keyword
MENU ▼
Read by QxMD icon Read
search

root hair

keyword
https://www.readbyqxmd.com/read/29341123/do-longer-root-hairs-improve-phosphorus-uptake-testing-the-hypothesis-with-transgenic-brachypodium-distachyon-lines-overexpressing-endogenous-rsl-genes
#1
Chunyan Zhang, Richard J Simpson, Chul Min Kim, Norman Warthmann, Emmanuel Delhaize, Liam Dolan, Mary E Byrne, Yu Wu, Peter R Ryan
Mutants without root hairs show reduced inorganic orthophosphate (Pi) uptake and compromised growth on soils when Pi availability is restricted. What is less clear is whether root hairs that are longer than wild-type provide an additional benefit to phosphorus (P) nutrition. This was tested using transgenic Brachypodium lines with longer root hairs. The lines were transformed with the endogenous BdRSL2 and BdRSL3 genes using either a constitutive promoter or a root hair-specific promoter. Plants were grown for 32 d in soil amended with various Pi concentrations...
January 17, 2018: New Phytologist
https://www.readbyqxmd.com/read/29337129/effect-of-amino-acid-substitution-of-caprice-on-cell-to-cell-movement-ability-in-arabidopsis-root-epidermis
#2
Rumi Tominaga-Wada, Takuji Wada
An R3-type MYB transcription factor, CAPRICE (CPC), is known to promote root hair cell differentiation in Arabidopsis root epidermis. The CPC protein moves from non-hair cells to the neighboring cells, and acts as an inducer of root hair formation. In contrast, we previously showed that the CPC homolog, ENHANCER OF TRY AND CPC1 (ETC1), does not move between the root epidermal cells. To clarify the critical difference in the cell-to-cell movement ability of CPC and ETC1 proteins, we generated five different chimeras of CPC and ETC1...
January 11, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29334470/heterologous-expression-of-rhizobial-celc2-cellulase-impairs-symbiotic-signaling-and-nodulation-in-medicago-truncatula
#3
Marta Robledo, Esther Menéndez, Jose Ignacio Jimenez-Zurdo, Raúl Rivas, Encarna Velazquez, Eustoquio Martinez-Molina, Giles Oldroyd, Pedro F Mateos
The infection of legume plants by rhizobia is tightly regulated to ensure accurate bacterial penetration, infection and development of functionally efficient nitrogen-fixing root nodules. Rhizobial Nod Factors (NF) have key roles in the elicitation of nodulation signalling. Infection of white clover roots also involves the tightly regulated specific breakdown of the non-crystalline apex of cell walls in growing root hairs, which is mediated by Rhizobium leguminosarum bv. trifolii cellulase CelC2. Here, we have analyzed the impact of this endoglucanase on symbiotic signalling in the model legume Medicago truncatula...
January 15, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29332275/impact-of-drought-stress-induced-by-polyethylene-glycol-on-growth-water-relations-and-cell-viability-of-norway-spruce-seedlings
#4
Ilya E Zlobin, Yury V Ivanov, Alexander V Kartashov, Vladimir V Kuznetsov
We investigated physiological responses of 7-week-old Norway spruce seedlings to water deficits of different intensities. Hydroponically grown seedlings were subjected to mild (-0.15 MPa), strong (-0.5 and -1.0 MPa) and extreme (-1.5 MPa) water deficit induced by polyethylene glycol 6000, and their growth parameters, water status and physiological activity were analyzed. Seedlings effectively restricted water loss under drought, and even under extreme water deficit, shoot relative water content did not fall below 85%...
January 5, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29320989/expression-of-vimentin-in-hair-follicle-growth-cycle-of-inner-mongolian-cashmere-goats
#5
Nai Rile, Zhihong Liu, Lixia Gao, Jingkai Qi, Meng Zhao, Yuchun Xie, Rui Su, Yanjun Zhang, Ruijun Wang, Jie Li, Hongmei Xiao, Jinquan Li
BACKGROUND: The growth of Inner Mongolian Cashmere goat skin hair follicle exhibits a periodic growth pattern. The hair growth cycle is distinguished as telogen, anagen, and catagen stages. The role of vimentin in the growth process of hair follicles is evident. To elucidate the mechanism underlying the vimentin activity in the growth cycle of hair follicles, transcriptome sequencing and liquid chromatography-tandem mass spectrometry were used to obtain the nucleic acid and amino acid sequences of VIIM gene and vimentin...
January 10, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29304231/buffered-delivery-of-phosphate-to-arabidopsis-alters-responses-to-low-phosphate
#6
Meredith T Hanlon, Swayamjit Ray, Patompong Saengwilai, Dawn Luthe, Jonathan P Lynch, Kathleen M Brown
Arabidopsis has been reported to respond to phosphate (Pi) stress by arresting primary root growth and increasing lateral root branching. We developed a system to buffer Pi availability to Arabidopsis in gel media systems by charging activated aluminum oxide particles with low and sufficient concentrations of Pi, based on previous work in horticultural and sand culture systems. This system more closely mimics soil chemistry and results in different growth and transcriptional responses to Pi stress compared with plants grown in standard gel media...
January 3, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29301952/the-deubiquitinase-otu5-regulates-root-responses-to-phosphate-starvation
#7
Der-Fen Suen, Yi-Hsiu Tsai, Ya-Tan Cheng, Ramalingam Radjacommare, Ram Nivas Ahirwar, Hongyong Fu, Wolfgang Schmidt
Phosphorus, taken up by plants as inorganic phosphate (Pi), is an essential but often growth-limiting mineral nutrient for plants. As part of an orchestrated response to improve its acquisition, insufficient Pi supply triggers alterations in root architecture and epidermal cell morphogenesis. Mutants defective in the expression of the OVARIAN TUMOR DOMAIN-CONTAINING DEUBIQUITINATING ENZYME5 (OTU5) exhibited a constitutive Pi deficiency root phenotype, comprising the formation of long and dense root hairs and attenuated primary root growth...
January 4, 2018: Plant Physiology
https://www.readbyqxmd.com/read/29301538/hair-product-use-age-at-menarche-and-mammographic-breast-density-in-multiethnic-urban-women
#8
Jasmine A McDonald, Parisa Tehranifar, Julie D Flom, Mary Beth Terry, Tamarra James-Todd
BACKGROUND: Select hair products contain endocrine disrupting chemicals (EDCs) that may affect breast cancer risk. We hypothesize that, if EDCs are related to breast cancer risk, then they may also affect two important breast cancer risk factors: age at menarche and mammographic breast density. METHODS: In two urban female cohorts (N = 248): 1) the New York site of the National Collaborative Perinatal Project and 2) the New York City Multiethnic Breast Cancer Project, we measured childhood and adult use of hair oils, lotions, leave-in conditioners, root stimulators, perms/relaxers, and hair dyes using the same validated questionnaire...
January 4, 2018: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29301366/in-bps1-downregulated-roots-the-bypass1-signal-disrupts-the-induction-of-cortical-cell-divisions-in-bean-rhizobium-symbiosis
#9
Manoj-Kumar Arthikala, Kalpana Nanjareddy, Miguel Lara
BYPASS1 (BPS1), which is a well-conserved gene in plants, is required for normal root and shoot development. In the absence of BPS1 gene function, Arabidopsis overproduces a mobile signalling compound (the BPS1 signal) in roots, and this transmissible signal arrests shoot growth and causes abnormal root development. In addition to the shoot and root meristem activities, the legumes also possess transient meristematic activity in root cortical cells during Rhizobium symbiosis. We explored the role of Phaseolus vulgaris BPS1 during nodule primordium development using an RNA-interference (RNAi) silencing approach...
January 3, 2018: Genes
https://www.readbyqxmd.com/read/29282559/characterization-of-the-rice-nla-family-reveals-a-key-role-for-osnla1-in-phosphate-homeostasis
#10
Jian Yang, Lan Wang, Chuanzao Mao, Honghui Lin
BACKGROUND: Phosphate (Pi), an essential mineral nutrient for plant development and reproduction, is one of the main components of fertilizers in modern agriculture. Previous research demonstrated that AtNLA1 mediates ubiquitination of Pi transporters in the plasma membrane and triggers their endocytosis and degradation in Arabidopsis. In this study, we researched the function of NLA homologous proteins in Pi homeostasis in rice. FINDINGS: Two OsNLA homologs from rice (Oryza sativa L...
December 28, 2017: Rice
https://www.readbyqxmd.com/read/29278144/a-functional-general-stress-response-of-bradyrhizobium-diazoefficiens-is-required-for-early-stages-of-host-plant-infection
#11
Raphael Ledermann, Ilka Bartsch, Barbara Müller, Janine Wülser, Hans-Martin Fischer
Phylogenetically diverse bacteria respond to various stress conditions by mounting a general stress response (GSR) resulting in the induction of protecting or damage repair functions. In α-proteobacteria, the GSR is induced by a regulatory cascade consisting of the extracytoplasmic function (ECF) σ factor σEcfG, its anti-σ factor NepR and the anti-anti-σ factor PhyR. We have reported previously that σEcfG and PhyR of Bradyrhizobium diazoefficiens (formerly named Bradyrhizobium japonicum), the nitrogen-fixing root nodule symbiont of soybean and related legumes, are required for efficient symbiosis, however, the precise role of the GSR remained undefined...
December 26, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29273862/heterorhizy-and-fine-root-architecture-of-rabbiteye-blueberry-vaccinium-virgatum-softwood-cuttings
#12
Takashi Baba, Satoshi Nakaba, Satoshi Noma, Ryo Funada, Takuya Ban
All fine root systems consist of individual fine roots. Individual roots have morphological, anatomical, and functional heterogeneity (heterorhizy). Heterorhizy plays crucial roles in plant ecosystems. However, in many species, the heterorhizy and fine root system architecture based on individual root units are unclear. This study investigated heterorhizy along the root system architecture of Vaccinium virgatum Ait (rabbiteye blueberry) softwood-cuttings (propagated from annual shoots in growing season) using protoxylem groups (PGs), a classification according to the number of protoxylem poles, as an indicator of individual root traits...
December 22, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/29259106/identification-of-transcriptional-and-receptor-networks-that-control-root-responses-to-ethylene
#13
Alexandria F Harkey, Justin Watkins, Amy L Olex, Kathleen T DiNapoli, Daniel Lewis, Brad Binder, Jacquelyn S Fetrow, Gloria K Muday
Transcriptomic analyses with high temporal resolution provide substantial new insight into hormonal response networks. This study identified the kinetics of genome-wide transcript abundance changes in response to elevated levels of the plant hormone ethylene in roots from light grown Arabidopsis seedlings, which were overlaid on time matched developmental changes. Functional annotation of clusters of transcripts with similar temporal patterns revealed rapidly-induced clusters with known ethylene function, and more slowly regulated clusters with novel predicted functions linked to root development...
December 19, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29247303/root-cone-angle-is-enlarged-in-docs1-lrr-rlk-mutants-in-rice
#14
M Bettembourg, M Dal-Soglio, C Bureau, A Vernet, A Dardoux, M Portefaix, M Bes, D Meynard, D Mieulet, B Cayrol, C Perin, B Courtois, J F Ma, A Dievart
BACKGROUND: The DEFECTIVE IN OUTER CELL LAYER SPECIFICATION 1 (DOCS1) gene belongs to the Leucine-Rich Repeat Receptor-Like Kinase (LRR-RLK) subfamily. It has been discovered few years ago in Oryza sativa (rice) in a screen to isolate mutants with defects in sensitivity to aluminum. The c68 (docs1-1) mutant possessed a nonsense mutation in the C-terminal part of the DOCS1 kinase domain. FINDINGS: We have generated a new loss-of-function mutation in the DOCS1 gene (docs1-2) using the CRISPR-Cas9 technology...
December 15, 2017: Rice
https://www.readbyqxmd.com/read/29236179/effects-of-glucose-and-ethylene-on-root-hair-initiation-and-elongation-in-lettuce-lactuca-sativa-l-seedlings
#15
Wakana Harigaya, Hidenori Takahashi
Root hair formation occurs in lettuce seedlings after transfer to an acidic medium (pH 4.0). This process requires cortical microtubule (CMT) randomization in root epidermal cells and the plant hormone ethylene. We investigated the interaction between ethylene and glucose, a new signaling molecule in plants, in lettuce root development, with an emphasis on root hair formation. Dark-grown seedlings were used to exclude the effect of photosynthetically produced glucose. In the dark, neither root hair formation nor the CMT randomization preceding it occurred, even after transfer to the acidic medium (pH 4...
December 13, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/29233944/ethylene-promotes-root-hair-growth-through-coordinated-ein3-eil1-and-rhd6-rsl1-activity-in-arabidopsis
#16
Ying Feng, Ping Xu, Bosheng Li, Pengpeng Li, Xing Wen, Fengying An, Yan Gong, Yi Xin, Ziqiang Zhu, Yichuan Wang, Hongwei Guo
Root hairs are an extensive structure of root epidermal cells and are critical for nutrient acquisition, soil anchorage, and environmental interactions in sessile plants. The phytohormone ethylene (ET) promotes root hair growth and also mediates the effects of different signals that stimulate hair cell development. However, the molecular basis of ET-induced root hair growth remains poorly understood. Here, we show that ET-activated transcription factor ETHYLENE-INSENSITIVE 3 (EIN3) physically interacts with ROOT HAIR DEFECTIVE 6 (RHD6), a well-documented positive regulator of hair cells, and that the two factors directly coactivate the hair length-determining gene RHD6-LIKE 4 (RSL4) to promote root hair elongation...
December 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29232417/evaluation-of-the-suitability-of-mitochondrial-dna-for-species-identification-of-microtraces-and-forensic-traces
#17
Małgorzata Natonek-Wiśniewska, Piotr Krzyścin
The objective of the study was to demonstrate how mitochondrial DNA (mtDNA) can be used to determine the species origin of animal microtraces. The study included pieces of cat and dog hair without the root, a fragment of cooked chicken bone (0.1g), three goose down samples (0.028 g), a pork swab, a pork scratching (5×5×5 mm), and pork lard (0.22 g). DNA was isolated from all of these samples using the method appropriate for the particular source material. The extracts had DNA concentration exceeding 5.4 ng/µl with A260/280 purity range of 1...
December 13, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29231025/-comparison-of-mpure-12-automatic-nucleic-acid-purification-and-chelex-100-method
#18
X Shen, M Li, Y L Wang, Y L Chen, Y Lin, Z M Zhao, T Z Que
OBJECTIVES: To explore the forensic application value of MPure-12 automatic nucleic acid purification (MPure-12 Method) for DNA extraction by extracting and typing DNA from bloodstains and various kinds of biological samples with different DNA contents. METHODS: Nine types of biological samples, such as bloodstains, semen stains, and saliva were collected. DNA were extracted using MPure-12 method and Chelex-100 method, followed by PCR amplification and electrophoresis for obtaining STR-profiles...
April 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29229750/profiling-of-accessible-chromatin-regions-across-multiple-plant-species-and-cell-types-reveals-common-gene-regulatory-principles-and-new-control-modules
#19
Kelsey A Maher, Marko Bajic, Kaisa Kajala, Mauricio Reynoso, Germain Pauluzzi, Donnelly West, Kristina Zumstein, Margaret Woodhouse, Kerry L Bubb, Michael W Dorrity, Christine Queitsch, Julia Bailey-Serres, Neelima Sinha, Siobhan M Brady, Roger Deal
The transcriptional regulatory structure of plant genomes remains poorly defined relative to animals. It is unclear how many cis-regulatory elements exist, where these elements lie relative to promoters, and how these features are conserved across plant species. We employed the Assay for Transposase-Accessible Chromatin (ATAC-seq) in four plant species (Arabidopsis thaliana, Medicago truncatula, Solanum lycopersicum, and Oryza sativa) to delineate open chromatin regions and transcription factor (TF) binding sites across each genome...
December 11, 2017: Plant Cell
https://www.readbyqxmd.com/read/29220088/multi-walled-carbon-nanotubes-applied-through-seed-priming-influence-early-germination-root-hair-growth-and-yield-of-bread-wheat-triticum-aestivum-l
#20
Anjali Joshi, Simranjeet Kaur, Keya Dharamvir, Harsh Nayyar, Gaurav Verma
BACKGROUND: Reports of multi-walled carbon nanotubes (MWCNT) incorporated into plants have indicated better yield and productivity, yet the phenomena needs in-depth understanding especially when agricultural crops are tested. We primed wheat seeds with MWCNT to understand the effects on germination, growth, anatomy, physiology and yield. RESULT: This study, carried out in field conditions is a step forward over the previous reports. Early germination, excessive root hair, denser stomata & larger root length result in faster growth and higher yield of wheat plants...
December 8, 2017: Journal of the Science of Food and Agriculture
keyword
keyword
69171
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"