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Meng Lai-Sheng LS School of Life Sciences, University of Science and Technology of China, Hefei, Anhui Province, 230027, PR, - - 2014
ANGUSTIFOLIA3 (AN3), a transcription coactivator, is implicated in modulating cell proliferation. In this study, I found that AN3 is a novel regulator of anthocyanin biosynthesis and light-induced root elongation. Seedlings and seeds lacking AN3 activity presented significantly reduced anthocyanin accumulation and light-induced root elongation, whereas those of transgenic plants harboring ...
Thwe Aye Aye AA Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 305-764, Korea, - - 2014
Differential expression patterns of flavonoid biosynthetic pathway genes in the hairy roots of tartary buckwheat cultivars "Hokkai T8" and "Hokkai T10" were studied over a time course of the light-dark cycle. The Agrobacterium rhizogenes-mediated transformation system was applied for inducing hairy roots. Further, a total of six phenolic compounds and ...
Ramaswami Geetha G Centre for Ecological Sciences and 2Divecha Centre for Climate Change, Indian Institute of Science, Bangalore 560 012, - - 2014
Streams are periodically disturbed due to flooding, act as edges between habitats and also facilitate the dispersal of propagules, thus being potentially more vulnerable to invasions than adjoining regions. We used a landscape-wide transect-based sampling strategy and a mixed effects modelling approach to understand the effects of distance from stream, ...
Lavi Renana R Department of Molecular Biology and Ecology of Plants, The Botanical Garden, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978, - - 2014
Pollinator-mediated selection is a major evolutionary driver of floral traits; yet, such selection has rarely been tested for floral extreme traits. The Oncocyclus irises have exceptionally large, dark-colored flowers, associated with night-sheltering pollination and heat reward by the dark flowers. We quantified phenotypic selection on stem length, floral size and ...
Takeuchi Tomomi T Department of Plant Biology, Michigan State University, East Lansing, MI 48824, - - 2014
In Arabidopsis, the circadian clock regulates UV-B-mediated changes in gene expression. Here it is shown that circadian clock components are able to inhibit UV-B-induced gene expression in a gene-by-gene-specific manner and act downstream of the initial UV-B sensing by COP1 (CONSTITUTIVE PHOTOMORPHOGENIC 1) and UVR8 (UV RESISTANCE LOCUS 8). For ...
Glowacz Marcin M Crop and Environment Sciences Department, Harper Adams University, Newport, TF10 8NB, - - 2014
Quality management in the fresh produce industry is an important issue. Spinach is exposed to various adverse conditions (e.g. temp, light, etc.) within the supply chain. The experiments were conducted to investigate the effect of light conditions (dark, low intensity light (LL) and high intensity light (HL)) and photoperiod (6 h ...
Hou Fei F State Key Laboratory of Crop Biology; Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, - - 2014
The rapid induction of photosynthesis is critical for plants under light-fleck environment. Most previous researches about photosynthetic induction focused on single leaf, but they didn't consider systemic integrity of plant. Here, we verified whether systemic signaling is involved in photosynthetic induction. Rumex K-1 (Rumex patientia × Rumex tianschaious) plants were ...
Huang Yu Y a Human Factors Research Unit, Institute of Sound and Vibration Research , University of Southampton , Southampton , - - 2014
This study investigated the prediction of the discomfort caused by simultaneous noise and vibration from the discomfort caused by noise and the discomfort caused by vibration when they are presented separately. A total of 24 subjects used absolute magnitude estimation to report their discomfort caused by seven levels of noise ...
Ciszak Kamil K Institute of Physics; Faculty of Physics; Astronomy and Informatics; Nicolaus Copernicus University; Toruń, - - 2014
Systemic acquired acclimation (SAA) is an important light acclimatory mechanism that depends on the global adjustments of non-photochemical quenching and chloroplast retrograde signaling. As the exact regulation of these processes is not known, we measured time-resolved fluorescence of chlorophyll a in Arabidopsis thaliana leaves exposed to excess light, in leaves ...
Ma Ziyu Z School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195-2100, - - 2014
Generally 'shade tolerance' refers to the capacity of a plant to exist at low light levels but characteristics of shade can vary and must be taken into account in defining the term. We studied Abies amabilis Dougl. ex J.Forbes and Tsuga heterophylla (Raf.) Sarg. under a forest canopy in the ...
Maurin Olivier O African Centre for DNA Barcoding, Department of Botany & Plant Biotechnology, University of Johannesburg, PO Box 524, Auckland Park, 2006, Johannesburg, Gauteng, South - - 2014
The origin of fire-adapted lineages is a long-standing question in ecology. Although phylogeny can provide a significant contribution to the ongoing debate, its use has been precluded by the lack of comprehensive DNA data. Here, we focus on the 'underground trees' (=geoxyles) of southern Africa, one of the most distinctive ...
Ryu Jeongeun J Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja Dong, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea; Center for Biofluid and Biomimic Research, Pohang University of Science and Technology (POSTECH), San 31, Hyoja Dong, Nam-Gu, Pohang, Gyeongbuk, 790-784, - - 2014
Dynamic changes in the spatial distribution of chloroplasts are essential for optimizing photosynthetic capacity under changing light conditions. Light-induced movement of chloroplasts has been widely investigated, but most studies were conducted on isolated tissues or protoplasts. In this study, a two-photon microscopy (TPM) system was adapted to monitor the intracellular ...
Fariñas Maria Dolores MD Sensors and Ultrasonic Technologies Department, Information and Physics Technologies Institute (ITEFI), Spanish National Research Council (CSIC), Madrid, - - 2014
Described here is the application of a technique based on the excitation, sensing and spectral analysis of thickness resonances of plant leaves using air-coupled and wide-band ultrasound pulses (150-900 kHz) to monitor variations in leaf properties caused by plant responses to different environmental stimuli, such as a sudden variation in light ...
Ouzounis Theoharis T Department of Chemical Engineering, Biotechnology, and Environmental Technology, University of Southern Denmark, Niels Bohrs Allé 1, Odense, Denmark. Electronic address: - - 2014
To investigate the effect of the light spectrum on photosynthesis, growth, and secondary metabolites Rosa hybrida 'Scarlet', Chrysanthemum morifolium 'Coral Charm', and Campanula portenschlagiana 'BluOne' were grown at 24/18°C day/night temperature under purpose-built LED arrays yielding approximately 200μmolm(-2)s(-1) at plant height for 16h per day. The four light treatments were ...
Hébert-Losier Kim K 1Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden; 2Research Unit EA4660, Culture Sport Health Society and Exercise Performance Health Innovation Platform, Franche-Comté University, Besançon, - - 2014
Orienteering athletes must adapt to running on various surfaces, with biomechanics likely contributing to performance. Here, our aims were to identify the impact of athletic status and of surface on the running biomechanics of orienteers. Seven elite and seven amateur male orienteers ran 20m on road, path, and forest surfaces ...
Sato Atsuko A Division of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, 060-0810, - - 2014
Gravitropism and phototropism of the primary inflorescence stems were examined in a dominant Aux/IAA mutant of Arabidopsis, axr2/iaa7, which did not display either tropism in hypocotyls. axr2-1 stems completely lacked gravitropism in the dark but slowly regained it in light condition. Though wild-type stems showed positive phototropism, axr2 stems displayed ...
Arbellay Estelle E Dendrolab.ch, Institute of Geological Sciences, University of Berne, Berne, Switzerland - - 2014
Fire scars have been widely used as proxies for the reconstruction of fire history; however, little is known about the impact of fire injury on wood anatomy. This study investigates changes in tracheid and ray traits in fire scars of Douglas fir (Pseudotsuga menziesii), western larch (Larix occidentalis) and ponderosa ...
Chen Tsu-Wei TW Institute of Horticultural Production Systems, Leibniz Universität Hannover, Herrenhäuser Straße 2, D-30419 Hannover, Germany - - 2014
Maximizing photosynthesis at the canopy level is important for enhancing crop yield, and this requires insights into the limiting factors of photosynthesis. Using greenhouse cucumber (Cucumis sativus) as an example, this study provides a novel approach to quantify different components of photosynthetic limitations at the leaf level and to upscale ...
Shen Weijun W College of Life Sciences, Nanjing Normal University, 1 Wenyuan Road, Nanjing, 210023, - - 2014
Previous studies have shown that exposure of Arabidopsis leaves to high light (HL) causes a systemic acquired acclimation (SAA) response in the vasculature. It has been postulated that C4-like photosynthesis in the leaf veins triggers this response via the Mehler reaction. To investigate this proposed connection and extend SAA to ...
O'Carrigan Andrew A School of Science and Health, University of Western Sydney, Penrith, 2751, NSW, - - 2014
Light spectrum affects the yield and quality of greenhouse tomato, especially over a prolonged period of monochromatic light treatments. Physiological and chemical analysis was employed to investigate the influence of light spectral (blue, green and red) changes on growth, photosynthesis, stomatal behaviour, leaf pigment, and micronutrient levels. We found that ...
Matzner Steven L SL Department of Biology, Augustana College, Sioux Falls, SD 57197, USA - - 2014
Two cultivars of Phaseolus vulgaris L. were grown under three light levels to determine if hydraulic acclimation to light occurs in herbaceous annuals and whether intraspecific trade-offs constrain hydraulic traits. Acclimation occurred in response to reduced light and included decreased stomatal density (SD) and increased specific leaf area (SLA). Reduced ...
Zhang Shuping S College of Life and Environment Sciences, Minzu University of China, Beijing 100081, China. Electronic address: - - 2014
The pervasiveness of anthropogenic light in urban environments has increased the exposure to light of many animals. Since photoperiod is a regulator of the timing of reproduction in most temperate region birds, such light sources could potentially change the timing of reproduction. We compared the luteinizing hormone (LH), testosterone (T), ...
Morrison K R KR Department of Tropical Conservation Biology & Environmental Science, University of Hawai'i Hilo, Hilo, HI, - - 2014
The importance of environmental gradients in the diversification of long-lived tree species is poorly understood. Two morphologically distinct varieties of the endemic Hawaiian tree, 'ōhi'a lehua (Metrosideros polymorpha), are the canopy dominants at alternate extremes of a successional gradient formed by the recurring disturbance of lava flows on east Hawai'i ...
Asahina Masashi M Department of Biosciences, Teikyo University, 1-1 Toyosatodai, Utsunomiya, Tochigi 320-8551, - - 2014
In this study the relationship between blue light- and brassinosteroid-enhanced leaf lamina bending and unrolling in rice was investigated. Twenty-four hours (h) irradiation with white or blue light increased endogenous brassinosteroid levels, especially those of typhasterol and castasterone, in aerial tissues of rice seedlings. There was an accompanying up-regulation of ...
Osada Noriyuki N Graduate School of Life Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan, - - 2014
The theory of optimal leaf N distribution predicts that the C gain of plants is maximized when the N content per unit area (N area) scales with light availability, but most previous studies have demonstrated that the N distribution is not proportional to light availability. In tall trees, the leaves ...
Casson Stuart A SA Department of Molecular Biology and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield S10 2TN, UK. Electronic address: - - 2014
Stomata are pores found on the surfaces of leaves, and they regulate gas exchange between the plant and the environment [1]. Stomatal development is highly plastic and is influenced by environmental signals [2]. Light stimulates stomatal development, and this response is mediated by plant photoreceptors [3-5], with the red-light photoreceptor ...
Chico José-Manuel JM Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Campus Universidad Autónoma, 28049 Madrid, - - 2014
Reduction of the red/far-red (R/FR) light ratio that occurs in dense canopies promotes plant growth to outcompete neighbors but has a repressive effect on jasmonate (JA)-dependent defenses. The molecular mechanism underlying this trade-off is not well understood. We found that the JA-related transcription factors MYC2, MYC3, and MYC4 are short-lived ...
Joseph Mary P MP 1 Biological Research Centre, H-6726-Szeged, - - 2014
Seed germination is controlled by environmental signals, including light and endogenous phytohormones. Abscisic acid (ABA) inhibits, whereas gibberellin (GA) promotes germination and early seedling development, respectively. Here we report that ZFP3, a nuclear C2H2 zinc finger protein acts as a negative regulator of ABA- suppressed germination. Accordingly, regulated over-expression of ...
Sejima Takehiro T Department of Biological and Environmental Science, Faculty of Agriculture, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, - - 2014
In the natural fields, the leaves of plants are exposed to the fluctuating light, as observed in sunfleck. The duration and frequency of sunfleck, which is caused by blowing the canopy, are in the ranges from 0.2 to 50 s, and from 0.004 to 1 Hz, respectively. Furthermore, more than ...
Nagai Shin S Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, 236-0001, Japan, - - 2014
We detected the spatio-temporal variability in the timing of start (SGS) and end of growing season (EGS) in Japan from 2003 to 2012 by analyzing satellite-observed daily green-red vegetation index with a 500-m spatial resolution. We also examined the characteristics of SGS and EGS timing in deciduous broadleaf and needleleaf ...
Li T T Horticultural Supply Chains, Wageningen University, PO Box 630, 6700AP Wageningen, The - - 2014
Background and AimsPlants use diffuse light more efficiently than direct light. However, experimental comparisons between diffuse and direct light have been obscured by co-occurring differences in environmental conditions (e.g. light intensity). This study aims to analyse the factors that contribute to an increase in crop photosynthesis in diffuse light and ...
Weerasinghe Lasantha K LK Division of Plant Sciences, Research School of Biology, Building 46, The Australian National University, Canberra, ACT 0200, - - 2014
We explored the impact of canopy position on leaf respiration (R) and associated traits in tree and shrub species growing in a lowland tropical rainforest in Far North Queensland, Australia. The range of traits quantified included: leaf R in darkness (RD) and in the light (RL; estimated using the Kok ...
Singh Manjul M National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, - - 2014
Directional growth of roots is a complex process that is modulated by various environmental signals. This work shows that presence of glucose (Glc) in the medium also extensively modulated seedling root growth direction. Glc modulation of root growth direction was dramatically enhanced by simultaneous brassinosteroid (BR) application. Glc enhanced BR ...
Vandenbussche Filip F Laboratory of Functional Plant Biology, Department of Physiology, Faculty of Sciences, Ghent University, B-9000 Ghent, - - 2014
Plants reorient their growth towards light to optimize photosynthetic light capture, a process known as phototropism. Phototropins are the photoreceptors essential for phototropic growth towards blue and ultraviolet-A (UV-A) light. Here we detail a phototropic response towards UV-B in etiolated Arabidopsis seedlings. We report that early differential growth is mediated ...
Kim Yeon Bok - - 2014
Chinese cabbage is one of the most important leafy vegetables widely used in East Asian cuisines. The glucosinolate (GSL) accumulation and transcript levels of 7 transcription factors (Dof1.1, IQD1-1, MYB28, MYB29, MYB34, MYB51, and MYB122, and their isoforms) involved in the biosynthesis of aliphatic and indolic glucosinolates (GSLs) were analyzed ...
Holmes Jason D JD Sensor Systems, Raytheon BBN Technologies, 10 Moulton St., Cambridge, MA 02375, - - 2014
Commercial, off-the-shelf (COTS) autonomous underwater vehicles (AUVs) are not usually designed to be low-noise in the 100 Hz-10 kHz band. Options to mitigate the noise include mechanical re-design, adaptive filtering of the noise on any acoustic sensor using the vehicle as a platform, or active noise control (ANC). The first ...
Fulop Sean A SA Linguist, California State Univ.Fresno, 5245 N Backer Ave., PB92, Fresno, CA 93740-8001, - - 2014
Recent phonological analysis of Karajá, a Macro-Jê language of Brazil, claimed that the language's vowel system evinces advanced tongue root (ATR) harmony [Ribeiro, "ATR harmony and palatalization in Karajá," Santa Barbara Pap. Linguist. 10 (2000)]. Despite this, the phonetic facts about these vowels have never been published, which has left ...
Kotula-Balak Malgorzata M Department of Endocrinology, Institute of Zoology, Jagiellonian University, Krakow, Poland. Electronic address: - - 2014
Photoperiod is an environmental signal that controls physiology and behavior of all organisms. Bank voles, which are seasonal breeders, are stimulated to reproduce by the long photoperiod associated with spring and summer. To date, physiology of bank vole spermatozoa has not been explored, although they constitute an interesting model for ...
Wittenberg Gal G Department of Plant Sciences, Weizmann Institute of Science, Rehovot, 76100, - - 2014
A chloroplast protein disulfide isomerase (PDI) was previously proposed to regulate the translation of the unicellular green alga Chlamydomonas reinhardtii chloroplast psbA mRNA, encoding the D1 protein, in response to light. Here we show that AtPDI6, a member of the 13 Arabidopsis thaliana PDI genes, plays a role in the ...
Tattini Massimiliano M The National Research Council of Italy, Department of Biology, Agriculture and Food Sciences; Institute for Plant Protection, Via Madonna del Piano 10, I-50019, Sesto Fiorentino, Florence, - - 2014
The putative photoprotective role of foliar anthocyanins continues to attract heated debate. Strikingly different experimental set-ups coupled with a poor knowledge of anthocyanin identity have likely contributed to such disparate opinions. Here, the photosynthetic responses to 30% or 100% solar irradiance were compared in two cultivars of basil, the green-leafed ...
Darwish Majd M EA 4279, Laboratoire de Physiologie des Fruits et Légumes, Université d'Avignon et des pays de Vaucluse, 301, rue Baruch de Spinoza, BP 21239, 84916 Avignon cedex 9, France. Electronic address: - - 2014
This work analyses the effects of alternation of light/dark periods pretreatment (AL) in tobacco plantlets (Nicotiana tabacum L. cv.Virginie vk51) growing in solution with low concentration of the clomazone herbicide. The experimentation has been carried out by exposing the plantlets to successive and regulated periods of light (16min light/8min dark ...
Aan Anne A Institute of Ecology and Earth Sciences, University of Tartu, 40 Lai St., 51005, Tartu, Estonia, - - 2014
Light- and nitrogen-use change was examined along productivity gradients in natural grasslands at Laelatu, western Estonia, both at community level and in most abundant species. Aboveground biomass (M) ranged from 341 to 503 g m(-2) in wet (W) and from 248 to 682 g m(-2) in dry (D) community. Aboveground leaf area ratio (aLAR) ...
Kim Seung-Won SW Biorobotics Laboratory, School of Mechanical and Aerospace Engineering, Institute of Advanced Machinery and Design, Seoul National University, 151-744, Seoul, - - 2014
The Venus flytrap uses bistability, the structural characteristic of its leaf, to actuate the leaf's rapid closing motion for catching its prey. This paper presents a flytrap-inspired robot and novel actuation mechanism that exploits the structural characteristics of this structure and a developable surface. We focus on the concept of ...
Williams Mathew M School of GeoSciences, University of Edinburgh, Edinburgh, EH9 3JN, - - 2014
We investigated how radiation conditions within a tundra canopy were linked to canopy photosynthesis, and how this linkage explained photosynthetic sensitivity to sky conditions, that is total radiation and its diffuse fraction. We measured within canopy radiation at leaf scales and net CO2 exchanges at canopy scales, under varied total ...
Bellasio Chandra C Physiological Ecology Group, Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, - - 2014
C4 plants have a biochemical carbon-concentrating mechanism that increases CO2 concentration around Rubisco in the bundle sheath. Under low light, the activity of the carbon-concentrating mechanism generally decreases, associated with an increase in leakiness (), the ratio of CO2 retrodiffusing from the bundle sheath relative to C4 carboxylation. This increase ...
Esteban R R Department of Plant Biology and Ecology, University of Basque Country (UPV/EHU), Apdo. 644, E-48080 Bilbao, - - 2014
The photosynthesis in evergreen trees living in Mediterranean ecosystems is subjected to multiple climatic stresses due to water shortage and high temperatures during the summer and to low temperatures during the winter. Mediterranean perennials deploy different photoprotective mechanisms to prevent damage to the photosynthetic system. Wax accumulation in leaves is ...
Kramer Russell D RD Department of Forestry and Wildland Resources, Humboldt State University, 1 Harpst St Arcata, CA 95521, - - 2014
Redwood branches provide all the carbohydrates for the most carbon-heavy forests on Earth, and recent whole-tree measurements have quantified trunk growth rates associated with complete branch inventories. Providing all of a tree's photosynthetic capacity, branches represent an increasing proportion of total aboveground wood production as trees enlarge. To examine branch ...
Christensen Jared D JD Department of Radiology, Duke University Medical Center, Durham, NC, 27710, - - 2014
This retrospective study assessed whether dual-source high-pitch computed tomographic angiography (CTA) offered advantages over single-source standard-pitch techniques in the evaluation of the ascending aorta. Twenty patients who received both thoracic dual-source high-pitch and single-source standard-pitch CTAs within 1 year were assessed. Dual-source CTAs were performed; standard-pitch imaging used dose-modulated 120 kVp/150 mAs and ...
Schertzer E E UPMC Univ. Paris 06, Laboratoire de Probabilités et Modèles Aléatoires, CNRS UMR 7599, Paris, France, - - 2014
The role of fire in expanding the global distribution of savanna is well recognized. Empirical observations and modeling suggest that fire spread has a threshold response to fuel-layer continuity, which sets up a positive feedback that maintains savanna-forest bistability. However, modeling has so far failed to examine fire spread as ...
Brown H Carolyn Peach HC University of Prince Edward Island, Charlottetown, PE, Canada, - - 2014
Tropical forests are vulnerable to climate-change representing a risk for indigenous peoples and forest-dependent communities. Mechanisms to conserve the forest, such as REDD+, could assist in the mitigation of climate change, reduce vulnerability, and enable people to adapt. Ninety-eight interviews were conducted in three countries containing the Congo Basin forest, ...
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