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https://www.readbyqxmd.com/read/28804694/a-new-species-of-scutellaria-scutellarioideae-lamiaceae-from-sichuan-province-in-southwest-china
#1
Fei Zhao, En-De Liu, Hua Peng, Chun-Lei Xiang
Scutellaria wuana, a new species discovered from a xeric valley in Muli County of Sichuan Province in southwest China, is described and illustrated. Morphologically, the new species shares similarities with S. mairei, but can be readily distinguished by a suite of morphological characters including a white-pubescent erect stem, conspicuous leaf petioles, and a yellow corolla with a trapeziform lower-middle lip lobe. The habitat and distribution of S. wuana are also distinctive. The position of the new species within Scutellaria is examined in a phylogenetic context using the nuclear ribosomal internal and external transcribed spacers...
2017: PeerJ
https://www.readbyqxmd.com/read/28800533/deficiency-and-toxicity-of-boron-alterations-in-growth-oxidative-damage-and-uptake-by-citrange-orange-plants
#2
Asad Shah, Xiuwen Wu, Abid Ullah, Shah Fahad, Riaz Muhammad, Lei Yan, Cuncang Jiang
Boron (B) deficiency and toxicity are the major factors that affect plant growth and yield. The present study revealed the effect of B deficiency and toxicity on plant growth, morphology, physiology, and cell structure. A hydroponic culture experiment was conducted with five B levels, B deficient (B0), sufficient (B20, B10, B40) and toxic (B100). Our results show that both B deficient as well as excess level inhibit plant growth. In B deficiency, the major visible symptoms were appeared in roots, while B excess burned the leaf margin of older leaves...
August 8, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28794924/expression-of-tomato-yellow-leaf-curl-virus-coat-protein-using-baculovirus-expression-system-and-evaluation-of-its-utility-as-a-viral-antigen
#3
Lamiaa Elgaied, Reda Salem, Wael Elmenofy
DNA encoding the coat protein (CP) of an Egyptian isolate of tomato yellow leaf curl virus (TYLCV) was inserted into the genome of Autographa californica nucleopolyhedrovirus (AcNPV) under the control of polyhedrin promoter. The generated recombinant baculovirus construct harboring the coat protein gene was characterized using PCR analysis. The recombinant coat protein expressed in infected insect cells was used as a coating antigen in an indirect Enzyme-linked immunosorbent assay (ELISA) and dot blot to test its utility for the detection of antibody generated against TYLCV virus particles...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28794684/argyrella-richardsiae-a-new-species-of-melastomataceae-from-the-wet-miombo-woodlands-of-south-central-africa
#4
Marie Claire Veranso-Libalah, Robert Douglas Stone, Gudrun Kadereit
A new species from the wet miombo woodlands of Tanzania and Angola, Argyrella richardsiae Veranso-Libalah & G.Kadereit, sp. nov. (Melastomataceae, Melastomateae), is described and illustrated. Although the widespread Argyrella canescens also occurs in Tanzania and northeastern Angola, A. richardsiae is morphologically most similar to Argyrella bambutorum known only from the Northwest of Cameroon, but differs by its indumentum of glandular trichomes on the entire plant (versus a mixture of stellate and glandular trichomes in other species of Argyrella), leaf-blades with serrulate margins (versus entire margins in A...
2017: PhytoKeys
https://www.readbyqxmd.com/read/28794682/semenovia-gyirongensis-apiaceae-a-new-species-from-xizang-china
#5
Qun Ying Xiao, Jin Bo Tan, Hao Yu Hu, Song Dong Zhou, Xing Jin He
Based on morphology and molecular data, a new species Semenovia gyirongensis Q.Y.Xiao & X.J.He, from Gyirong County, Xizang, China, is described and illustrated. It is morphologically most similar to S. malcolmii (Hemsley & Pearson) Pimenov, but differs in its cylindric much-branched root, intensively branching long underground caudex with distinct nodes, narrowly ovate to ovate terminal leaf lobes, oblong bracts with obtuse-rounded or cuneate apex.
2017: PhytoKeys
https://www.readbyqxmd.com/read/28792960/response-of-posidonia-oceanica-seagrass-and-its-epibiont-communities-to-ocean-acidification
#6
Katja Guilini, Miriam Weber, Dirk de Beer, Matthias Schneider, Massimiliano Molari, Christian Lott, Wanda Bodnar, Thibaud Mascart, Marleen De Troch, Ann Vanreusel
The unprecedented rate of CO2 increase in our atmosphere and subsequent ocean acidification (OA) threatens coastal ecosystems. To forecast the functioning of coastal seagrass ecosystems in acidified oceans, more knowledge on the long-term adaptive capacities of seagrass species and their epibionts is needed. Therefore we studied morphological characteristics of Posidonia oceanica and the structure of its epibiont communities at a Mediterranean volcanic CO2 vent off Panarea Island (Italy) and performed a laboratory experiment to test the effect of OA on P...
2017: PloS One
https://www.readbyqxmd.com/read/28792065/environmental-plasticity-of-pinot-noir-grapevine-leaves-a-trans-european-study-of-morphological-and-biochemical-changes-along-a-1500-km-latitudinal-climatic-gradient
#7
Antonella Castagna, Kristóf Csepregi, Susanne Neugart, Gaetano Zipoli, Kristýna Večeřová, Gábor Jakab, Tjaša Jug, Laura Llorens, Javier Martínez-Abaigar, Johann Martínez-Lüscher, Encarnación Núñez-Olivera, Annamaria Ranieri, Katharina Schoedl-Hummel, Monika Schreiner, Péter Teszlák, Susanne Tittmann, Otmar Urban, Dolors Verdaguer, Marcel A K Jansen, Éva Hideg
A two-year study explored metabolic and phenotypic plasticity of sun acclimated Vitis vinifera cv. Pinot noir leaves collected from twelve locations across a 36.69(o) N - 49.98(o) N latitudinal gradient. Leaf morphological and biochemical parameters were analysed in the context of meteorological parameters and the latitudinal gradient. We found that leaf fresh weight and area were negatively correlated with both global and UV radiation; cumulated global radiation being a stronger correlator. Cumulative UV radiation (sumUVR) was the strongest correlator with most leaf metabolites and pigments...
August 9, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28791998/-fibroepithelial-tumors-of-the-anogenital-mammary-like-glands
#8
A M Konstantinova, K V Shelekhova
Mammary-like glands are a normal anatomical component of the anogenital region. The tumors occurring in them morphologically mimic the similar diseases of the breast. The paper presents a case of vulvar fibroadenoma with leaf-like outgrowths and apocrine metaplasia in a 38-year-old female patient. It describes the clinical and morphological characteristics of fibroadenomas and benign phyllodes tumors in the anogenital region.
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28791042/pif4-promotes-expression-of-lng1-and-lng2-to-induce-thermomorphogenic-growth-in-arabidopsis
#9
Geonhee Hwang, Jia-Ying Zhu, Young K Lee, Sara Kim, Thom T Nguyen, Jungmook Kim, Eunkyoo Oh
Arabidopsis plants adapt to high ambient temperature by a suite of morphological changes including elongation of hypocotyls and petioles and leaf hyponastic growth. These morphological changes are collectively called thermomorphogenesis and are believed to increase leaf cooling capacity by enhancing transpiration efficiency, thereby increasing tolerance to heat stress. The bHLH transcription factor PHYTOCHROME INTERACTING FACTOR4 (PIF4) has been identified as a major regulator of thermomorphogenic growth. Here, we show that PIF4 promotes the expression of two homologous genes LONGIFOLIA1 (LNG1) and LONGIFOLIA2 (LNG2) that have been reported to regulate leaf morphology...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28776716/oak-gall-wasp-infections-of-quercus-robur-leaves-lead-to-profound-modifications-in-foliage-photosynthetic-and-volatile-emission-characteristics
#10
Yifan Jiang, Linda-Liisa Veromann-Jürgenson, Jiayan Ye, Ülo Niinemets
Oak trees (Quercus) are hosts of diverse gall-inducing parasites, but the effects of gall formation on the physiology and biochemistry on host oak leaves is poorly understood. The influence of infection by four species from two widespread gall wasp genera, Neuroterus (N. anthracinus and N. albipes) and Cynips (C. divisa and C. quercusfolii), on foliage morphology, chemistry, photosynthetic characteristics, constitutive isoprene and induced volatile emissions in Q. robur was investigated. Leaf dry mass per unit area (MA ), net assimilation rate per area (AA ), stomatal conductance (gs ), and constitutive isoprene emissions decreased with the severity of infection by all gall wasp species...
August 4, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28772818/microwave-assisted-synthesis-of-nickel-oxide-nanoparticles-using-coriandrum-sativum-leaf-extract-and-their-structural-magnetic-catalytic-properties
#11
Ramakrishnan Azhagu Raj, Mohamad S AlSalhi, Sandhanasamy Devanesan
In this paper, using Coriandrum sativum L., a leaf-extracted, assisted microwave method (MM) was used to synthesize nickel oxide formation. We synthesized nickel oxide nanoparticles (NiO) with a crystal size in the range of 15-16 nm by a Coriandrum sativum leaf-assisted microwave method (LAMM). The synthesized materials show that an X-ray diffraction (XRD) study confirmed the formation of a single phase structure exhibiting a crystallite size in the range of 15-16 nm using Scherrer's method. The nickel oxide prepared by the MM had a surface area of 60...
April 26, 2017: Materials
https://www.readbyqxmd.com/read/28769955/genome-wide-association-study-reveals-candidate-genes-for-control-of-plant-height-branch-initiation-height-and-branch-number-in-rapeseed-brassica-napus-l
#12
Ming Zheng, Cheng Peng, Hongfang Liu, Min Tang, Hongli Yang, Xiaokang Li, Jinglin Liu, Xingchao Sun, Xinfa Wang, Junfeng Xu, Wei Hua, Hanzhong Wang
Plant architecture is crucial for rapeseed yield and is determined by plant height (PH), branch initiation height (BIH), branch number (BN) and leaf and inflorescence morphology. In this study, we measured three major factors (PH, BIH, and BN) in a panel of 333 rapeseed accessions across 4 years. A genome-wide association study (GWAS) was performed via Q + K model and the panel was genotyped using the 60 k Brassica Infinium SNP array. We identified seven loci for PH, four for BIH, and five for BN. Subsequently, by determining linkage disequilibrium (LD) decay associated with 38 significant SNPs, we gained 31, 15, and 17 candidate genes for these traits, respectively...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28769951/biogeochemical-and-ecomorphological-niche-segregation-of-mediterranean-woody-species-along-a-local-gradient
#13
Enrique G de la Riva, Teodoro Marañón, Cyrille Violle, Rafael Villar, Ignacio M Pérez-Ramos
According with niche theory the species are specialized in different ecological niches, being able to coexist as result of a differential use of resources. In this context, the biogeochemical niche hypothesis proposes that species have an optimal elemental composition which results from the link between the chemical and morphological traits for the optimum plant functioning. Thus, and attending to the limiting similarity concept, different elemental composition and plant structure among co-occurring species may reduce competition, promoting different functional niches...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28769936/genetic-mapping-of-quantitative-trait-loci-for-yield-affecting-traits-in-a-barley-doubled-haploid-population-derived-from-clipper-%C3%A3-sahara-3771
#14
Fatemeh Vafadar Shamasbi, Seyed Hossein Jamali, Behzad Sadeghzadeh, Babak Abdollahi Mandoulakani
Many traits play essential roles in determining crop yield. Wide variation for morphological traits exists in Hordeum vulgare L., but the genetic basis of this morphological variation is largely unknown. To understand genetic basis controlling morphological traits affecting yield, a barley doubled haploid population (146 individuals) derived from Clipper × Sahara 3771 was used to map chromosome regions underlying days to awn appearance, plant height, fertile spike number, flag leaf length, spike length, harvest index, seed number per plant, thousands kernel weight, and grain yield...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28769717/an-elusive-neotropical-giant-hondurantemna-chespiritoi-gen-n-sp-n-antemninae-mantidae-a-new-lineage-of-mantises-exhibiting-an-ontogenetic-change-in-cryptic-strategy
#15
Henrique M Rodrigues, Julio Rivera, Neil Reid, Gavin J Svenson
We present the description of a new genus and new species of praying mantis, Hondurantemna chespiritoigen. n. & sp. n. This species of cryptic mantis, collected in National parks in Mexico and Honduras, remained unknown despite its considerable body size. Based on a phylogenetic analysis with molecular data and traditional morphological analysis, we place this new genus within Antemninae, a monotypic Mantidae subfamily. We update the subfamily concept for Antemninae and provide a key to the two genera. We describe the external morphology of immatures and adults of the new species as well as the genital complexes of both sexes and the ootheca of Antemna rapax...
2017: ZooKeys
https://www.readbyqxmd.com/read/28756157/degradation-of-anthropogenic-pollutant-and-organic-dyes-by-biosynthesized-silver-nano-catalyst-from-cicer-arietinum-leaves
#16
Geeta Arya, Nikita Sharma, Jahangir Ahmed, Nidhi Gupta, Ajeet Kumar, Ramesh Chandra, Surendra Nimesh
The work represents the potent catalytic activity of silver nanoparticles synthesized from Cicer arietinum (chickpea) leaf extract (CAL-AgNPs). Here, silver nano-catalysts were used against the anthropogenic pollutants mainly involving nitro-amines and azo dyes. These pollutants are extremely harmful to our environment and causes severe health issues. The CAL-AgNPs have the potential to degrade harmful toxins and their by-products, thereby decreasing the pollutants from the environment. The green synthesis of nano-catalyst includes a simple, cost effective and eco-friendly method using the leaf extract from the plant...
July 22, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28755599/leaf-morphological-variability-and-intraspecific-taxonomic-units-for-pedunculate-oak-and-grayish-oak-genus-quercus-l-series-pedunculatae-schwz-in-southern-carpathian-region-romania
#17
Ecaterina Nicoleta Apostol, Alexandru Lucian Curtu, Liviu Mihai Daia, Bogdan Apostol, Cristiana Georgeta Dinu, Neculae Şofletea
Even though pedunculate oak (Quercus robur L.) and grayish oak (Quercus pedunculiflora K. Koch) have different ecological requirements, they have been considered as having low differentiation at the level of morphological traits and genetic variation. The leaf morphology for 862 trees has been assessed in 16 natural populations, seven of Q. robur, eight of Q. pedunculiflora and a mixed forest were both taxa coexist. In total, fifteen descriptors have been analysed by using discriminant analysis, while it was found that with only four out of the fifteen leaf traits (abaxial pubescence, abaxial colour of the leaf, petiole length and basal shape of lamina) the two taxa could be clearly differentiated...
July 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28750041/comparison-of-growth-and-physiological-characteristics-between-roughstalk-bluegrass-and-tall-fescue-in-response-to-simulated-waterlogging
#18
Mingyang Liu, Andrew Hulting, Carol Mallory-Smith
Roughstalk bluegrass (Poa trivialis) is a weed in cool season grass seed production fields in Oregon. Populations of this weed are often greater in fields prone to waterlogging. A greenhouse study was conducted to investigate the morphological and physiological differences between recently established roughstalk bluegrass and tall fescue (Lolium arundinaceum) plants in response to simulated waterlogging. Differences in root morphological development and root respiration were found between waterlogged tall fescue and roughstalk bluegrass...
2017: PloS One
https://www.readbyqxmd.com/read/28747919/intraspecific-trait-variation-and-coordination-root-and-leaf-economics-spectra-in-coffee-across-environmental-gradients
#19
Marney E Isaac, Adam R Martin, Elias de Melo Virginio Filho, Bruno Rapidel, Olivier Roupsard, Karel Van den Meersche
Hypotheses on the existence of a universal "Root Economics Spectrum" (RES) have received arguably the least attention of all trait spectra, despite the key role root trait variation plays in resource acquisition potential. There is growing interest in quantifying intraspecific trait variation (ITV) in plants, but there are few studies evaluating (i) the existence of an intraspecific RES within a plant species, or (ii) how a RES may be coordinated with other trait spectra within species, such as a leaf economics spectrum (LES)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28747703/linking-the-morphological-and-metabolomic-response-of-lactuca-sativa-l-exposed-to-emerging-contaminants-using-gc%C3%A2-%C3%A3-%C3%A2-gc-ms-and-chemometric-tools
#20
Carlos Hurtado, Hadi Parastar, Víctor Matamoros, Benjamín Piña, Romà Tauler, Josep M Bayona
The occurrence of contaminants of emerging concern (CECs) in irrigation waters (up to low μg L(-1)) and irrigated crops (ng g(-1) in dry weight) has been reported, but the linkage between plant morphological changes and plant metabolomic response has not yet been addressed. In this study, a non-targeted metabolomic analysis was performed on lettuce (Lactuca sativa L) exposed to 11 CECs (pharmaceuticals, personal care products, anticorrosive agents and surfactants) by irrigation. The plants were watered with different CEC concentrations (0-50 µg L(-1)) for 34 days under controlled conditions and then harvested, extracted, derivatised and analysed by comprehensive two-dimensional gas chromatography coupled to a time-of-flight mass spectrometer (GC × GC-TOFMS)...
July 26, 2017: Scientific Reports
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