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https://www.readbyqxmd.com/read/28102542/silicon-promotes-cytokinin-biosynthesis-and-delays-senescence-in-arabidopsis-and-sorghum
#1
Oshry Markovich, Evyatar Steiner, Štěpán Kouřil, Petr Tarkowski, Asaph Aharoni, Rivka Elbaum
Silicate minerals are dominant soil components. Thus, plant roots are constantly exposed to silicic acid. High silicon intake, enabled by root silicon transporters, correlates with increased tolerance to many biotic and abiotic stresses. However, the underlying protection mechanisms are largely unknown. Here, we tested the hypothesis that silicon interacts with the plant hormones, and specifically, that silicic acid intake increases cytokinin biosynthesis. The reaction of sorghum (Sorghum bicolor) and Arabidopsis plants, modified to absorb high versus low amounts of silicon, to dark-induced senescence was monitored, by quantifying expression levels of genes along the senescence pathway and measuring tissue cytokinin levels...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28098198/climate-change-influences-on-crop-mix-shifts-in-the-united-states
#2
Sung Ju Cho, Bruce A McCarl
We examine the impact of current and future climate on crop mixes over space in the US. We find using historical data that temperature and precipitation are among the causal factors for shits in crop production location and mixes, with some crops being more sensitive than others. In particular, we find that when temperature rises, cotton, rice, sorghum and winter wheat are more likely to be chosen. We also find that barley, sorghum, winter wheat, spring wheat and hay are more likely to be chosen as regions become drier, and corn, cotton, rice and soybeans are more likely to be selected in wetter regions...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28096612/effect-of-feeding-acacia-nilotica-pod-meal-on-hematobiochemical-profile-and-fecal-egg-count-in-goats
#3
Jitendra Kumar Paswan, Kaushalendra Kumar, Sanjay Kumar, Chandramoni, Abhishek Kumar, Deepak Kumar, Ajit Kumar
AIM: This study was conducted to observe the effect of feeding Acacia nilotica pod meal on hematobiochemical profile and gastrointestinal parasitic load in growing goats. MATERIALS AND METHODS: To experiment was conducted for a period of 3-month on 24 male goats (3½ month old, average body weight [BW] 6.50±1.50 kg), distributed into four groups of six animals each. The experimental animals were fed graded level of A. nilotica pod meal (0%, 10%, 20% and 30%) mixed in concentrate mixture equivalent to tannin concentration of 0%, 1...
December 2016: Veterinary World
https://www.readbyqxmd.com/read/28094157/stabilization-of-tannery-sludge-by-co-treatment-with-aluminum-anodizing-sludge-and-phytotoxicity-of-end-products
#4
E Pantazopoulou, O Zebiliadou, M Mitrakas, A Zouboulis
A global demand for efficient re-utilization of produced solid wastes, which is based on the principles of re-use and recycling, results to a circular economy, where one industry's waste becomes another's raw material and it can be used in a more efficient and sustainable way. In this study, the influence of a by-product addition, such as aluminum anodizing sludge, on tannery waste (air-dried sludge) stabilization was examined. The chemical characterization of tannery waste leachate, using the EN 12457-2 standard leaching test, reveals that tannery waste cannot be accepted even in landfills for hazardous wastes, according to the EU Decision 2003/33/EC...
January 13, 2017: Waste Management
https://www.readbyqxmd.com/read/28088302/the-cyp79a1-catalyzed-conversion-of-tyrosine-to-e-p-hydroxyphenylacetaldoxime-unravelled-using-an-improved-method-for-homology-modeling
#5
Dario Vazquez-Albacete, Marco Montefiori, Stefan Kol, Mohammed Saddik Motawia, Birger Lindberg Møller, Lars Olsen, Morten H H Nørholm
The vast diversity and membrane-bound nature of plant P450s makes it challenging to study the structural characteristics of this class of enzymes especially with respect to accurate intermolecular enzyme-substrate interactions. To address this problem we here apply a modified hybrid structure strategy for homology modeling of plant P450s. This allows for structural elucidation based on conserved motifs in the protein sequence and secondary structure predictions. We modeled the well-studied Sorghum bicolor cytochrome P450 CYP79A1 catalyzing the first step in the biosynthesis of the cyanogenic glucoside dhurrin...
January 11, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28087663/evolution-and-structural-diversification-of-nictaba-like-lectin-genes-in-food-crops-with-a-focus-on-soybean-glycine-max
#6
Sofie Van Holle, Pierre Rougé, Els J M Van Damme
BACKGROUND AND AIMS: The Nictaba family groups all proteins that show homology to Nictaba, the tobacco lectin. So far, Nictaba and an Arabidopsis thaliana homologue have been shown to be implicated in the plant stress response. The availability of more than 50 sequenced plant genomes provided the opportunity for a genome-wide identification of Nictaba-like genes in 15 species, representing members of the Fabaceae, Poaceae, Solanaceae, Musaceae, Arecaceae, Malvaceae and Rubiaceae. Additionally, phylogenetic relationships between the different species were explored...
January 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28086798/genome-wide-association-analysis-of-seedling-traits-in-diverse-sorghum-germplasm-under-thermal-stress
#7
Ratan Chopra, Gloria Burow, John J Burke, Nicholas Gladman, Zhanguo Xin
BACKGROUND: Climate variability due to fluctuation in temperature is a worldwide concern that imperils crop production. The need to understand how the germplasm variation in major crops can be utilized to aid in discovering and developing breeding lines that can withstand and adapt to temperature fluctuations is more necessary than ever. Here, we analyzed the genetic variation associated with responses to thermal stresses in a sorghum association panel (SAP) representing major races and working groups to identify single nucleotide polymorphisms (SNPs) that are associated with resilience to temperature stress in a major cereal crop...
January 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28081276/correlation-and-path-analysis-of-biomass-sorghum-production
#8
T P S Vendruscolo, M A A Barelli, M A S Castrillon, R S da Silva, F T de Oliveira, C L Corrêa, B W Zago, F D Tardin
Sorghum biomass is an interesting raw material for bioenergy production due to its versatility, potential of being a renewable energy source, and low-cost of production. The objective of this study was to evaluate the genetic variability of biomass sorghum genotypes and to estimate genotypic, phenotypic, and environmental correlations, and direct and indirect effects of seven agronomic traits through path analysis. Thirty-four biomass sorghum genotypes and two forage sorghum genotypes were cultivated in a randomized block design with three replicates...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28073905/feeding-by-melanaphis-sacchari-hemiptera-aphididae-facilitates-use-of-sorghum-by-rhopalosiphum-padi-hemiptera-aphididae-but-reciprocal-effects-are-negative
#9
J P Michaud, Yun Zhang, Clint Bain
In the process of feeding, aphids modify the physiology of their host plants in species-specific ways, and plant responses to these aggressions are often genotype- or cultivar-specific. Thus, different aphid species sharing a host can influence each other's fitness via plant-mediated interactions, usually with negative and asymmetric impacts. Here, we show that feeding by the sugarcane aphid, Melanaphis sacchari Zehntner, can improve the suitability of sorghum as a host plant for the bird cherry-oat aphid, Rhopalosiphum padi L...
January 10, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28073340/a-comparative-genomic-analysis-of-putative-pathogenicity-genes-in-the-host-specific-sibling-species-colletotrichum-graminicola-and-colletotrichum-sublineola
#10
E A S Buiate, K V Xavier, N Moore, M F Torres, M L Farman, C L Schardl, L J Vaillancourt
BACKGROUND: Colletotrichum graminicola and C. sublineola cause anthracnose leaf and stalk diseases of maize and sorghum, respectively. In spite of their close evolutionary relationship, the two species are completely host-specific. Host specificity is often attributed to pathogen virulence factors, including specialized secondary metabolites (SSM), and small-secreted protein (SSP) effectors. Genes relevant to these categories were manually annotated in two co-occurring, contemporaneous strains of C...
January 10, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28070319/development-of-a-nutrient-dense-complementary-food-using-amaranth-sorghum-grains
#11
Judith Kanensi Okoth, Sophie Atieno Ochola, Nicholas K Gikonyo, Anselimo Makokha
Thin porridge from cereals and starchy tubers is a common complementary food in Sub Saharan Africa. It may be high in antinutrients, low in energy, and nutrient density hence inadequate in providing infants' high energy and nutrients requirements per unit body weight. Consequently, undernourishment levels among children under 5 years are high. Therefore, there is need to avail nutrient-dense complementary foods especially for children in low-resource settings. The study was aimed at developing a nutrient-dense complementary food from amaranth and sorghum grains...
January 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28063247/replacing-corn-with-sorghum-in-the-diet%C3%A2-alters-intestinal-microbiota-without-altering-chicken-performance
#12
N S Fagundes, R Pereira, C Bortoluzzi, J M Rafael, G S Napty, J G M Barbosa, M C M Sciencia, J F M Menten
Sorghum grain can be used to replace corn in broiler diets. However, the effects related to an abrupt change between these grains are not yet clear. The aim of this study was to evaluate the performance and intestinal health of broilers fed diets containing corn and/or sorghum during different periods of rearing. To accomplish this aim, 2100 male chicks were fed the following experimental diets: C100% (corn-based diet); S100% (sorghum-based diet); C:S50% (diet based on corn and sorghum 1:1); PC-S (corn-based diet in the pre-starter phase and sorghum-based diet in subsequent phases); and PS-C (sorghum-based diet in the pre-starter phase and corn-based diet in subsequent phases)...
January 7, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28061813/construction-of-a-high-density-genetic-map-using-specific-locus-amplified-fragments-in-sorghum
#13
Guisu Ji, Qingjiang Zhang, Ruiheng Du, Peng Lv, Xue Ma, Shu Fan, Suying Li, Shenglin Hou, Yucui Han, Guoqing Liu
BACKGROUND: Sorghum is mainly used as a human food and beverage source, playing an important role in the production of ethanol and other bio-industrial products. Thus it is regarded as a model crop for energy plants. Genetic map construction is the foundation for marker-assisted selection and gene cloning. So far several sorghum linkage maps have been reported using different kinds of molecular markers. However marker numbers and chromosome coverage are limited. As a result, it is difficult to get consistent results and the maps are hard to unify...
January 7, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28056770/genetic-architecture-of-kernel-composition-in-global-sorghum-germplasm
#14
Davina H Rhodes, Leo Hoffmann, William L Rooney, Thomas J Herald, Scott Bean, Richard Boyles, Zachary W Brenton, Stephen Kresovich
BACKGROUND: Sorghum [Sorghum bicolor (L.) Moench] is an important cereal crop for dryland areas in the United States and for small-holder farmers in Africa. Natural variation of sorghum grain composition (protein, fat, and starch) between accessions can be used for crop improvement, but the genetic controls are still unresolved. The goals of this study were to quantify natural variation of sorghum grain composition and to identify single-nucleotide polymorphisms (SNPs) associated with variation in grain composition concentrations...
January 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28052078/morphological-characterization-of-a-new-and-easily-recognizable-nuclear-male-sterile-mutant-of-sorghum-sorghum-bicolor
#15
Zhanguo Xin, Jian Huang, Ashley R Smith, Junping Chen, John Burke, Scott E Sattler, Dazhong Zhao
Sorghum (Sorghum bicolor L. Moench) is one of the most important grain crops in the world. The nuclear male sterility (NMS) trait, which is caused by mutations on the nuclear gene, is valuable for hybrid breeding and genetic studies. Several NMS mutants have been reported previously, but none of them were well characterized. Here, we present our detailed morphological characterization of a new and easily recognizable NMS sorghum mutant male sterile 8 (ms8) isolated from an elite inbred BTx623 mutagenized by ethyl methane sulfonate (EMS)...
2017: PloS One
https://www.readbyqxmd.com/read/28040870/innovative-methods-to-generate-clean-sugar-stream-from-biomass-feedstocks-for-efficient-fermentation
#16
REVIEW
Jung-Eun Lee, Yadhu N Guragain, Krishna P Bastola, Praveen V Vadlani
Sorghum stalks were evaluated to generate clean sugars; enzymatic hydrolysis efficiency of acid pretreated biomass was significantly low (12.3 g sugar/g pretreated biomass) compared to alkali method (49.1 g sugar/g pretreated biomass). Inhibitory compounds derived from acid pretreatment, such as hydroxymethyl furfural (HMF) and furfural, were effectively removed using an appropriate detoxification method using 1% (w/v) activated charcoal. The resin mixture containing cationic exchangers (DOWEX 50WX8) and anionic exchangers (IRA 743) in 7:3 ratio at pH 2...
December 31, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28040779/forward-genetics-by-sequencing-ems-variation-induced-inbred-lines
#17
Charles Addo-Quaye, Elizabeth Buescher, Norman Best, Vijay Chaikam, Ivan Baxter, Brian P Dilkes
In order to leverage novel sequencing techniques for cloning genes in eukaryotic organisms with complex genomes, the false positive rate of variant discovery must be controlled for by experimental design and informatics. We sequenced five lines from three pedigrees of EMS mutagenized Sorghum bicolor, including a pedigree segregating a recessive dwarf mutant. Comparing the sequences of the lines, we were able to identify and eliminate error prone positions. One genomic region contained EMS mutant alleles in dwarfs that were homozygous reference sequence in wild-type siblings and heterozygous in segregating families...
December 30, 2016: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28039423/relative-toxicity-of-two-aphicides-to-hippodamia-convergens-coleoptera-coccinellidae-implications-for-integrated-management-of-sugarcane-aphid-melanaphis-sacchari-hemiptera-aphididae
#18
Felipe Colares, J P Michaud, Clint L Bain, Jorge B Torres
Flupyradifurone and sulfoxaflor present novel insecticide chemistries with particular efficacy against aphids, and the recent emergence of sugarcane aphid, Melanaphis sacchari (Zehntner), as a pest of sorghum in the United States has resulted in their widespread use. We examined their toxicity to Hippodamia convergens Guerin-Meneville, an important aphid biocontrol agent. We exposed beetles to topical applications of the field rate (FR) of these insecticides, fed them contaminated food (eggs of Ephestia kuehniella Zeller), and gave first-instar larvae 24-h exposures to leaf residues...
December 29, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28032438/accumulation-of-stem-sugar-and-its-remobilisation-in-response-to-drought-stress-in-a-sweet-sorghum-genotype-and-its-near-isogenic-lines-carrying-different-stay-green-loci
#19
T Ghate, S Deshpande, S Bhargava
Near isogenic lines (NILs) of sweet sorghum genotype S35 into which individual stay green loci were introgressed, were used to understand the contribution of Stay green loci to stem sugar accumulation and its remobilization under drought stress exposure. Sugar and starch content, activities of sugar metabolism enzymes and levels of their expression were studied in the 3rd (source) leaf from panicle and the 5th (sugar storing) internode of the three lines, in irrigated plants and in plants exposed to a brief drought exposure at the panicle emergence stage...
December 29, 2016: Plant Biology
https://www.readbyqxmd.com/read/28032228/sweet-sorghum-bagasse-and-corn-stover-serving-as-substrates-for-producing-sophorolipids
#20
Abdul Samad, Ji Zhang, Da Chen, Xiaowen Chen, Melvin Tucker, Yanna Liang
To make the process of producing sophorolipids by Candida bombicola truly sustainable, we investigated production of these biosurfactants on biomass hydrolysates. This study revealed: (1) yield of sophorolipds on bagasse hydrolysate decreased from 0.56 to 0.54 and to 0.37 g/g carbon source when yellow grease was dosed at 10, 40 and 60 g/L, respectively. In the same order, concentration of sophorolipids was 35.9, 41.9, and 39.3 g/L; (2) under similar conditions, sophorolipid yield was 0.12, 0.05 and 0.04 g/g carbon source when corn stover hydrolysate was mixed with soybean oil at 10, 20 and 40 g/L...
December 28, 2016: Journal of Industrial Microbiology & Biotechnology
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