. They adapt to environmental changes by producing different leaf types: submerged, floating and terrestrial leaves. By contrast, homophyllous plants produce only submerged leaves and grow entirely underwater. Heterophylly and submerged homophylly evolved under selective pressure modifying the species-specific optima for ph ...
DOI:
10.1371/journal.pone.0004633
PubMed:
19247501
PubMed Central:
PMC2646136

6. Phytoliths Analysis for the Discrimination of Foxtail Millet (Setaria italica) and Common Millet (Panicum miliaceum)

Author:
Lu, Houyuan; Zhang, Jianping; Wu, Naiqin; Liu, Kam-biu; Xu, Deke; Li, Quan
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Setaria italica; Panicum miliaceum; millets; food grains; phytoliths; seeds
Abstract:
... Foxtail millet (Setaria italica) and Common millet (Panicum miliaceum) are the oldest domesticated dry farming crops in Eurasia. Identifying these two millets in the archaeobotanical remains are still problematic, especially because the millet grains preserve only when charred. Phytoliths analysis provides a viable method for identifying this important crop. However, to date, the identification of ...
DOI:
10.1371/journal.pone.0004448
PubMed:
19212442
PubMed Central:
PMC2636886

7. Role of Human-Mediated Dispersal in the Spread of the Pinewood Nematode in China

Author:
Robinet, Christelle; Roques, Alain; Pan, Hongyang; Fang, Guofei; Ye, Jianren; Zhang, Yanzhuo; Sun, Jianghua
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Bursaphelenchus xylophilus; introduced species; invasive species; Monochamus alternatus; insect vectors; geographical distribution; anthropogenic activities; humans; population density; China
Abstract:
... Background: Intensification of world trade is responsible for an increase in the number of alien species introductions. Human-mediated dispersal promotes not only introductions but also expansion of the species distribution via long-distance dispersal. Thus, understanding the role of anthropogenic pathways in the spread of invading species has become one of the most important challenges nowadays. ...
DOI:
10.1371/journal.pone.0004646
PubMed:
19247498
PubMed Central:
PMC2645708

8. Short Lag Times for Invasive Tropical Plants: Evidence from Experimental Plantings in Hawai'i

Author:
Daehler, Curtis C.
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
plant ecology; tropics; longitudinal studies; invasive species; ecological invasion; Hawaii
Abstract:
... Background: The lag time of an invasion is the delay between arrival of an introduced species and its successful spread in a new area. To date, most estimates of lag times for plants have been indirect or anecdotal, and these estimates suggest that plant invasions are often characterized by lag times of 50 years or more. No general estimates are available of lag times for tropical plant invasions. ...
DOI:
10.1371/journal.pone.0004462
PubMed:
19223966
PubMed Central:
PMC2636889

9. Species-Specific Seed Dispersal in an Obligate Ant-Plant Mutualism

Author:
Youngsteadt, Elsa; Baca, Jeniffer Alvarez; Osborne, Jason; Schal, Coby
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Camponotus; seeds; Peperomia; mutualism; seed dispersal; Amazonia
Abstract:
... Throughout lowland Amazonia, arboreal ants collect seeds of specific plants and cultivate them in nutrient-rich nests, forming diverse yet obligate and species-specific symbioses called Neotropical ant-gardens (AGs). The ants depend on their symbiotic plants for nest stability, and the plants depend on AGs for substrate and nutrients. Although the AGs are limited to specific participants, it is un ...
DOI:
10.1371/journal.pone.0004335
PubMed:
19194502
PubMed Central:
PMC2632754

10. Tomato Lycopene Extract Prevents Lipopolysaccharide-Induced NF-κB Signaling but Worsens Dextran Sulfate Sodium-Induced Colitis in NF-κB(EGFP) Mice

Author:
Joo, Young-Eun; Karrasch, Thomas; Mühlbauer, Marcus; Allard, Brigitte; Narula, Acharan; Herfarth, Hans H.; Jobin, Christian
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
tomatoes; transcription factors; anti-inflammatory activity; lipopolysaccharides; inflammation; plant extracts; lycopene; gene expression; mice; splenocytes; intestinal mucosa; colitis; gene expression regulation; dextran; apoptosis
Abstract:
... Background: The impact of tomato lycopene extract (TLE) on intestinal inflammation is currently unknown. We investigated the effect of TLE on lipopolysaccharide (LPS)-induced innate signaling and experimental colitis. Methodology/Principal Findings: Mice were fed a diet containing 0.5 and 2% TLE or isoflavone free control (AIN-76). The therapeutic efficacy of TLE diet was assessed using dextran su ...
DOI:
10.1371/journal.pone.0004562
PubMed:
19234608
PubMed Central:
PMC2642995

11. A Filamentous Hemagglutinin-Like Protein of Xanthomonas axonopodis pv. citri, the Phytopathogen Responsible for Citrus Canker, Is Involved in Bacterial Virulence

Author:
Gottig, Natalia; Garavaglia, Betiana S.; Garofalo, Cecilia G.; Orellano, Elena G.; Ottado, Jorgelina
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
bacterial colonization; cell movement; biofilm; host-pathogen relationships; transporters; bacterial adhesion; bacterial diseases of plants; Citrus sinensis; bacterial proteins; Xanthomonas axonopodis pv. citri; cankers (plants); virulence
Abstract:
... Xanthomonas axonopodis pv. citri, the phytopathogen responsible for citrus canker has a number of protein secretion systems and among them, at least one type V protein secretion system belonging to the two-partner secretion pathway. This system is mainly associated to the translocation of large proteins such as adhesins to the outer membrane of several pathogens. Xanthomonas axonopodis pv. citri p ...
DOI:
10.1371/journal.pone.0004358
PubMed:
19194503
PubMed Central:
PMC2632755

12. A Plant-Derived Remedy for Repair of Infarcted Heart

Author:
Cheng, Lei; Chen, Hao; Yao, Xinsheng; Qi, Guoqing; Liu, Hongwei; Lee, Kwongman; Lee, Kaho; Zhang, Jieting; Chen, Shihui; Lin, Xiaoli; Zhao, Wenchao; Li, Jiankuan; Li, Ming
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
herbal medicines; Geum; medicinal properties; plant extracts; myocardium; myocardial infarction; stem cells; cell differentiation; rats
Abstract:
... Background: Myocardial infarction (MI) due to coronary artery disease remains one of the leading causes of premature death. Replacement of infarcted heart tissue with regenerating myocardium from endogenous progenitor pools or exogenously introduced stem cells remains a therapeutic ideal. Their impracticality mainly lies in their low efficiency in cardiogenic differentiation (CD). Our recent studi ...
DOI:
10.1371/journal.pone.0004461
PubMed:
19221596
PubMed Central:
PMC2637970

13. A Rice Gene of De Novo Origin Negatively Regulates Pathogen-Induced Defense Response

Author:
Xiao, Wenfei; Liu, Hongbo; Li, Yu; Li, Xianghua; Xu, Caiguo; Long, Manyuan; Wang, Shiping
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Oryza sativa; rice; genes; host-pathogen relationships; disease resistance; Xanthomonas oryzae pv. oryzae; blight; bacterial diseases of plants; salicylic acid; jasmonic acid
Abstract:
... How defense genes originated with the evolution of their specific pathogen-responsive traits remains an important problem. It is generally known that a form of duplication can generate new genes, suggesting that a new gene usually evolves from an ancestral gene. However, we show that a new defense gene in plants may evolve by de novo origination, resulting in sophisticated disease-resistant functi ...
DOI:
10.1371/journal.pone.0004603
PubMed:
19240804
PubMed Central:
PMC2643483

14. Disruption of Growth Hormone Receptor Prevents Calorie Restriction from Improving Insulin Action and Longevity

Author:
Bonkowski, Michael S.; Dominici, Fernando P.; Arum, Oge; Rocha, Juliana S.; Al Regaiey, Khalid A.; Westbrook, Reyhan; Spong, Adam; Panici, Jacob; Masternak, Michal M.; Kopchick, John J.; Bartke, Andrzej
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
low calorie diet; hormone receptors; somatotropin; mutants; mutation; longevity; insulin; hormonal regulation; liver; skeletal muscle; mice
Abstract:
... Most mutations that delay aging and prolong lifespan in the mouse are related to somatotropic and/or insulin signaling. Calorie restriction (CR) is the only intervention that reliably increases mouse longevity. There is considerable phenotypic overlap between long-lived mutant mice and normal mice on chronic CR. Therefore, we investigated the interactive effects of CR and targeted disruption or kn ...
DOI:
10.1371/journal.pone.0004567
PubMed:
19234595
PubMed Central:
PMC2639640

15. Ecological Adaptation of Wild Peach Palm, Its In Situ Conservation and Deforestation-Mediated Extinction in Southern Brazilian Amazonia

Author:
Clement, Charles R.; Santos, Ronaldo P.; Desmouliere, Sylvain J.M.; Ferreira, Evandro J.L.; Neto, João Tomé Farias
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Bactris gasipaes; plant adaptation; natural resource management; extinction; deforestation; habitat fragmentation; Brazil; Amazonia
Abstract:
... Background: The Arc of Fire across southern Amazonia seasonally attracts worldwide attention as forests are cut and burned for agricultural expansion. These forests contain numerous wild relatives of native South American crops, such as peach palm. Methodology/Principal Findings: Our prospecting expeditions examined critical areas for wild peach palm in the Arc of Fire in Mato Grosso, Pará, Maran ...
DOI:
10.1371/journal.pone.0004564
PubMed:
19238213
PubMed Central:
PMC2642997

16. Forest Structure and Roe Deer Abundance Predict Tick-Borne Encephalitis Risk in Italy

Author:
Rizzoli, Annapaola; Hauffe, Heidi C.; Tagliapietra, Valentina; Neteler, Markus; Rosà, Roberto
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Tick-borne encephalitis virus; risk assessment; tick-borne encephalitis; wildlife habitats; forests; Capreolus capreolus; animal ecology; disease transmission; human diseases
Abstract:
... Background: The Western Tick-borne encephalitis (TBE) virus often causes devastating or lethal disease. In Europe, the number of human TBE cases has increased dramatically over the last decade, risk areas are expanding and new foci are being discovered every year. The early localisation of new TBE foci and the identification of the main risk factors associated with disease emergence represent a pr ...
DOI:
10.1371/journal.pone.0004336
PubMed:
19183811
PubMed Central:
PMC2629566

17. Glucose and Auxin Signaling Interaction in Controlling Arabidopsis thaliana Seedlings Root Growth and Development

Author:
Mishra, Bhuwaneshwar S.; Singh, Manjul; Aggrawal, Priyanka; Laxmi, Ashverya
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Arabidopsis thaliana; plant development; glucose; seedlings; signal transduction; root growth; indole acetic acid
Abstract:
... Background: Plant root growth and development is highly plastic and can adapt to many environmental conditions. Sugar signaling has been shown to affect root growth and development by interacting with phytohormones such as gibberellins, cytokinin and abscisic acid. Auxin signaling and transport has been earlier shown to be controlling plant root length, number of lateral roots, root hair and root ...
DOI:
10.1371/journal.pone.0004502
PubMed:
19223973
PubMed Central:
PMC2637607

18. How Many Loci Does it Take to DNA Barcode a Crocus?

Author:
Seberg, Ole; Petersen, Gitte
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
Crocus; plant genetics; DNA; loci; genetic techniques and protocols; molecular systematics
Abstract:
... Background: DNA barcoding promises to revolutionize the way taxonomists work, facilitating species identification by using small, standardized portions of the genome as substitutes for morphology. The concept has gained considerable momentum in many animal groups, but the higher plant world has been largely recalcitrant to the effort. In plants, efforts are concentrated on various regions of the p ...
DOI:
10.1371/journal.pone.0004598
PubMed:
19240801
PubMed Central:
PMC2643479

19. Individual Recognition in Domestic Cattle (Bos taurus): Evidence from 2D-Images of Heads from Different Breeds

Author:
Coulon, Marjorie; Deputte, Bertrand L.; Heyman, Yvan; Baudoin, Claude
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
dairy cattle; cattle breeds; dairy breeds; animal behavior; social behavior; color; hairs; head; heifers
Abstract:
... Background: In order to maintain cohesion of groups, social animals need to process social information efficiently. Visual individual recognition, which is distinguished from mere visual discrimination, has been studied in only few mammalian species. In addition, most previous studies used either a small number of subjects or a few various views as test stimuli. Dairy cattle, as a domestic species ...
DOI:
10.1371/journal.pone.0004441
PubMed:
19212439
PubMed Central:
PMC2636880

20. Major Surface Glycoproteins of Insect Forms of Trypanosoma brucei Are Not Essential for Cyclical Transmission by Tsetse

Author:
Vassella, Erik; Oberle, Michael; Urwyler, Simon; Renggli, Christina Kunz; Studer, Erwin; Hemphill, Andrew; Fragoso, Cristina; Bütikofer, Peter; Brun, Reto; Roditi, Isabel
Source:
PloS one 2009 v.4 no.2 pp. -
ISSN:
1932-6203
Subject:
vector competence; Trypanosoma brucei; major surface glycoproteins; disease transmission; Glossina
Abstract:
... Procyclic forms of Trypanosoma brucei reside in the midgut of tsetse flies where they are covered by several million copies of glycosylphosphatidylinositol-anchored proteins known as procyclins. It has been proposed that procyclins protect parasites against proteases and/or participate in tropism, directing them from the midgut to the salivary glands. There are four different procyclin genes, each ...
DOI:
10.1371/journal.pone.0004493
PubMed:
19223969
PubMed Central:
PMC2637416