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PloS one
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7991-2009
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2009 v.4 no.2
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- 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
- https://doi.org/10.1371/journal.pone.0004481
- 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
- https://doi.org/10.1371/journal.pone.0004601
- 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
- https://doi.org/10.1371/journal.pone.0004606
- 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
- https://doi.org/10.1371/journal.pone.0004422
- 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
- https://doi.org/10.1371/journal.pone.0004633
- 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
- https://doi.org/10.1371/journal.pone.0004448
- 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
- https://doi.org/10.1371/journal.pone.0004646
- 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
- https://doi.org/10.1371/journal.pone.0004462
- 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
- https://doi.org/10.1371/journal.pone.0004335
- 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
- https://doi.org/10.1371/journal.pone.0004562
- 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
- https://doi.org/10.1371/journal.pone.0004358
- 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
- https://doi.org/10.1371/journal.pone.0004461
- 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
- https://doi.org/10.1371/journal.pone.0004603
- 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
- https://doi.org/10.1371/journal.pone.0004567
- 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
- https://doi.org/10.1371/journal.pone.0004564
- 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
- https://doi.org/10.1371/journal.pone.0004336
- 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
- https://doi.org/10.1371/journal.pone.0004502
- 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
- https://doi.org/10.1371/journal.pone.0004598
- 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
- https://doi.org/10.1371/journal.pone.0004441
- 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
- https://doi.org/10.1371/journal.pone.0004493