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Plants (Basel, Switzerland)

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https://www.readbyqxmd.com/read/27929423/plant-responses-to-climate-change-the-case-study-of-betulaceae-and-poaceae-pollen-seasons-northern-italy-vignola-emilia-romagna
#1
Anna Maria Mercuri, Paola Torri, Rita Fornaciari, Assunta Florenzano
Aerobiological data have especially demonstrated that there is correlation between climate warming and the pollination season of plants. This paper focuses on airborne pollen monitoring of Betulaceae and Poaceae, two of the main plant groups with anemophilous pollen and allergenic proprieties in Northern Italy. The aim is to investigate plant responses to temperature variations by considering long-term pollen series. The 15-year aerobiological analysis is reported from the monitoring station of Vignola (located near Modena, in the Emilia-Romagna region) that had operated in the years 1990-2004 with a Hirst spore trap...
December 6, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27916835/synthesis-and-functions-of-jasmonates-in-maize
#2
REVIEW
Eli J Borrego, Michael V Kolomiets
Of the over 600 oxylipins present in all plants, the phytohormone jasmonic acid (JA) remains the best understood in terms of its biosynthesis, function and signaling. Much like their eicosanoid analogues in mammalian system, evidence is growing for the role of the other oxylipins in diverse physiological processes. JA serves as the model plant oxylipin species and regulates defense and development. For several decades, the biology of JA has been characterized in a few dicot species, yet the function of JA in monocots has only recently begun to be elucidated...
November 29, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27754365/an-in-vitro-procedure-for-phenotypic-screening-of-growth-parameters-and-symbiotic-performances-in-lotus-corniculatus-cultivars-maintained-in-different-nutritional-conditions
#3
Vladimir Totev Valkov, Maurizio Chiurazzi
The establishment of legumes crops with phenotypic traits that favour their persistence and competitiveness in mixed swards is a pressing task in sustainable agriculture. However, to fully exploit the potential benefits of introducing pasture-based grass-legume systems, an increased scientific knowledge of legume agronomy for screening of favourable traits is needed. We exploited a short-cut phenotypic screening as a preliminary step to characterize the growth capacity of three different Lotus corniculatus cvs cultivated in different nutritional conditions as well as the evaluation of their nodulation capacities...
October 13, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27735856/understanding-plant-nitrogen-metabolism-through-metabolomics-and-computational-approaches
#4
Perrin H Beatty, Matthias S Klein, Jeffrey J Fischer, Ian A Lewis, Douglas G Muench, Allen G Good
A comprehensive understanding of plant metabolism could provide a direct mechanism for improving nitrogen use efficiency (NUE) in crops. One of the major barriers to achieving this outcome is our poor understanding of the complex metabolic networks, physiological factors, and signaling mechanisms that affect NUE in agricultural settings. However, an exciting collection of computational and experimental approaches has begun to elucidate whole-plant nitrogen usage and provides an avenue for connecting nitrogen-related phenotypes to genes...
October 10, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27618119/interaction-effect-between-elevated-co%C3%A2-and-fertilization-on-biomass-gas-exchange-and-c-n-ratio-of-european-beech-fagus-sylvatica-l
#5
Neda Lotfiomran, Michael Köhl, Jörg Fromm
The effects of elevated CO₂ and interaction effects between elevated CO₂ and nutrient supplies on growth and the C/N ratio of European beech (Fagus sylvatica L.) saplings were studied. One-year-old beech saplings were grown in a greenhouse at ambient (385 ppm) and elevated CO₂ (770 ppm/950 ppm), with or without fertilization for two growing seasons. In this study, emphasis is placed on the combined fertilization including phosphorus, potassium and nitrogen with two level of elevated CO₂. The fertilized plants grown under elevated CO₂ had the highest net leaf photosynthesis rate (Ac)...
September 7, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27618118/structural-properties-of-cruciferin-and-napin-of-brassica-napus-canola-show-distinct-responses-to-changes-in-ph-and-temperature
#6
Suneru P Perera, Tara C McIntosh, Janitha P D Wanasundara
The two major storage proteins identified in Brassica napus (canola) were isolated and studied for their molecular composition, structural characteristics and the responses of structural features to the changes in pH and temperature. Cruciferin, a complex of six monomers, has a predominantly β-sheet-containing secondary structure. This protein showed low pH unstable tertiary structure, and distinctly different solubility behaviour with pH when intact in the seed cellular matrix. Cruciferin structure unfolds at pH 3 even at ambient temperature...
September 7, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27608048/knockdown-of-whirly1-affects-drought-stress-induced-leaf-senescence-and-histone-modifications-of-the-senescence-associated-gene-hvs40
#7
Bianka Janack, Paula Sosoi, Karin Krupinska, Klaus Humbeck
The plastid-nucleus located protein WHIRLY1 has been described as an upstream regulator of leaf senescence, binding to the promoter of senescence-associated genes like HvS40. To investigate the impact of WHIRLY1 on drought stress-induced, premature senescence, transgenic barley plants with an RNAi-mediated knockdown of the HvWHIRLY1 gene were grown under normal and drought stress conditions. The course of leaf senescence in these lines was monitored by physiological parameters and studies on the expression of senescence- and drought stress-related genes...
September 6, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27598219/correction-phosphorylation-affects-dna-binding-of-the-senescence-regulating-bzip-transcription-factor-gbf1-plants-2015-4-691-709
#8
Anja Smykowski, Stefan M Fischer, Ulrike Zentgraf
The authors wish to make the following corrections to their paper [1].[...].
September 1, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27571112/phenylphenalenones-accumulate-in-plant-tissues-of-two-banana-cultivars-in-response-to-herbivory-by-the-banana-weevil-and-banana-stem-weevil
#9
Dirk Hölscher, Andreas Buerkert, Bernd Schneider
Phenylphenalenone-type compounds accumulated in the tissues of two banana cultivars-Musa acuminata cv. "Grande Naine" (AAA) and Musa acuminata × balbisiana Colla cv. "Bluggoe" (ABB)-when these were fed on by the banana weevil (Cosmopolites sordidus (Germ.) (Coleoptera: Curculionidae)) and the banana stem weevil (Odoiporus longicollis (Oliver) (Coleoptera: Curculionidae)). The chemical constituents of the banana material were separated by means of chromatographic techniques and identified by NMR spectroscopy...
August 25, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27529286/the-role-of-flavonoids-in-nodulation-host-range-specificity-an-update
#10
REVIEW
Cheng-Wu Liu, Jeremy D Murray
Flavonoids are crucial signaling molecules in the symbiosis between legumes and their nitrogen-fixing symbionts, the rhizobia. The primary function of flavonoids in the interaction is to induce transcription of the genes for biosynthesis of the rhizobial signaling molecules called Nod factors, which are perceived by the plant to allow symbiotic infection of the root. Many legumes produce specific flavonoids that only induce Nod factor production in homologous rhizobia, and therefore act as important determinants of host range...
August 11, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27527233/evaluating-the-role-of-seed-treatments-in-canola-oilseed-rape-production-integrated-pest-management-pollinator-health-and-biodiversity
#11
Gregory Sekulic, Curtis B Rempel
The use patterns and role of insecticide seed treatments, with focus on neonicotinoid insecticides, were examined for canola/oilseed rape production in Canada and the EU. Since nearly all planted canola acres in Western Canada and, historically, a majority of planted oilseed acres in the EU, use seed treatments, it is worth examining whether broad use of insecticidal seed treatments (IST) is compatible with principles of integrated pest management (IPM). The neonicotinoid insecticide (NNI) seed treatment (NNI ST) use pattern has risen due to effective control of several early season insect pests, the most destructive being flea beetles (Phyllotreta sp...
August 3, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27447676/blackleg-leptosphaeria-maculans-severity-and-yield-loss-in-canola-in-alberta-canada
#12
Sheau-Fang Hwang, Stephen E Strelkov, Gary Peng, Hafiz Ahmed, Qixing Zhou, George Turnbull
Blackleg, caused by Leptosphaeria maculans, is an important disease of oilseed rape (Brassica napus L.) in Canada and throughout the world. Severe epidemics of blackleg can result in significant yield losses. Understanding disease-yield relationships is a prerequisite for measuring the agronomic efficacy and economic benefits of control methods. Field experiments were conducted in 2013, 2014, and 2015 to determine the relationship between blackleg disease severity and yield in a susceptible cultivar and in moderately resistant to resistant canola hybrids...
July 20, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27447675/comparison-between-canadian-canola-harvest-and-export-surveys
#13
Véronique J Barthet
Parameters, such as oil, protein, glucosinolates, chlorophyll content and fatty acid composition, were determined using reference methods for both harvest survey samples and Canadian Canola exports. Canola harvest survey and export data were assessed to evaluate if canola harvest survey data can be extrapolated to predict the quality of the Canadian canola exports. There were some differences in some measured parameters between harvest and export data, while other parameters showed little difference. Protein content and fatty acid composition showed very similar data for harvest and export averages...
July 20, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27135234/beyond-the-canon-within-plant-and-population-level-heterogeneity-in-jasmonate-signaling-engaged-by-plant-insect-interactions
#14
REVIEW
Dapeng Li, Ian T Baldwin, Emmanuel Gaquerel
Plants have evolved sophisticated communication and defense systems with which they interact with insects. Jasmonates are synthesized from the oxylipin pathway and act as pivotal cellular orchestrators of many of the metabolic and physiological processes that mediate these interactions. Many of these jasmonate-dependent responses are tissue-specific and translate from modulations of the canonical jasmonate signaling pathway. Here we provide a short overview of within-plant heterogeneities in jasmonate signaling and dependent responses in the context of plant-insect interactions as illuminated by examples from recent work with the ecological model, Nicotiana attenuata...
March 16, 2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27376340/variations-in-the-life-cycle-of-anemone-patens-l-ranunculaceae-in-wild-populations-of-canada
#15
Vladimir Kricsfalusy
Based on a study of a perennial herb Anemone patens L. (Ranunculaceae) in a variety of natural habitats in Saskatchewan, Canada, eight life stages (seed, seedling, juvenile, immature, vegetative, generative, subsenile, and senile) are distinguished and characterized in detail. The species ontogenetic growth patterns are investigated. A. patens has a long life cycle that may last for several decades which leads to the formation of compact clumps. The distribution and age of clumps vary substantially in different environments with different levels of disturbance...
2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27338493/the-occurrence-of-flavonoids-and-related-compounds-in-flower-sections-of-papaver-nudicaule
#16
Bettina Dudek, Anne-Christin Warskulat, Bernd Schneider
Flavonoids play an important role in the pigmentation of flowers; in addition, they protect petals and other flower parts from UV irradiation and oxidative stress. Nudicaulins, flavonoid-derived indole alkaloids, along with pelargonidin, kaempferol, and gossypetin glycosides, are responsible for the color of white, red, orange, and yellow petals of different Papaver nudicaule cultivars. The color of the petals is essential to attract pollinators. We investigated the occurrence of flavonoids in basal and apical petal areas, stamens, and capsules of four differently colored P...
2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27338492/flavones-from-biosynthesis-to-health-benefits
#17
REVIEW
Nan Jiang, Andrea I Doseff, Erich Grotewold
Flavones correspond to a flavonoid subgroup that is widely distributed in the plants, and which can be synthesized by different pathways, depending on whether they contain C- or O-glycosylation and hydroxylated B-ring. Flavones are emerging as very important specialized metabolites involved in plant signaling and defense, as well as key ingredients of the human diet, with significant health benefits. Here, we appraise flavone formation in plants, emphasizing the emerging theme that biosynthesis pathway determines flavone chemistry...
2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27304974/potential-pasture-nitrogen-concentrations-and-uptake-from-autumn-or-spring-applied-cow-urine-and-dcd-under-field-conditions
#18
Jim Moir, Keith Cameron, Hong Di
Nitrogen (N) cycling and losses in grazed grassland are strongly driven by urine N deposition by grazing ruminants. The objective of this study was to quantify pasture N concentrations, yield and N uptake following autumn and spring deposition of cow urine and the effects of fine particle suspension (FPS) dicyandiamide (DCD). A field plot study was conducted on the Lincoln University dairy farm, Canterbury, New Zealand from May 2003 to May 2005. FPS DCD was applied to grazed pasture plots at 10 kg·ha(-1) in autumn and spring in addition to applied cow urine at a N loading rate of 1000 kg·N·ha(-1), with non-urine control plots...
2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27258319/reconfiguration-of-n-metabolism-upon-hypoxia-stress-and-recovery-roles-of-alanine-aminotransferase-alaat-and-glutamate-dehydrogenase-gdh
#19
REVIEW
Houssein Diab, Anis M Limami
In the context of climatic change, more heavy precipitation and more frequent flooding and waterlogging events threaten the productivity of arable farmland. Furthermore, crops were not selected to cope with flooding- and waterlogging-induced oxygen limitation. In general, low oxygen stress, unlike other abiotic stresses (e.g., cold, high temperature, drought and saline stress), received little interest from the scientific community and less financial support from stakeholders. Accordingly, breeding programs should be developed and agronomical practices should be adapted in order to save plants' growth and yield-even under conditions of low oxygen availability (e...
2016: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27187489/nitrogen-assimilation-abiotic-stress-and-glucose-6-phosphate-dehydrogenase-the-full-circle-of-reductants
#20
REVIEW
Sergio Esposito
Glucose 6 phosphate dehydrogenase (G6PDH; EC 1.1.1.49) is well-known as the main regulatory enzyme of the oxidative pentose phosphate pathway (OPPP) in living organisms. Namely, in Planta, different G6PDH isoforms may occur, generally localized in cytosol and plastids/chloroplasts. These enzymes are differently regulated by distinct mechanisms, still far from being defined in detail. In the last decades, a pivotal function for plant G6PDHs during the assimilation of nitrogen, providing reductants for enzymes involved in nitrate reduction and ammonium assimilation, has been described...
2016: Plants (Basel, Switzerland)
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