keyword
MENU ▼
Read by QxMD icon Read
search

Plant phenotyping

keyword
https://www.readbyqxmd.com/read/28430119/influence-of-wind-speed-on-rgb-d-images-in-tree-plantations
#1
Dionisio Andújar, José Dorado, José María Bengochea-Guevara, Jesús Conesa-Muñoz, César Fernández-Quintanilla, Ángela Ribeiro
Weather conditions can affect sensors' readings when sampling outdoors. Although sensors are usually set up covering a wide range of conditions, their operational range must be established. In recent years, depth cameras have been shown as a promising tool for plant phenotyping and other related uses. However, the use of these devices is still challenged by prevailing field conditions. Although the influence of lighting conditions on the performance of these cameras has already been established, the effect of wind is still unknown...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28428810/recent-achievements-obtained-by-chloroplast-transformation
#2
REVIEW
Muhamed Adem, Dereje Beyene, Tileye Feyissa
Chloroplasts play a great role for sustained wellbeing of life on the planet. They have the power and raw materials that can be used as sophisticated biological factories. They are rich in energy as they have lots of pigment-protein complexes capable of collecting sunlight, in sugar produced by photosynthesis and in minerals imported from the plant cell. Chloroplast genome transformation offers multiple advantages over nuclear genome which among others, include: integration of the transgene via homologus recombination that enables to eliminate gene silencing and position effect, higher level of transgene expression resulting into higher accumulations of foreign proteins, and significant reduction in environmental dispersion of the transgene due to maternal inheritance which helps to minimize the major critic of plant genetic engineering...
2017: Plant Methods
https://www.readbyqxmd.com/read/28428341/ctf4-related-protein-recruits-lhp1-prc2-to-maintain-h3k27me3-levels-in-dividing-cells-in-arabidopsis-thaliana
#3
Yue Zhou, Emmanuel Tergemina, Haitao Cui, Alexander Förderer, Benjamin Hartwig, Geo Velikkakam James, Korbinian Schneeberger, Franziska Turck
Polycomb Repressive Complex (PRC) 2 catalyzes the H3K27me3 modification that warrants inheritance of a repressive chromatin structure during cell division, thereby assuring stable target gene repression in differentiated cells. It is still under investigation how H3K27me3 is passed on from maternal to filial strands during DNA replication; however, cell division can reinforce H3K27me3 coverage at target regions. To identify novel factors involved in the Polycomb pathway in plants, we performed a forward genetic screen for enhancers of the like heterochromatin protein 1 (lhp1) mutant, which shows relatively mild phenotypic alterations compared with other plant PRC mutants...
April 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28427326/no-evidence-for-strong-cytonuclear-conflict-over-sex-allocation-in-a-simultaneously-hermaphroditic-flatworm
#4
Nikolas Vellnow, Dita B Vizoso, Gudrun Viktorin, Lukas Schärer
BACKGROUND: Cytoplasmic sex allocation distorters, which arise from cytonuclear conflict over the optimal investment into male versus female reproductive function, are some of the best-researched examples for genomic conflict. Among hermaphrodites, many such distorters have been found in plants, while, to our knowledge, none have been clearly documented in animals. METHODS: Here we provide a quantitative test for cytonuclear conflict over sex allocation in the simultaneously hermaphroditic flatworm Macrostomum lignano...
April 20, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28426792/no-evidence-for-the-radiation-time-lag-model-after-whole-genome-duplications-in-teleostei
#5
Sacha Laurent, Nicolas Salamin, Marc Robinson-Rechavi
The short and long term effects of polyploidization on the evolutionary fate of lineages is still unclear despite much interest. First recognized in land plants, it has become clear that polyploidization is widespread in eukaryotes, notably at the origin of vertebrates and teleost fishes. Many hypotheses have been proposed to link the species richness of lineages and whole genome duplications. For instance, the radiation time lag model suggests that paleopolyploidy would favour the apparition of new phenotypic traits, although the radiation of the lineage would not occur before a later dispersion event...
2017: PloS One
https://www.readbyqxmd.com/read/28426703/effects-of-over-expressing-a-native-gene-encoding-5-enolpyruvylshikimate-3-phosphate-synthase-epsps-on-glyphosate-resistance-in-arabidopsis-thaliana
#6
Xiao Yang, Zachery T Beres, Lin Jin, Jason T Parrish, Wanying Zhao, David Mackey, Allison A Snow
Widespread overuse of the herbicide glyphosate, the active ingredient in RoundUp®, has led to the evolution of glyphosate-resistant weed biotypes, some of which persist by overproducing the herbicide's target enzyme, 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). EPSPS is a key enzyme in the shikimic acid pathway for biosynthesis of aromatic amino acids, lignin, and defensive compounds, but little is known about how overproducing EPSPS affects downstream metabolites, growth, or lifetime fitness in the absence of glyphosate...
2017: PloS One
https://www.readbyqxmd.com/read/28424723/evidence-mechanism-and-alternative-chemical-seedbank-level-control-of-glyphosate-resistance-of-a-rigid-ryegrass-lolium-rigidum-biotype-from-southern-spain
#7
Pablo T Fernández-Moreno, Fernando Bastida, Rafael De Prado
Rigid ryegrass (Lolium rigidum) is one of the most troublesome weeds in different crops in the Mediterranean region. A rigid ryegrass biotype from an olive grove in Jaén province (Andalusía, southern Spain), potentially resistant to glyphosate (RG), was tested for its resistance level through dose-response assays using a susceptible biotype (SG). To test the hypothesis of a non-target-site-based resistance, as point mutations are far less common mechanisms of glyphosate resistance, studies were also conducted to elucidate whether resistance was associated with biochemical, metabolism, molecular and/or physiological mechanisms...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424719/comparative-analysis-of-root-traits-and-the-associated-qtls-for-maize-seedlings-grown-in-paper-roll-hydroponics-and-vermiculite-culture-system
#8
Zhigang Liu, Kun Gao, Shengchen Shan, Riling Gu, Zhangkui Wang, Eric J Craft, Guohua Mi, Lixing Yuan, Fanjun Chen
Root system architecture (RSA) plays an important role in the acquisition of both nitrogen (N) and phosphorus (P) from the environment. Currently RSA is rarely considered as criteria for selection to improve nutrient uptake efficiency in crop breeding. Under field conditions roots can be greatly influenced by uncontrolled environment factors. Therefore, it is necessary to develop fast selection methods for evaluating root traits of young seedlings in the lab which can then be related to high nutrient efficiency of adult plants in the field...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424717/expression-of-the-maize-dof1-transcription-factor-in-wheat-and-sorghum
#9
Pamela A Peña, Truyen Quach, Shirley Sato, Zhengxiang Ge, Natalya Nersesian, Taity Changa, Ismail Dweikat, Madhavan Soundararajan, Tom E Clemente
Nitrogen is essential for plant growth and development. Improving the ability of plants to acquire and assimilate nitrogen more efficiently is a key agronomic parameter that will augment sustainability in agriculture. A transcription factor approach was pursued to address improvement of nitrogen use efficiency in two major commodity crops. To this end, the Zea mays Dof1 (ZmDof1) transcription factor was expressed in both wheat (Triticum aestivum) and sorghum (Sorghum bicolor) either constitutively, UBI4 promoter from sugarcane, or in a tissue specific fashion via the maize rbcS1 promoter...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424712/a-functional-approach-towards-understanding-the-role-of-the-mitochondrial-respiratory-chain-in-an-endomycorrhizal-symbiosis
#10
Louis Mercy, Eva Lucic-Mercy, Amaia Nogales, Areg Poghosyan, Carolin Schneider, Birgit Arnholdt-Schmitt
Arbuscular mycorrhizal fungi (AMF) are crucial components of fertile soils, able to provide several ecosystem services for crop production. Current economic, social and legislative contexts should drive the so-called "second green revolution" by better exploiting these beneficial microorganisms. Many challenges still need to be overcome to better understand the mycorrhizal symbiosis, among which (i) the biotrophic nature of AMF, constraining their production, while (ii) phosphate acts as a limiting factor for the optimal mycorrhizal inoculum application and effectiveness...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424706/evaluation-of-yield-and-drought-using-active-and-passive-spectral-sensing-systems-at-the-reproductive-stage-in-wheat
#11
Elisabeth Becker, Urs Schmidhalter
Active and passive sensors are available for ground-based, high-throughput phenotyping in the field. However, these sensor systems have seldom been compared with respect to their determination of plant water status and water use efficiency related parameters under drought conditions. In this study, five passive and active reflectance sensors, including a hyperspectral passive sensor, an active flash sensor (AFS), the Crop Circle, and the GreenSeeker, were evaluated to assess drought-related destructive and non-destructive morphophysiological parameters (ground cover, relative leaf water content, leaf temperature, and carbon isotope discrimination of leaves and grain) and grain yield of twenty wheat (Triticum aestivum L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28424679/linking-diet-to-colorectal-cancer-the-emerging-role-of-microrna-in-the-communication-between-plant-and-animal-kingdoms
#12
REVIEW
Manuela Del Cornò, Gloria Donninelli, Lucia Conti, Sandra Gessani
Environmental and lifestyle factors, including diet and nutritional habits have been strongly linked to colorectal cancer (CRC). Of note, unhealthy dietary habits leading to adiposity represent a main risk factor for CRC and are associated with a chronic low-grade inflammatory status. Inflammation is a hallmark of almost every type of cancer and can be modulated by several food compounds exhibiting either protective or promoting effects. However, in spite of an extensive research, the underlying mechanisms by which dietary patterns or bioactive food components may influence tumor onset and outcome have not been fully clarified yet...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28422996/overexpression-of-an-eazip-gene-devoid-of-transit-peptide-sequence-induced-leaf-variegation-in-tobacco
#13
Xiayu Guan, Zhijian Li, Zhiliang Zhang, Xiangying Wei, Jiahua Xie, Jianjun Chen, Qingxi Chen
Leaf variegation is an ornamental trait that is not only biologically but also economically important. In our previous study, a Mg-protoporphyrin IX monomethyl ester cyclase homologue, EaZIP (Epipremnum aureum leucine zipper) was found to be associated with leaf variegation in Epipremnum aureum (Linden & Andre) G.S. Bunting. The protein product of this nuclear-encoded gene is targeted back to chloroplast involving in chlorophyll biosynthesis. Based on a web-based homology analysis, the EaZIP was found to lack a chloroplast transit peptide (cTP) sequence...
2017: PloS One
https://www.readbyqxmd.com/read/28422008/arabidopsis-14-3-3-epsilon-members-contribute-to-polarity-of-pin-auxin-carrier-and-auxin-transport-related-development
#14
Jutta Keicher, Nina Jaspert, Katrin Weckermann, Claudia Möller, Christian Throm, Aaron Kintzi, Claudia Oecking
Eukaryotic 14-3-3 proteins have been implicated in the regulation of diverse biological processes by phosphorylation-dependent protein-protein interactions. The Arabidopsis genome encodes two groups of 14-3-3s, one of which - epsilon - is thought to fulfill conserved cellular functions. Here, we assessed the in vivo role of the ancestral 14-3-3 epsilon group members. Their simultaneous and conditional repression by RNA interference and artificial microRNA in seedlings led to altered distribution patterns of the phytohormone auxin and associated auxin transport-related phenotypes, such as agravitropic growth...
April 19, 2017: ELife
https://www.readbyqxmd.com/read/28421329/characterization-of-two-tt2-type-myb-transcription-factors-regulating-proanthocyanidin-biosynthesis-in-tetraploid-cotton-gossypium-hirsutum
#15
Nan Lu, Marissa Roldan, Richard A Dixon
Two TT2-type MYB transcription factors identified from tetraploid cotton are involved in regulating proanthocyanidin biosynthesis, providing new strategies for engineering condensed tannins in crops. Proanthocyanidins (PAs), also known as condensed tannins, are important secondary metabolites involved in stress resistance in plants, and are health supplements that help to reduce cholesterol levels. As one of the most widely grown crops in the world, cotton provides the majority of natural fabrics and is a supplemental food for ruminant animals...
April 18, 2017: Planta
https://www.readbyqxmd.com/read/28421093/enhanced-growth-performance-and-salinity-tolerance-in-transgenic-switchgrass-via-overexpressing-vacuolar-na-k-h-antiporter-gene-pvnhx1
#16
Yanhua Huang, Cong Guan, Yanrong Liu, Baoyue Chen, Shan Yuan, Xin Cui, Yunwei Zhang, Fuyu Yang
Switchgrass (Panicum virgatum L.) has been increasingly recognized as one of the most valuable perennial bioenergy crop. To improve its biomass production, especially under salt stress, we isolated a putative vacuolar Na(+) (K(+))/H(+) antiporter gene from switchgrass and designated as PvNHX1. Subcellular localization revealed that this protein was localized mainly on the vacuole membrane. The PvNHX1 was found to be expressed throughout the entire growth period of switchgrass, exhibited preferentially expressed in the leaf tissue, and highly induced by salt stress...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28420746/the-mitochondrial-dna-mtdna-associated-protein-swib5-influences-mtdna-architecture-and-homologous-recombination
#17
Jonas Blomme, Olivier Van Aken, Jelle Van Leene, Teddy Jégu, Riet Maria De Rycke, Michiel De Bruyne, Jasmien Vercruysse, Jonah Nolf, Twiggy Van Daele, Liesbeth De Milde, Mattias Vermeersch, Catherine Colas des Francs-Small, Geert De Jaeger, Moussa Benhamed, A Harvey Millar, Dirk Inzé, Nathalie Gonzalez
In addition to the nucleus, mitochondria and chloroplasts in plant cells also contain genomes. Efficient DNA repair pathways are crucial in these organelles to fix damage resulting from endogenous and exogenous factors. Plant organellar genomes are complex compared to their animal counterparts and although several plant-specific mediators of organelle DNA repair have been reported, many regulators remain to be identified. Here, we show that a mitochondrial SWI/SNF (nucleosome remodeling) complex B protein, SWIB5, is capable of associating with mitochondrial DNA (mtDNA) in Arabidopsis thaliana...
April 18, 2017: Plant Cell
https://www.readbyqxmd.com/read/28420613/genetic-analysis-and-identification-of-candidate-genes-for-two-spotted-leaf-mutants-spl101-and-spl102-in-rice
#18
Han Xiaobin, Xu Ran, Duan Penggen, Yu Haiyue, Luo Yuehua, Li Yunhai
Spotted-leaf mutants form spots in leaves or leaf sheaths under normal condition. The spotted-leaf phenotypes are similar to hypersensitive reaction of plants attacked by pathogen. Identification and characterization of the spotted-leaf mutants are helpful for understanding the mechanisms of resistance to plant diseases. Here, we identify two spotted-leaf mutants spl101 and spl102 from an EMS-treated elite japonica cultivar KYJ (Kuanyejing). spl101 and spl102 form serious spots at the late heading stage. Genetic analyses show that the spotted-leaf phenotypes of both spl101 and spl102 are caused by a single recessive mutation, respectively...
April 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28419974/prediction-and-feature-analysis-of-intron-retention-events-in-plant-genome
#19
Ying Cui, Chao Zhang, Meng Cai
Alternative splicing (AS) is a major contributor to increase the potential informational content of eukaryotic genomes by creating multiple mRNA species and proteins from a single gene. In plants, up to 60% genes are alternatively spliced and the most common type of AS is intron retention (IR). Genomic analyses of IR have illuminated its crucial role in shaping the evolution of genomes, in the control of developmental processes, and in the dynamic regulation of the transcriptome to influence phenotype. To explore the relationship between the sequence feature and the formation mechanism of IR, we statistically analyzed the retained introns and proposed an improved random forest-based hybrid method to predict intron retention events in plant genome...
April 13, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28419490/european-cowpea-landraces-for-a-more-sustainable-agriculture-system-and-novel-foods
#20
Márcia Carvalho, Penelope J Bebeli, Graça Pereira, Isaura Castro, Catalina Egea-Gilabert, Manuela Matos, Efstathia Lazaridi, Isabel Duarte, Teresa Lino-Neto, Georgia Ntatsi, Miguel Rodrigues, Dimitrios Savvas, Eduardo Rosa, Valdemar Carnide
BACKGROUND: Genetic diversity is fundamental for breeding programs and consequently has an important role to obtain new varieties. To properly use the genetic diversity present in germplasm collections, a good knowledge of the agro-morphological traits of each accession is needed. The aim of this study was to explore the production capacity of 24 cowpea landraces from Southern Europe, through phenotypic characterization and evaluation in three different locations of Greece and Portugal...
April 17, 2017: Journal of the Science of Food and Agriculture
keyword
keyword
79642
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"