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... Notiomastodon platensis was an endemic South American proboscidean, which could reach about six tons and had a mixed feeder diet with predominance of C₄ grasses in Brazilian Intertropical Region (BIR). In the last decades, its feeding behavior has been rebuilt mainly through dental calculus, enamel microwear and stable isotope analyses. However, all these techniques allow us to know only punctual ...
... Sorghum (Sorghum bicolor (L.) Moench) is a diverse C4 crop used for feed, food and grain- or juice-based bioethanol, with potential for lignocellulosic biofuels. Sorghum is inherently drought tolerant, but it is vulnerable to stalk rots caused by Fusarium thapsinum and Macrophomina phaseolina, especially during water stress. Post-flowering non-senescent lines (Stay-green), associated with drought ...
Genghong Wu; Kaiyu Guan; Chongya Jiang; Hyungsuk Kimm; Guofang Miao; Carl J. Bernacchi; Caitlin E. Moore; Elizabeth A. Ainsworth; Xi Yang; Joseph A. Berry; Christian Frankenberg; Min Chen
... There remains limited information to characterize the solar-induced chlorophyll fluorescence (SIF)-gross primary production (GPP) relationship in C4 cropping systems. The annual C4 crop corn and perennial C4 crop miscanthus differ in phenology, canopy structure and leaf physiology. Investigating the SIF-GPP relationships in these species could deepen our understanding of SIF-GPP relationships with ...
Nana Khundadze; Christoph Küppers; Beatrix Kammer; Andrius Garbaras; Agne Masalaite; Holger Wissel; Andreas Lücke; Bezhan Chankvetadze; Jochen Rudolph; Astrid Kiendler-Scharr; Iulia Gensch
... We report source specific isotope ratios of levoglucosan, the specific biomass burning tracer, in aerosol particles from the combustion of selected woods used for domestic heating in Europe, of coals containing cellulose (lignites) as well as of corn, a C4 plant. Here, we combine compound specific δ¹³C measurements of levoglucosan with total carbon δ¹³C of parent materials, to assess isotopic frac ...
... Pearl millet [Pennisetum glaucum (L.) R. Br.] is a C4 crop cultivated for its grain and stover in crop-livestock-based rainfed farming systems of tropics and sub-tropics in the Indian sub-continent and sub-Saharan Africa. The intensity of drought is predicted to further exacerbate climate change in growing regions, necessitating a greater focus on pearl millet breeding for drought tolerance. The n ...
... We synthesise records of stable carbon isotopes (δ¹³C values), TOC/TN, magnetic susceptibility (χlf), palynology, and phytoliths for a late Quaternary lacustrine archive from the northern Gangetic Plain, India to determine the primary driver(s) of past C₃/C₄ plant variability. The study reveals nine climate-driven shifts in vegetation over the last 15.2 ka and provides a comprehensive picture of t ...
C4 plants; Sorghum bicolor; air; energy balance; environment; gas exchange; leaf width; photosynthesis; stomatal conductance; stomatal movement; water use efficiency; water vapor
Abstract:
... Despite its importance for crop water use and productivity, especially in drought‐affected environments, the underlying mechanisms of variation in intrinsic water‐use efficiency (iWUE = net photosynthesis/stomatal conductance for water vapour, gₛw) are not well understood, especially in C₄ plants. Recently, we discovered that leaf width (LW) correlated negatively with iWUE and positively with gₛw ...
adulterants; cane sugar; high fructose corn syrup; honey; mass spectrometry; principal component analysis; provenance; sucrose; ultra-performance liquid chromatography
Abstract:
... Honey can easily be adulterated with various cheaper sweeteners for higher commercial profits. Commonly used adulterants include high fructose maize syrup and refined cane sugar, which origin is C₄ plants. Isotope ratio mass spectrometry (IRMS) can be used to determine the adulteration of honey with C₄ plants. A significant δ¹³C value difference between honey and its protein provide valuable infor ...
... Miscanthus is a perennial C4 crop whose lignocellulose can be used as an alternative to the production of biosourced material. Miscanthus x giganteus (M. x giganteus) has demonstrated high maximum yields but also high yield variability across farmers’ fields. Miscanthus sinensis (M. sinensis) can be an alternative to M. x giganteus because it is considered to be more tolerant to water stress and t ...
... Switchgrass (Panicum virgatum L.) is an important perennial C4 species due to its large potential for cellulosic bioenergy feedstock production. Identification of quantitative trait loci (QTL) controlling important developmental traits is valuable to understanding the genetic basis and using marker-assisted selection (MAS) in switchgrass breeding. One F₁ hybrid population derived from NL94 (♀) × S ...
... Soils under grasslands contribute significantly to terrestrial carbon (C) and nitrogen (N) pools, and grassland management practices directly impact pool size through effects on plant biomass. Our objective was to quantify above and belowground plant biomass and soil C and N accumulation for year-round forage systems based on N-fertilized grasses (GN; 290 kg N ha⁻¹ yr⁻¹) or legume-grass mixtures ( ...
... There is tremendous interspecific variability in O₃ sensitivity among C₃ species, but variation among C₄ species has been less clearly documented. It is also unclear whether stomatal conductance and leaf structure such as leaf mass per area (LMA) determine the variation in sensitivity to O₃ across species. In this study, we investigated leaf morphological, chemical, and photosynthetic responses of ...
... KEY MESSAGE: A combined transcriptomic and metabolic analysis of Setaria viridis leaves responding to aphid infestation was used to identify genes related to serotonin biosynthesis. Setaria viridis (green foxtail), a short life-cycle C4 plant in the Poaceae family, is the wild ancestor of Setaria italica (foxtail millet), a resilient crop that provides good yields in dry and marginal land. Althoug ...
... Sorghum is a globally important C4 crop that serves both as staple food and as bio-fuel, and showed high phenotypic variation in grain quality. In this study, we performed RNA-seq in grains of three local Sorghum cultivars Z6, Z27 and HC4, which have differential agronomic traits especially in grain color. Our analysis revealed more than 3000 differentially expressed genes among the three cultivar ...
... This study investigated the carbon isotope ratio (¹³C/¹²C, δ¹³C in unit of parts per thousand or per mill, ‰) of different coconut water samples using elemental analysis isotope ratio mass spectrometry (EA‐IRMS) and combustion module cavity ring‐down spectroscopy (CM‐CRDS). Natural coconut water from young coconuts from 12 provinces in Thailand (n = 94), adulterated coconut water containing three ...
... Germination is a plant developmental process by which radicle of mature seeds start to penetrate surrounding barriers for seedling establishment and multiple environmental factors have been shown to affect it. Little is known how high salinity affects seed germination of C4 plant, Zea mays. Preliminary germination assay suggested that isolated embryo alone was able to germinate under 200 mM NaCl t ...
... Several studies have previously reported that nanomaterial uptake and toxicity in plants are species dependent. However, the differences between photosynthetic pathways, C3 and C4, following nanomaterial exposure are poorly understood. In the current work, wheat and rice, two C3 pathway species are compared to amaranth and maize, which utilize the C4 photosynthetic mechanism. These plants were cul ...
... In many regions of the world, climate change is projected to reduce water availability through changes in the hydrological cycle, including more frequent and intense droughts, as well as seasonal shifts in precipitation. In water‐limited ecosystems, such as drylands, lower soil water availability may exceed the adaptive capacity of many organisms, leading to cascading ecological effects during (co ...
C4 plants; Setaria viridis; biochemistry; drought; drought tolerance; filling period; nutrient use efficiency; physiological response; water stress
Abstract:
... Water deficits are responsible for countless agricultural losses. Among the affected crops, C4 plants are of special interest due to their high water and nitrogen use efficiency. Two accessions of Setaria viridis (Ast-1 and A10.1) with contrasting responses to water deficit were used in the current work to better understand the mechanisms behind drought tolerance in C4 species. Our results showed ...
... Microstegium vimineum, a Poaceae annual C4 plant that occurs widely south of the Yellow River, China, also causes ecological and environmental damage in the eastern U.S.A. (Stricker et al. 2016). In October 2015, plants with leaf spots were observed by Mingling Road (32.04521°E, 118.84323°N), Nanjing, China. Initially, light brown or brown, round or oval-shaped lesions appeared on the upper surfac ...