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https://www.readbyqxmd.com/read/28214372/canonical-and-cellular-pathways-timing-gamete-release-in-acropora-digitifera-okinawa-japan
#1
Y Rosenberg, T Doniger, S Harii, F Sinniger, O Levy
Natural light cycles are important for synchronizing behavioral and physiological rhythms over varying time-periods in both plants and animals. An endogenous clock, regulated by positive and negative elements, interacting in feedback loops, control these rhythms. Many corals exhibit diel cycles of polyp expansion and contraction entrained by solar light patterns and monthly cycles of spawning or planulation that correspond to nocturnal lunar light cycles. However, despite considerable interest in studies of coral reproduction, there is currently not enough molecular information about the cellular pathways involved with synchronizing spawning/planulation in broadcast spawners and brooders...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28212396/plants-promote-mating-and-dispersal-of-the-human-pathogenic-fungus-cryptococcus
#2
Deborah J Springer, Rajinikanth Mohan, Joseph Heitman
Infections due to Cryptococcus are a leading cause of fungal infections worldwide and are acquired as a result of environmental exposure to desiccated yeast or spores. The ability of Cryptococcus to grow, mate, and produce infectious propagules in association with plants is important for the maintenance of the genetic diversity and virulence factors important for infection of animals and humans. In the Western United States and Canada, Cryptococcus has been associated with conifers and tree species other than Eucalyptus; however, to date Cryptococcus has only been studied on live Arabidopsis thaliana, Eucalyptus sp...
2017: PloS One
https://www.readbyqxmd.com/read/28212314/a-gin4-like-protein-kinase-gil1-involvement-in-hyphal-growth-asexual-development-and-pathogenesis-in-fusarium-graminearum
#3
Dan Yu, Shijie Zhang, Xiaoping Li, Jin-Rong Xu, Zachary Schultzhaus, Qiaojun Jin
Fusarium graminearum is the main causal agent of Fusarium head blight (FHB) on wheat and barley. In a previous study, a GIN4-like protein kinase gene, GIL1, was found to be important for plant infection and sexual reproduction. In this study we further characterized the functions of GIL1 kinase in different developmental processes. The Δgil1 mutants were reduced in growth, conidiation, and virulence, and formed whitish and compact colonies. Although phialide formation was rarely observed in the mutants, deletion of GIL1 resulted in increased hyphal branching and increased tolerance to cell wall and cell membrane stresses...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28211485/association-of-female-reproductive-factors-with-hypertension-diabetes-and-lqtc-in-chinese-women
#4
Bayi Xu, Yequn Chen, Jianping Xiong, Nan Lu, Xuerui Tan
The association of female reproductive factors (FRFs) with cardiovascular risk factors among different population was variable and inconsistent. The objective of this study was to examine the association between FRFs and hypertension, type 2 diabetes mellitus (DM), and long heart-rate-corrected QT interval (LQTc) in Chinese post-menopausal women (Post-MW). A total of 8046 Post-MW from the China Chaoshan Biobank Cohort Study were included for analysis. Logistic regression and general linear regression models were used to estimate the association between FRFs and hypertension, DM, and LQTc...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28208089/low-dose-toxicity-of-biogenic-silver-nanoparticles-fabricated-by-swertia-chirata-on-root-tips-and-flower-buds-of-allium-cepa
#5
Nirlipta Saha, S Dutta Gupta
Chemically synthesized silver nanoparticles (chem-AgNPs) have been assessed extensively to show adverse effects on plant cells but the role of biologically synthesized nanoparticles (bio-AgNPs) at lower concentrations and their toxicological impact on plant cells have not been sufficiently studied. In this study, bio-AgNPs were prepared using aqueous leaf extracts of Swertia chirata. This AgNPs showed absorption peak at 440nm of the visible spectrum. TEM analysis revealed that the average size of AgNPs were 20nm and mainly spherical in shape...
February 9, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28207889/genetic-variation-of-maturity-groups-and-four-e-genes-in-the-chinese-soybean-mini-core-collection
#6
Jicun Li, Xiaobo Wang, Wenwen Song, Xinyang Huang, Jing Zhou, Haiyan Zeng, Shi Sun, Hongchang Jia, Wenbin Li, Xinan Zhou, Suzhen Li, Pengyin Chen, Cunxiang Wu, Yong Guo, Tianfu Han, Lijuan Qiu
The mini core collection (MCC) has been established by streamlining core collection (CC) chosen from China National Genebank including 23,587 soybean (Glycine max) accessions by morphological traits and simple sequence repeat (SSR) markers. Few studies have been focused on the maturity that has been considered as one of the most critical traits for the determination of the adaptation-growing region of the soybean. In the current study, two hundred and ninty-nine accessions of MCC planted for two years at four locations namely in Heihe, Harbin, Jining and Wuhan cities in China were used to assess the variation of maturity in MCC and identify the integrated effect of 4 E loci on flowering and maturity time in soybean...
2017: PloS One
https://www.readbyqxmd.com/read/28205516/a-viral-protease-relocalizes-in-the-presence-of-the-vector-to-promote-vector-performance
#7
Aurélie Bak, Andrea L Cheung, Chunling Yang, Steven A Whitham, Clare L Casteel
Vector-borne pathogens influence host characteristics relevant to host-vector contact, increasing pathogen transmission and survival. Previously, we demonstrated that infection with Turnip mosaic virus, a member of one of the largest families of plant-infecting viruses, increases vector attraction and reproduction on infected hosts. These changes were due to a single viral protein, NIa-Pro. Here we show that NIa-Pro responds to the presence of the aphid vector during infection by relocalizing to the vacuole...
February 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28203721/importance-of-whole-plant-biomass-allocation-and-reproductive-timing-to-habitat-differentiation-across-the-north-american-sunflowers
#8
Chase M Mason, Eric W Goolsby, Kaleigh E Davis, Devon V Bullock, Lisa A Donovan
No abstract text is available yet for this article.
February 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28203244/pistil-transcriptome-analysis-to-disclose-genes-and-gene-products-related-to-aposporous-apomixis-in-hypericum-perforatum-l
#9
Giulio Galla, Sara Zenoni, Linda Avesani, Lothar Altschmied, Paride Rizzo, Timothy F Sharbel, Gianni Barcaccia
Unlike sexual reproduction, apomixis encompasses a number of reproductive strategies, which permit maternal genome inheritance without genetic recombination and syngamy. The key biological features of apomixis are the circumvention of meiosis (i.e., apomeiosis), the differentiation of unreduced embryo sacs and egg cells, and their autonomous development in functional embryos through parthenogenesis, and the formation of viable endosperm either via fertilization-independent means or following fertilization with a sperm cell...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28202499/dietary-phytochemical-intake-from-foods-and-health-outcomes-a-systematic-review-protocol-and-preliminary-scoping
#10
Yasmine C Probst, Vivienne X Guan, Katherine Kent
INTRODUCTION: Dietary phytochemicals are found in plant-based foods such as fruits, vegetables and grains and may be categorised in a nested hierarchical manner with many hundred individual phytochemicals identified to date. To associate phytochemical intakes with positive health outcomes, a fundamental step is to accurately estimate the dietary phytochemical intake from foods reported. The purpose of this systematic review protocol is to describe the process to be undertaken to summarise the evidence for food-based dietary phytochemical intakes and health outcomes for adults...
February 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28197155/dissecting-the-biochemical-and-transcriptomic-effects-of-a-locally-applied-heat-treatment-on-developing-cabernet-sauvignon-grape-berries
#11
Fatma Lecourieux, Christian Kappel, Philippe Pieri, Justine Charon, Jérémy Pillet, Ghislaine Hilbert, Christel Renaud, Eric Gomès, Serge Delrot, David Lecourieux
Reproductive development of grapevine and berry composition are both strongly influenced by temperature. To date, the molecular mechanisms involved in grapevine berries response to high temperatures are poorly understood. Unlike recent data that addressed the effects on berry development of elevated temperatures applied at the whole plant level, the present work particularly focuses on the fruit responses triggered by direct exposure to heat treatment (HT). In the context of climate change, this work focusing on temperature effect at the microclimate level is of particular interest as it can help to better understand the consequences of leaf removal (a common viticultural practice) on berry development...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28192727/ecotoxicological-assessments-show-sucralose-and-fluoxetine-affect-the-aquatic-plant-lemna-minor
#12
Cherisse Amy-Sagers, Keith Reinhardt, Danelle M Larson
Pharmaceuticals and personal care products (PPCP) are prevalent in aquatic systems, yet the fate and impacts on aquatic plants needs quantification for many compounds. We measured and detected sucralose (an artificial sweetener), fluoxetine (an antidepressant), and other PPCP in the Portneuf River in Idaho, USA, where Lemna minor (an aquatic plant in the environment and used in ecotoxicology studies) naturally occurs. Sucralose was hypothesized to negatively affect photosynthesis and growth of L. minor because sucralose is a chlorinated molecule that may be toxic or unusable for plant metabolism...
January 19, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28188590/pesticide-stress-on-plants-negatively-affects-parasitoid-fitness-through-a-bypass-of-their-phytophage-hosts
#13
Andries A Kampfraath, Daniel Giesen, Cornelis A M van Gestel, Cécile Le Lann
Pesticides taken up by plants from the soil or interstitial (pore) water can cascade to higher trophic levels, which are expected to be more affected due to cumulative bottom-up effects. Knowledge about the impact of indirect exposure to pesticides on non-target terrestrial trophic chains, however, is still lacking. Therefore, we examined the direct and indirect effects of three concentrations of the herbicide 2,6-dichlorobenzonitrile (DCBN) and an insecticide with a similar molecular structure (1,4-dichlorobenzene, DCB) on the fitness traits of a tritrophic system: the wheat plant Triticum aestivum, the aphid Sitobion avenae and its specialist parasitoid Aphidius rhopalosiphi...
February 10, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28178203/male-psyllids-differentially-learn-in-the-context-of-copulation
#14
Dara G Stockton, Xavier Martini, Lukasz L Stelinski
In the Asian citrus psyllid, Diaphorina citri Kuwayama, stimulatory cuticular hydrocarbons act as sex pheromone attractants. Male psyllids locate aggregations of females using those olfactory cues, as well as vibrational communication on the plant surface. Although previous research has indicated that learning plays a role in modulating female reproductive behaviors in psyllids, it is unknown whether males similarly use learning to increase the likelihood of copulatory success. We used an olfactometer-based bio-assay to study the effects of experience on male response to female odor...
February 7, 2017: Insects
https://www.readbyqxmd.com/read/28176007/functional-characterization-of-agamous-subfamily-members-from-cotton-during-reproductive-development-and-in-response-to-plant-hormones
#15
Stéfanie Menezes de Moura, Sinara Artico, Cássio Lima, Sarah Muniz Nardeli, Ana Berbel, Osmundo Brilhante Oliveira-Neto, Maria Fátima Grossi-de-Sá, Cristina Ferrándiz, Francisco Madueño, Márcio Alves-Ferreira
Expression analysis of the AG -subfamily members from G. hirsutum during flower and fruit development. Reproductive development in cotton, including the fruit and fiber formation, is a complex process; it involves the coordinated action of gene expression regulators, and it is highly influenced by plant hormones. Several studies have reported the identification and expression of the transcription factor family MADS-box members in cotton ovules and fibers; however, their roles are still elusive during the reproductive development in cotton...
February 7, 2017: Plant Reproduction
https://www.readbyqxmd.com/read/28174623/expression-patterns-of-passiflora-edulis-apetala1-fruitfull-homologues-shed-light-onto-tendril-and-corona-identities
#16
Livia C T Scorza, Jose Hernandes-Lopes, Gladys F A Melo-de-Pinna, Marcelo C Dornelas
BACKGROUND: Passiflora (passionflowers) makes an excellent model for studying plant evolutionary development. They are mostly perennial climbers that display axillary tendrils, which are believed to be modifications of the inflorescence. Passionflowers are also recognized by their unique flower features, such as the extra whorls of floral organs composed of corona filaments and membranes enclosing the nectary. Although some work on Passiflora organ ontogeny has been done, the developmental identity of both Passiflora tendrils and the corona is still controversial...
2017: EvoDevo
https://www.readbyqxmd.com/read/28174047/gammarus-fossarum-as-a-sensitive-tool-to-reveal-residual-toxicity-of-treated-wastewater-effluents
#17
Adriana Wigh, Olivier Geffard, Khedidja Abbaci, Adeline Francois, Patrice Noury, Alexandre Bergé, Emmanuelle Vulliet, Bruno Domenjoud, Adriana Gonzalez-Ospina, Sylvie Bony, Alain Devaux
Wastewater treatment plants (WWTPs) are one of the main sources of freshwater pollution eventually resulting in adverse effects in aquatic organisms. Treated effluents can contain many micropollutants at concentrations often below the limit of chemical quantification. On a regulatory basis, WWTP effluents have to be non-toxic to the aquatic environment, wherefore not only chemical abatement but also ecotoxicological evaluation through relevant bioassays is required. Standardized bioassays currently used are often not sensitive enough to reveal a residual toxicity in treated effluents...
February 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28167368/identification-and-expression-analysis-of-11-subtilase-genes-during-natural-and-induced-senescence-of-barley-plants
#18
Irma N Roberts, Cintia G Veliz, María Victoria Criado, Ana Signorini, Ester Simonetti, Carla Caputo
Subtilases are one of the largest groups of the serine protease family and are involved in many aspects of plant development including senescence. In wheat, previous reports demonstrate an active participation of two senescence-induced subtilases, denominated P1 and P2, in nitrogen remobilization during whole plant senescence. The aim of the present study was to examine the participation of subtilases in senescence-associated proteolysis of barley leaves while comparing different senescence types. With this purpose, subtilase enzymatic activity, immunodetection with a heterologous antiserum and gene expression of 11 subtilase sequences identified in barley databases by homology to P1 were analyzed in barley leaves undergoing dark-induced or natural senescence at the vegetative or reproductive growth phase...
January 19, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28166730/transcriptome-analysis-reveals-the-complexity-of-alternative-splicing-regulation-in-the-fungus-verticillium-dahliae
#19
Lirong Jin, Guanglin Li, Dazhao Yu, Wei Huang, Chao Cheng, Shengjie Liao, Qijia Wu, Yi Zhang
BACKGROUND: Alternative splicing (AS) regulation is extensive and shapes the functional complexity of higher organisms. However, the contribution of alternative splicing to fungal biology is not well studied. RESULTS: This study provides sequences of the transcriptomes of the plant wilt pathogen Verticillium dahliae, using two different strains and multiple methods for cDNA library preparations. We identified alternatively spliced mRNA isoforms in over a half of the multi-exonic fungal genes...
February 6, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28166541/identification-and-expression-profile-analysis-of-odorant-binding-protein-and-chemosensory-protein-genes-in-bemisia-tabaci-med-by-head-transcriptome
#20
Ran Wang, Fengqi Li, Wei Zhang, Xiaoman Zhang, Cheng Qu, Guillaume Tetreau, Lujuan Sun, Chen Luo, Jingjiang Zhou
Odorant binding proteins (OBPs) and chemosensory proteins (CSPs) of arthropods are thought to be involved in chemical recognition which regulates pivotal behaviors including host choice, copulation and reproduction. In insects, OBPs and CSPs located mainly in the antenna but they have not been systematically characterized yet in Bemisia tabaci which is a cryptic species complex and could damage more than 600 plant species. In this study, among the 106,893 transcripts in the head assembly, 8 OBPs and 13 CSPs were identified in B...
2017: PloS One
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