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Journal articles on the topic 'Primary root inhibition'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Shukla, Vinay, Lara Lombardi, Ales Pencik, et al. "Jasmonate Signalling Contributes to Primary Root Inhibition Upon Oxygen Deficiency in Arabidopsis thaliana." Plants 9, no. 8 (2020): 1046. http://dx.doi.org/10.3390/plants9081046.

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Plants, including most crops, are intolerant to waterlogging, a stressful condition that limits the oxygen available for roots, thereby inhibiting their growth and functionality. Whether root growth inhibition represents a preventive measure to save energy or is rather a consequence of reduced metabolic rates has yet to be elucidated. In the present study, we gathered evidence for hypoxic repression of root meristem regulators that leads to root growth inhibition. We also explored the contribution of the hormone jasmonic acid (JA) to this process in Arabidopsis thaliana. Analysis of transcript

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2

Sun, Li Rong, Yi Bin Wang, Shi Bin He, and Fu Shun Hao. "Mechanisms for Abscisic Acid Inhibition of Primary Root Growth." Plant Signaling & Behavior 13, no. 9 (2018): e1500069. http://dx.doi.org/10.1080/15592324.2018.1500069.

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3

Ortiz-Castro, Randy, Ramón Pelagio-Flores, Alfonso Méndez-Bravo, León Francisco Ruiz-Herrera, Jesús Campos-García, and José López-Bucio. "Pyocyanin, a Virulence Factor Produced by Pseudomonas aeruginosa, Alters Root Development Through Reactive Oxygen Species and Ethylene Signaling in Arabidopsis." Molecular Plant-Microbe Interactions® 27, no. 4 (2014): 364–78. http://dx.doi.org/10.1094/mpmi-08-13-0219-r.

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Pyocyanin acts as a virulence factor in Pseudomonas aeruginosa, a plant and animal pathogen. In this study, we evaluated the effect of pyocyanin on growth and development of Arabidopsis seedlings. Root inoculation with P. aeruginosa PAO1 strain inhibited primary root growth in wild-type (WT) Arabidopsis seedlings. In contrast, single lasI– and double rhlI–/lasI– mutants of P. aeruginosa defective in pyocyanin production showed decreased root growth inhibition concomitant with an increased phytostimulation. Treatment with pyocyanin modulates root system architecture, inhibiting primary root gro

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4

Whalen, Maureen C., and Lewis J. Feldman. "The effect of ethylene on root growth of Zea mays seedlings." Canadian Journal of Botany 66, no. 4 (1988): 719–23. http://dx.doi.org/10.1139/b88-104.

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The control of primary root growth in Zea mays cv. Merit by ethylene was examined. At applied concentrations of ethylene equal to or greater than 0.1 μL L−1, root elongation during 24 h was inhibited. The half-maximal response occurred at 0.6 μL L−1 and the response saturated at 6 μL L−1. Inhibition of elongation took place within 20 min. However, after ethylene was removed, elongation recovered to control values within 15 min. Root elongation was also inhibited by green light. The inhibition caused by a 24-h exposure to ethylene was restricted to the elongating region just behind the apex, wi

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5

Huang, Yupu, Sheliang Wang, Lei Shi, and Fangsen Xu. "JASMONATE RESISTANT 1 negatively regulates root growth under boron deficiency in Arabidopsis." Journal of Experimental Botany 72, no. 8 (2021): 3108–21. http://dx.doi.org/10.1093/jxb/erab041.

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Abstract Boron (B) is an essential micronutrient for plant growth and development. Jasmonic acid (JA) plays pivotal roles in plant growth, but the underlying molecular mechanism of JA involvement in B-deficiency-induced root growth inhibition is yet to be explored. In this study, we investigated the response of JA to B deficiency and the mechanism of JAR1-dependent JA signaling in root growth inhibition under B deficiency in Arabidopsis. B deficiency enhanced JA signaling in roots, and root growth inhibition was partially restored by JA biosynthesis inhibition. The jar1-1 (jasmonate-resistant

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Liu, Huabin, Yue Wu, Jiahui Cai, et al. "Effect of Auxin on Cadmium Toxicity-Induced Growth Inhibition in Solanum lycopersicum." Toxics 12, no. 5 (2024): 374. http://dx.doi.org/10.3390/toxics12050374.

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Auxins play crucial regulatory roles in plants coping with cadmium (Cd) stress. However, the regulatory mechanism by which auxins alleviate Cd toxicity in tomato seedlings remains unclear. Here, we demonstrate that exposure to Cd stress leads to dynamic changes in the auxin response in tomato roots, characterized by an initial increase followed by a subsequent weakening. Under Cd stress, tomato seedlings show primary root- and hypocotyl-growth inhibition, accompanied by the accumulation of Cd and reactive oxygen species (ROS) in the roots. The exogenous application of 1-naphthylacetic acid (NA

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7

Schwartz, Martha, Arie Altman, Yael Cohen, and Tova Arzee. "INHIBITION OF POLYAMINE BIOSYNTHESIS BY L-CANAVANINE AND ITS EFFECT ON MERISTEMATIC ACTIVITY, GROWTH, AND DEVELOPMENT OF ZEA MAYS ROOTS." Israel Journal of Plant Sciences 45, no. 1 (1997): 23–30. http://dx.doi.org/10.1080/07929978.1997.10676666.

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The effects of L-canavanine, a structural analogue of L-arginine and a competitive inhibitor of arginine decarboxylase, were studied in corn (Zea mays L.) on primary root elongation and lateral root differentiation, meristematic activity, and on polyamine content and biosynthesis. Incubation of seedlings in 10−3 M L-canavanine for 3 h inhibited both elongation of the primary root and differentiation of lateral root primordia. A marked decrease in cell division and DNA synthesis, along with an inhibition of the activation of the primary root quiescent center, was clearly evident in L-canavanine

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8

Bailey, D. J., A. Kleczkowski, and C. A. Gilligan. "An Epidemiological Analysis of the Role of Disease-Induced Root Growth in the Differential Response of Two Cultivars of Winter Wheat to Infection by Gaeumannomyces graminis var. tritici." Phytopathology® 96, no. 5 (2006): 510–16. http://dx.doi.org/10.1094/phyto-96-0510.

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Epidemiological modeling combined with parameter estimation of experimental data was used to examine differences in the contribution of disease-induced root production to the spread of take-all on plants of two representative yet contrasting cultivars of winter wheat, Ghengis and Savannah. A mechanistic model, including terms for primary infection, secondary infection, inoculum decay, and intrinsic and disease-induced root growth, was fitted to data describing changes in the numbers of infected and susceptible roots over time at a low or high density of inoculum. Disease progress curves were c

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9

Fitzgerald, M., G. C. Kwiat, J. Middleton, and A. Pini. "Ventral spinal cord inhibition of neurite outgrowth from embryonic rat dorsal root ganglia." Development 117, no. 4 (1993): 1377–84. http://dx.doi.org/10.1242/dev.117.4.1377.

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Organotypic culture of embryonic rat lumbar spinal cord and dorsal root ganglia has been used to demonstrate an inhibitory effect of ventral spinal cord on neurite growth from dorsal root ganglion explants. When dorsal root ganglion explants from 14–15 day old embryos were cultured alone or in close proximity to a dorsal cord explant, the pattern of dorsal root ganglion neurite outgrowth was typically radial. However, when E14-15 dorsal root ganglion explants were cocultured for 22–24 hours in proximity to a ventral spinal cord explant from the same embryo, few, if any, dorsal root ganglion ne

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10

Shen, Zeping, Tingting Zuo, Hailin Xia, et al. "Synthetic CsCEP3 Peptide Attenuates Salinity Stress via ROS and ABA Signaling in Cucumber Primary Root." Horticulturae 9, no. 8 (2023): 921. http://dx.doi.org/10.3390/horticulturae9080921.

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Salinity stress prominently limits cucumber growth and productivity. However, the mechanism underlying salinity response mediated by the C-TERMINALLY ENCODED PEPTIDE (CEP) peptide in cucumber primary root remains largely unclear. In this study, we show that salinity prominently inhibits cucumber primary root growth, and CsCEP gene expression is differentially induced by salinity. We further demonstrate that the exogenous application of synthetic CsCEP3 peptide partially suppresses salinity-triggered growth inhibition in cucumber primary root, although CsCEP3 peptide itself shows no obvious eff

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11

Wei, Ruonan, Lei Ma, Shaoying Ma, et al. "Intrinsic Mechanism of CaCl2 Alleviation of H2O2 Inhibition of Pea Primary Root Gravitropism." International Journal of Molecular Sciences 25, no. 16 (2024): 8613. http://dx.doi.org/10.3390/ijms25168613.

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Normal root growth is essential for the plant uptake of soil nutrients and water. However, exogenous H2O2 inhibits the gravitropic growth of pea primary roots. It has been shown that CaCl2 application can alleviate H2O2 inhibition, but the exact alleviation mechanism is not clear. Therefore, the present study was carried out by combining the transcriptome and metabolome with a view to investigate in depth the mechanism of action of exogenous CaCl2 to alleviate the inhibition of pea primordial root gravitropism by H2O2. The results showed that the addition of CaCl2 (10 mmol·L−1) under H2O2 stre

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12

Kudirka, Dalia T., and Blanche B. Brightwell. "The indirect effect of exogenous auxin on initiation of cell divisions in wheat root expiants (Triticum aestivum) during callus induction." Canadian Journal of Botany 67, no. 7 (1989): 1979–84. http://dx.doi.org/10.1139/b89-251.

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Mitotic activity (indices) was measured in apical and nonapical regions of primary root explants excised from 2-day-old germinating seedlings of wheat (Triticum aestivum Thell em L.) and cultured in the presence of the synthetic auxins 3,6-dichloro-O-anisic acid (dicamba) and 2,4-dichlorophenoxyacetic acid (2,4-D). Mitotic activity in the root apical meristem decreased with increasing concentration of auxin in the culture media. Correlated with the decrease of mitotic activity in the root apical meristem was an increase of mitotic activity in nonapical regions of the root. The degree of cell d

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13

Bachtiar, Zulfi Amalia, Luthfiani Samad, and Supredo Putratama Manurung. "Antibacterial Activity of Ethanolic Extract of Torch Ginger (Etlingera elatior) Towards Enterococcus faecalis: A Preliminary Research to the Alternative of Root Canal Irrigant of Primary Teeth." European Journal of Dental and Oral Health 5, no. 4 (2024): 1–8. http://dx.doi.org/10.24018/ejdent.2024.5.4.342.

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Enterococcus faecalis is a notable pathogen found in the root canals of primary teeth with endodontic infections, often resistant to conventional root canal irrigation solutions, leading to treatment failure. Torch ginger or kecombrang (Etlingera elatior), a spice plant, is reported to contain bioactive compounds with antibacterial properties. This study investigates the antibacterial efficacy of ethanolic extract of torch ginger against Enterococcus faecalis, evaluating its potential as an alternative irrigant based on minimum inhibitory concentration (MIC), minimum bactericidal concentration

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14

Ma, Xiaonan, Xiaoran Zhang, Ling Yang, et al. "Hydrogen peroxide plays an important role in PERK4-mediated abscisic acid-regulated root growth in Arabidopsis." Functional Plant Biology 46, no. 2 (2019): 165. http://dx.doi.org/10.1071/fp18219.

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Abscisic acid (ABA) is a crucial factor that affects primary root tip growth in plants. Previous research suggests that reactive oxygen species (ROS), especially hydrogen peroxide, are important regulators of ABA signalling in root growth of Arabidopsis. PROLINE-RICH EXTENSIN-LIKE RECEPTOR KINASE 4 (PERK4) plays an important role in ABA responses. Arabidopsis perk4 mutants display attenuated sensitivity to ABA, especially in primary root growth. To gain insights into the mechanism(s) of PERK4-associated ABA inhibition of root growth, in this study we investigated the involvement of ROS in this

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15

Ravi, Athira, Rena Ephraim, Dhanya Kamalakshan Belchada, and Anjali Kanadan. "Determination of minimal inhibitory concentration of citric acid as a root canal irrigant against E. faecalis and C. albicans." International Journal of Clinical Trials 12, no. 1 (2025): 59–64. https://doi.org/10.18203/2349-3259.ijct20250134.

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The clinical success of primary teeth endodontic therapy depends strongly on attaining prepared root canals with sufficient disinfection levels. Therefore, using natural or chemical cleaning agents to properly clean the root canals is becoming more and more important. With little to no impact on the organic components, citric acid is effective in dissolving the smear layer and the inorganic components of root dentine. Study included the custom preparation of citric acid to 3 different concentrations-6,8, and 10%. MTCC strains of C. albicans and E. faecalis were cultured on Sabouraud Dextrose a

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16

López-Bucio, José, Juan Carlos Campos-Cuevas, Erasto Hernández-Calderón, et al. "Bacillus megaterium Rhizobacteria Promote Growth and Alter Root-System Architecture Through an Auxin- and Ethylene-Independent Signaling Mechanism in Arabidopsis thaliana." Molecular Plant-Microbe Interactions® 20, no. 2 (2007): 207–17. http://dx.doi.org/10.1094/mpmi-20-2-0207.

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Soil microorganisms are critical players in plant-soil interactions at the rhizosphere. We have identified a Bacillus megaterium strain that promoted growth and development of bean (Phaseolus vulgaris) and Arabidopsis thaliana plants. We used Arabidopsis thaliana as a model to characterize the effects of inoculation with B. megaterium on plant-growth promotion and postembryonic root development. B. megaterium inoculation caused an inhibition in primary-root growth followed by an increase in lateral-root number, lateral-root growth, and root-hair length. Detailed cellular analyses revealed that

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17

Zeng, Yinwei, Inge Verstraeten, Hoang Khai Trinh, et al. "Arabidopsis Hypocotyl Adventitious Root Formation Is Suppressed by ABA Signaling." Genes 12, no. 8 (2021): 1141. http://dx.doi.org/10.3390/genes12081141.

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Roots are composed of different root types and, in the dicotyledonous Arabidopsis, typically consist of a primary root that branches into lateral roots. Adventitious roots emerge from non-root tissue and are formed upon wounding or other types of abiotic stress. Here, we investigated adventitious root (AR) formation in Arabidopsis hypocotyls under conditions of altered abscisic acid (ABA) signaling. Exogenously applied ABA suppressed AR formation at 0.25 µM or higher doses. AR formation was less sensitive to the synthetic ABA analog pyrabactin (PB). However, PB was a more potent inhibitor at c

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18

Yuan, Yang, Danyun Xu, Denghao Xiang, Li Jiang, and Honghong Hu. "Serine Hydroxymethyltransferase 1 Is Essential for Primary-Root Growth at Low-Sucrose Conditions." International Journal of Molecular Sciences 23, no. 9 (2022): 4540. http://dx.doi.org/10.3390/ijms23094540.

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Plant roots are essential organs for absorbing nutrients from the soil or medium. Sucrose functions as a vital carbon source in root development, and sucrose starvation interferes with the redox state of plant cells. However, the mechanism of root growth at sucrose starvation remains unclear. Here, we report that SHMT1 (serine hydroxymethyltransferase 1) plays a crucial role in primary-root growth. SHMT1 mutation caused decreased sugar levels, excessive H2O2 accumulation, and severe root-growth arrest at sucrose-free conditions, whereas plants with SHMT1 overexpression had increased sugar and

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19

Gao, Yi-Qun, Ling-Hua Bu, Mei-Ling Han, et al. "Long-distance blue light signalling regulates phosphate deficiency-induced primary root growth inhibition." Molecular Plant 14, no. 9 (2021): 1539–53. http://dx.doi.org/10.1016/j.molp.2021.06.002.

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20

Liu, Hong, Huixia Yang, Chongming Wu, et al. "OverexpressingHRS1Confers Hypersensitivity to Low Phosphate-Elicited Inhibition of Primary Root Growth inArabidopsis thaliana." Journal of Integrative Plant Biology 51, no. 4 (2009): 382–92. http://dx.doi.org/10.1111/j.1744-7909.2009.00819.x.

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21

Liu, Yang-Yang, Ru-Ling Wang, Ping Zhang, Liang-liang Sun, and Jin Xu. "Involvement of reactive oxygen species in lanthanum-induced inhibition of primary root growth." Journal of Experimental Botany 67, no. 21 (2016): 6149–59. http://dx.doi.org/10.1093/jxb/erw379.

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22

Dalarmi, Luciane, da Silva Cristiane Bezerra, Szabo Ellis Marina, et al. "Dalbergia brasiliensis Vogel Extracts in vitro Antioxidant Activity and Phytotoxic Effect in Lactuca sativa and Allium cepa." International Journal of Sciences Volume 6, no. 2017-04 (2017): 80–87. https://doi.org/10.5281/zenodo.3349803.

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Based on medicinal use of Dalbergia species, the present study aimed to evaluate D. brasiliensis leaves and barks crude extracts and fractions' antioxidant and phytotoxic potential, employing allelopathic essays and 3 antioxidant essays: Phosphomolybdenum complex reduction, DPPH free radical scavenging and TBARS (lipid peroxidation). Concerning Phosphomolybdenum complex reduction potential, leaves chloroform fraction (LCF) and barks ethyl acetate fraction (BEAF) overcame rutin's reduction potential in 90% and 23%. DPPH essay revealed leaves ethyl acetate fraction (LEAF) antioxidant potential (

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23

Contreras-Cornejo, Hexon Angel, Jesús Salvador López-Bucio, Alejandro Méndez-Bravo, et al. "Mitogen-Activated Protein Kinase 6 and Ethylene and Auxin Signaling Pathways Are Involved in Arabidopsis Root-System Architecture Alterations by Trichoderma atroviride." Molecular Plant-Microbe Interactions® 28, no. 6 (2015): 701–10. http://dx.doi.org/10.1094/mpmi-01-15-0005-r.

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Trichoderma atroviride is a symbiotic fungus that interacts with roots and stimulates plant growth and defense. Here, we show that Arabidopsis seedlings cocultivated with T. atroviride have an altered root architecture and greater biomass compared with axenically grown seedlings. These effects correlate with increased activity of mitogen-activated protein kinase 6 (MPK6). The primary roots of mpk6 mutants showed an enhanced growth inhibition by T. atroviride when compared with wild-type (WT) plants, while T. atroviride increases MPK6 activity in WT roots. It was also found that T. atroviride p

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24

Su, Jia-Hang, Rui-Gang Diao, Shu-Guang Lv, Xiao-Dong Mou, and Kefeng Li. "Modes of Antiviral Action of Chemical Portions and Constituents from Woad Root Extract against Influenza Virus A FM1." Evidence-Based Complementary and Alternative Medicine 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/2537294.

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Woad root has been used for the prevention of influenza for hundreds of years in many Asian countries. In this study, the antiviral modes of clemastanin B (CB), epigoitrin, phenylpropanoid portion (PEP), and the mixture of phenylpropanoids, alkaloids, and organic acid portions (PEP + ALK + OA) from wood root extract against influenza virus A FM1 were investigated. The results revealed that CB, epigoitrin, PEP, and PEP + ALK + OA exert their anti-influenza activity via inhibiting the virus multiplication, prophylaxis, and blocking the virus attachment. The primary mode of action of PEP and PEP

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Delay, Christina, Kelly Chapman, Michael Taleski, et al. "CEP3 levels affect starvation-related growth responses of the primary root." Journal of Experimental Botany 70, no. 18 (2019): 4763–74. http://dx.doi.org/10.1093/jxb/erz270.

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AbstractCEPs (C-TERMINALLY ENCODED PEPTIDEs) inhibit Arabidopsis primary root growth by unknown mechanisms. We investigated how CEP3 levels control primary root growth. CEP3 peptide application decreased cell division, S-phase cell number, root meristematic cell number, and meristem zone (MZ) size in a dose- and CEP RECEPTOR1-dependent manner. Grafting showed that CEP3-dependent growth inhibition requires root and shoot CEPR1. CEP3 induced mitotic quiescence in MZ cells significantly faster than that induced by nutrient limitation alone. CEP3 also inhibited the restoration of S-phase to mitoti

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26

Xu, Yu, Junjie Zou, Hongyan Zheng, Miaoyun Xu, Xuefeng Zong, and Lei Wang. "RNA-Seq Transcriptome Analysis of Rice Primary Roots Reveals the Role of Flavonoids in Regulating the Rice Primary Root Growth." Genes 10, no. 3 (2019): 213. http://dx.doi.org/10.3390/genes10030213.

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Flavonoids play important roles in root development and in its tropic responses, whereas the flavonoids-mediated changes of the global transcription levels during root growth remain unclear. Here, the global transcription changes in quercetin-treated rice primary roots were analyzed. Quercetin treatment significantly induced the inhibition of root growth and the reduction of H2O2 and O2− levels. In addition, the RNA-seq analysis revealed that there are 1243 differentially expressed genes (DEGs) identified in quercetin-treated roots, including 1032 up-regulated and 211 down-regulated genes. A g

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Soga, Kouichi, Kazuyuki Wakabayashi, Seiichiro Kamisaka, and Takayuki Hoson. "Mechanoreceptors rather than sedimentable amyloplasts perceive the gravity signal in hypergravity-induced inhibition of root growth in azuki bean." Functional Plant Biology 32, no. 2 (2005): 175. http://dx.doi.org/10.1071/fp04145.

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Elongation of primary roots of azuki bean (Vigna angularis Ohwi et Ohashi) was suppressed under hypergravity conditions produced by centrifugation, such that the growth rate decreased in proportion to the logarithm of the magnitude of the gravity. The removal of the root cap did not influence the hypergravity-induced inhibition of root growth, although it completely inhibited the gravitropic root curvature. Lanthanum and gadolinium, blockers of mechanoreceptors, nullified the growth-inhibitory effect of hypergravity. These results suggest that the gravity signal for the hypergravity-induced in

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Gao, H. J., and H. Q. Yang. "Nitric oxide effect on root architecture development in Malus seedlings." Plant, Soil and Environment 57, No. 9 (2011): 418–22. http://dx.doi.org/10.17221/209/2011-pse.

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&nbsp;The time-dependent production of nitric oxide (NO) in roots induced by indole-3-butyric acid (IBA) and the effect of sodium nitroprusside (SNP) on root architecture development were investigated, using Malus hupehensis Rehd. seedlings. Following IBA application, a very rapid increase in NO formation and a subsequent second wave of NO burst was observed, which was related to the induction of lateral roots (LRs) and the organogenesis of lateral root primordia (LRP), respectively. The first NO burst was correlated with the second and the two peaks of NO burst induced by IBA were totally

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Herrera-Rodríguez, María Begoña, Juan José Camacho-Cristóbal, Rafael Barrero-Rodríguez, Jesús Rexach, María Teresa Navarro-Gochicoa, and Agustín González-Fontes. "Crosstalk of Cytokinin with Ethylene and Auxin for Cell Elongation Inhibition and Boron Transport in Arabidopsis Primary Root under Boron Deficiency." Plants 11, no. 18 (2022): 2344. http://dx.doi.org/10.3390/plants11182344.

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Several studies have shown the role of phytohormones in the regulation of root growth of Arabidopsis plants under boron (B) deficiency. Ethylene and auxin play an important role in the control of Arabidopsis primary root cell elongation under short-term B deprivation, whereas cytokinins regulate root growth inhibition under B deficiency by controlling meristem cell proliferation. In this work, we study the possible interaction among cytokinin, ethylene, and auxin in the primary root response to B-deprivation treatment, as well as their possible role in B uptake and transport. Wild type (WT) an

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Rahman, Erwid Fatchur, and Sandy Christiono. "EFFECTIVITY ANTIBACTERIAL ZINC OXIDE EUGENOL WITH ZINC OXIDE PROPOLIS FOR ENDODONTIC TREATMENT IN PRIMARY TEETH." ODONTO : Dental Journal 6, no. 2 (2019): 113. http://dx.doi.org/10.30659/odj.6.2.113-117.

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Background: Enterococcus faecalis is generally found on the failure of root canal treatments. Zinc oxide propolis is believed to have an antibacterial effect on that bacteria. This research aimed to compare bacteriostatic effect of zinc oxide eugenol (ZOE) and zinc oxide propolis (ZOP) as the sealer materials of root canal.Method: This was an experimental research with post-test only control group design with two different groups (ZOE and ZOP). Culture of Enterococcus faecalis bacteria was smeared on Blood Agar Plate media with six times replication per group and kept inside incubator for 24 h

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Jackson, Lucinda A., George Kapusta, and John H. Yopp. "Early Growth Effects of Flurazole as a Safener against Acetochlor in Grain Sorghum (Sorghum bicolor)." Weed Science 33, no. 5 (1985): 740–45. http://dx.doi.org/10.1017/s0043174500083211.

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Flurazole [phenylmethyl 2-chloro-4-(trifluoromethyl)-5-thiazolecarboxylate] and acetochlor [2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide] were examined in the laboratory and greenhouse for effects on grain sorghum [Sorghum bicolor(L.) Moench ‘G-522 DR’]. Flurazole did not protect against acetochlor-induced inhibition of primary root growth when sorghum was grown in distilled water, but some safening occurred after 8 days when nutrients were available. Flurazole did not protect primary roots completely. In the presence of nutrients, however, flurazole stimulated growth of the m

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Islam, Jaisan, Elina Kc, Byeong Ho Oh, Hyeong Cheol Moon та Young Seok Park. "Pain modulation effect on motor cortex after optogenetic stimulation in shPKCγ knockdown dorsal root ganglion-compressed Sprague-Dawley rat model". Molecular Pain 16 (січень 2020): 174480692094368. http://dx.doi.org/10.1177/1744806920943685.

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Neuropathic pain can be generated by chronic compression of dorsal root ganglion (CCD). Stimulation of primary motor cortex can disrupt the nociceptive sensory signal at dorsal root ganglion level and reduce pain behaviors. But the mechanism behind it is still implicit. Protein kinase C gamma is known as an essential enzyme for the development of neuropathic pain, and specific inhibitor of protein kinase C gamma can disrupt the sensory signal and reduce pain behaviors. Optogenetic stimulation has been emerged as a new and promising conducive method for refractory neuropathic pain. The aim of t

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Whalen, Maureen C. "The effect of mechanical impedance on ethylene production by maize roots." Canadian Journal of Botany 66, no. 11 (1988): 2139–42. http://dx.doi.org/10.1139/b88-294.

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The role of ethylene in mediating the response of primary roots of Zea mays cv. Merit to experimentally imposed mechanical impedance was examined. Root elongation was stimulated during the first 100 min of impedance. Within 300 min, impedance inhibited ethylene evolution while simultaneously stimulating 1-aminocyclopropane-1-carboxylic acid production. The root cap is not necessary for the observed impedance-mediated inhibition in ethylene, and ethylene evolution was not stimulated by excising root caps. Ethylene synthesis in roots is normally controlled by the production of 1-aminocyclopropan

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Reddy, S., and Y. Ramakrishna. "Evaluation of Antimicrobial Efficacy of Various Root Canal Filling Materials Used in Primary Teeth: A Microbiological Study." Journal of Clinical Pediatric Dentistry 31, no. 3 (2007): 193–98. http://dx.doi.org/10.17796/jcpd.31.3.t73r4061424j2578.

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The primary goal of endodontic treatment in primary teeth is to eliminate infection, and to retain the tooth in a functional state until their normal exfoliation time without endangering the permanent dentition or the general health of the child. The complexity of the pulp canal system in primary teeth presents a discerning problem for chemo-mechanical preparation. One of the factors determining the success of endodontic treatment in infected primary teeth is the sealing material that should encompass among other factors a potent bactericidal effect and the capacity to resorb along with the ro

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Sapna, Hegde, Lala Priti Kamlesh, B. Dinesh Rao, and AB Shubha. "An in vitro Evaluation of Antimicrobial Efficacy of Primary Root Canal Filling Materials." Journal of Clinical Pediatric Dentistry 37, no. 1 (2012): 59–64. http://dx.doi.org/10.17796/jcpd.37.1.v6305588xw525505.

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Objective: The present study aimed to evaluate and compare six different materials commonly used for filling the root canals of primary teeth for antimicrobial efficacy against some of the microorganisms commonly found in infected root canals. Study design: In this experimental in vitro study six root canal filling materials were tested for antimicrobial efficacy against eight microbial strains using the agar diffusion method. Results: Zinc oxide eugenol paste exhibited the strongest antimicrobial potential followed by Endoflas™, zinc oxide-calcium hydroxide-sodium fluoride mixture, zinc oxide

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Fiala, R., L. Kenderešová, D. Syshchykov, et al. "Comparison of root growth and morphological responses to Cadmium and Nickel in two maize cultivars." Modern Phytomorphology 3 (April 1, 2013): 131–37. https://doi.org/10.5281/zenodo.162002.

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Two maize cultivars ‘Premjia 190 MB’ and ‘Blitz 160 MB’, in their seedling stage were exposed for 3 days to Cd 2+ and Ni 2+ , separately and also jointly, in concentrations that caused significant inhibition but not cessation of root growth. Primary root growth, cell viability, tissue organization and root system morphology of both cultivars were similar under control conditions. Length of primary roots of both cultivars was significantly reduced by Cd and Ni ions and by the joint treatment (Cd+Ni), under which also early reduction of cell viability occurred. Comparing the two metals, Cd and C

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Li, J., and E. R. Perl. "Adenosine inhibition of synaptic transmission in the substantia gelatinosa." Journal of Neurophysiology 72, no. 4 (1994): 1611–21. http://dx.doi.org/10.1152/jn.1994.72.4.1611.

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1. We studied adenosine's action on synaptic transmission from primary afferent fibers to neurons of the substantia gelatinosa (SG) using tight-seal whole cell recordings in transverse slices of hamster spinal cord. Adenosine had two actions, hyperpolarization of the postsynaptic membrane and depression of the excitatory postsynaptic currents (EPSCs) evoked by dorsal root stimulation. 2. Under voltage clamp adenosine elicited a sustained outward current at a holding potential of -70 mV. The outward current was blocked by a combination of intracellular cesium and tetraethylammonium, an effect c

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Brazelton, Jessica N., Emily E. Pfeufer, Teresa A. Sweat, Brian B. McSpadden Gardener, and Catharina Coenen. "2,4-Diacetylphloroglucinol Alters Plant Root Development." Molecular Plant-Microbe Interactions® 21, no. 10 (2008): 1349–58. http://dx.doi.org/10.1094/mpmi-21-10-1349.

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Pseudomonas fluorescens isolates containing the phlD gene can protect crops from root pathogens, at least in part through production of the antibiotic 2,4-diacetylphloroglucinol (DAPG). However, the action mechanisms of DAPG are not fully understood, and effects of this antibiotic on host root systems have not been characterized in detail. DAPG inhibited primary root growth and stimulated lateral root production in tomato seedlings. Roots of the auxin-resistant diageotropica mutant of tomato demonstrated reduced DAPG sensitivity with regards to inhibition of primary root growth and induction o

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Orhan, Ayşegül, Murat Selim Botsalı, and Zeynep Şeyda Yavşan. "Comparison of the antibacterial effect of experimental primary tooth canal pastes containing octenidine dihydrochloride and calcium hydroxide: An in vitro study." Dental Journal (Majalah Kedokteran Gigi) 57, no. 3 (2024): 201–7. http://dx.doi.org/10.20473/j.djmkg.v57.i3.p201-207.

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Background: Octenidine dihydrochloride (OCT) has been used as a canal irrigation agent. However, no research has been done on its use as a primary root canal paste mixed with calcium hydroxide in primary teeth. Purpose: This study aims to determine the in vitro antibacterial effect of an experimental canal sealer prepared using OCT and calcium hydroxide (CaOH) on primary root canal pathogens and compare them to zinc oxide eugenol (ZOE) and iodoform paste (IP). Methods: Staphylococcus aureus (S. aureus), Streprococcus mutans (S. mutans) and Enteroccus faecalis (E. faecalis) were used as microor

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Kriplani, R., N. Thosar, M. S. Baliga, P. Kulkarni, N. Shah, and R. Yeluri. "Comparative Evaluation of Antimicrobial Efficacy of Various Root Canal Filling Materials Along with Aloevera Used in Primary Teeth: A Microbiological Study." Journal of Clinical Pediatric Dentistry 37, no. 3 (2013): 257–62. http://dx.doi.org/10.17796/jcpd.37.3.j62u53q2300484x5.

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Aim: this study was conducted to evaluate the antimicrobial effectiveness of 6 root canal filling materials and a negative control agent against 18 strains of bacteria isolated from infected root canals of primary molar teeth using agar diffusion assay. Materials: Aloevera with sterile water, Zinc oxide and Eugenol, Zinc oxide-Eugenol with aloevera, Calcium hydroxide and sterile water, Calcium hydroxide with sterile water and aloevera, Calcium hydroxide and Iodoform (Metapex) and Vaseline (Control). MIC and MBC of aloevera was calculated. Results: All materials except Vaseline showed varied an

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Sasaki, Kazuhiro, and Soichi Kojima. "Identification of genomic regions regulating ammonium-dependent inhibition of primary root length in Arabidopsis thaliana." Soil Science and Plant Nutrition 64, no. 6 (2018): 746–51. http://dx.doi.org/10.1080/00380768.2018.1524268.

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Wan, Jinpeng, Ping Zhang, Liangliang Sun, et al. "Involvement of reactive oxygen species and auxin in serotonin-induced inhibition of primary root elongation." Journal of Plant Physiology 229 (October 2018): 89–99. http://dx.doi.org/10.1016/j.jplph.2018.07.004.

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de Agazio, M., S. Grego, A. Ciofi-Luzzatto, E. Rea, M. L. Zaccaria, and R. Federico. "Inhibition of maize primary root elongation by spermidine: Effect on cell shape and mitotic index." Journal of Plant Growth Regulation 14, no. 2 (1995): 85–89. http://dx.doi.org/10.1007/bf00203118.

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Rubinigg, Michael, Julia Wenisch, J. Theo M. Elzenga, and Ineke Stulen. "NaCl salinity affects lateral root development in Plantago maritima." Functional Plant Biology 31, no. 8 (2004): 775. http://dx.doi.org/10.1071/fp03222.

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Root growth and morphology were assessed weekly in hydroponically-grown seedlings of the halophyte Plantago maritima L. during exposure to 0, 50, 100 and 200 mm NaCl for 21 d. Relative growth rate was reduced by 25% at 200 mm NaCl. The lower NaCl treatments did not affect relative growth rates. Primary and lateral roots responded differently to NaCl. While primary-root length increased at all NaCl concentrations, total lateral-root length increased at 50 and was not affected at 100 mm but was considerably reduced at 200 mm NaCl. NaCl concentrations of 50 and 100 mm, which had no effect on rela

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Gatti, Ana Beatriz, Alfredo Gui Ferreira, Marcos Arduin, and Sonia Cristina Gualtieri de Andrade Perez. "Allelopathic effects of aqueous extracts of Artistolochia esperanzae O.Kuntze on development of Sesamum indicum L. seedlings." Acta Botanica Brasilica 24, no. 2 (2010): 454–61. http://dx.doi.org/10.1590/s0102-33062010000200016.

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Aristolochia esperanzae is a climbing plant that occurs in the savanna regions of Brazil. The aim of this work was to identify the effects of aqueous extracts of A. esperanzae on germination, root growth and xylem cell development of sesame seedlings. Leaf and shoot extracts were prepared at concentrations of 1.5 and 3%. Extracts caused marked changes in germination and seedling growth with greatest inhibition produced by root extracts. Morphological changes and decreased growth and development of seedlings were also observed. The extracts of A. esperanzae caused a reduction of 50% in the size

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Zhao, Cuizhu, Huijuan Wang, Yao Lu, et al. "Deep Sequencing Reveals Early Reprogramming of Arabidopsis Root Transcriptomes Upon Ralstonia solanacearum Infection." Molecular Plant-Microbe Interactions® 32, no. 7 (2019): 813–27. http://dx.doi.org/10.1094/mpmi-10-18-0268-r.

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Bacterial wilt caused by the bacterial pathogen Ralstonia solanacearum is one of the most devastating crop diseases worldwide. The molecular mechanisms controlling the early stage of R. solanacearum colonization in the root remain unknown. Aiming to better understand the mechanism of the establishment of R. solanacearum infection in root, we established four stages in the early interaction of the pathogen with Arabidopsis roots and determined the transcriptional profiles of these stages of infection. A total 2,698 genes were identified as differentially expressed genes during the initial 96 h

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Kuang, Xiaofang, Hao Chen, Jing Xiang, et al. "HDC1 Promotes Primary Root Elongation by Regulating Auxin and K+ Homeostasis in Response to Low-K+ Stress." Biology 14, no. 1 (2025): 57. https://doi.org/10.3390/biology14010057.

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Plants frequently encounter relatively low and fluctuating potassium (K+) concentrations in soil, with roots serving as primary responders to this stress. Histone modifications, such as de-/acetylation, can function as epigenetic markers of stress-inducible genes. However, the signaling network between histone modifications and low-K+ (LK) response pathways remains unclear. This study investigated the regulatory role of Histone Deacetylase Complex 1 (HDC1) in primary root growth of Arabidopsis thaliana under K+ deficiency stress. Using a hdc1-2 mutant line, we observed that HDC1 positively reg

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Vladimirova, Mariya, Lora Kirova, and Ivan Traykov. "Phytotoxicological assessment of AMD affected river waters in “Sredna Gora”, Bulgaria to Lepidium sativum L." IOP Conference Series: Earth and Environmental Science 1305, no. 1 (2024): 012010. http://dx.doi.org/10.1088/1755-1315/1305/1/012010.

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Abstract The ongoing pollution of water bodies from decommissioned mines and mining waste facilities in Bulgaria is a serious problem, leading to a contamination of river waters with heavy metals. Although the chemical analyses of acid mine drainage (AMD) affected waters provide information about their toxicity, this information is not enough to evaluate the potential impacts on the biota. For this, different biological responses are used to assess the toxicity of the polluted waters. The goal of the research was to determine the phytotoxicity (using Lepidium sativum) of five affected river wa

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Szymańska, Maria, and Jolanta Molos. "The cytotoxic influence of aluminium on Cucumis sativus L seedling roots." Acta Agrobotanica 48, no. 2 (2013): 83–93. http://dx.doi.org/10.5586/aa.1995.019.

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The roots of 5-days old cucumber seedling cv. Wisconsin were incubated in the Al solutions (AICl<sub>3</sub>) of pH 4,2. AI was applied in the following concentrations: 20, 30 and 40 mg/dm<sup>3</sup>. All the Al concentrations caused both the inhibition of root elongation and reduction of mitotic activity of apical meristem. The complete inhibition of mitoses and elongation growth was determined in the presence of 30 and 40 mg Al/dm<sup>3</sup> after 4 and 3 days of incubation. After 5 incubation days the changes in the morphology of seedling roots, resulti

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Dong, Jun, Luyan Guo, Yanyan Xing, et al. "Curcumin protects microglia and primary cortical neurons against HIV-mediated inflammation and apoptosis (P6181)." Journal of Immunology 190, no. 1_Supplement (2013): 118.14. http://dx.doi.org/10.4049/jimmunol.190.supp.118.14.

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Abstract Curcumin is a substance in turmeric root with anti-inflammatory, antioxidant, and anti-tumor properties, and has been widely used both as an herbal drug and a food additive to treat or prevent neurodisorders. To explore whether curcumin is able to treat HIV-associated neurocognitive disorders (HAND), we treated murine microglial cell line (N9) and primary rat cortical neurons with curcumin in the presence and absence of HIV gp120 (V3 loop) protein. We found that HIV gp120 profoundly induced N9 cells to produce reactive oxygen species (ROS), tumor necrosis factor-α (TNF-α) and monocyte

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