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Journal articles on the topic 'PIK5'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Longya, Apinya, Chaivarakun Chaipanya, Marina Franceschetti, Josephine H. R. Maidment, Mark J. Banfield, and Chatchawan Jantasuriyarat. "Gene Duplication and Mutation in the Emergence of a Novel Aggressive Allele of the AVR-Pik Effector in the Rice Blast Fungus." Molecular Plant-Microbe Interactions® 32, no. 6 (2019): 740–49. http://dx.doi.org/10.1094/mpmi-09-18-0245-r.

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Higher yield potential and greater yield stability are common targets for crop breeding programs, including those in rice. Despite these efforts, biotic and abiotic stresses continue to impact rice production. Rice blast disease, caused by Magnaporthe oryzae, is the most devastating disease affecting rice worldwide. In the field, resistant varieties are unstable and can become susceptible to disease within a few years of release due to the adaptive potential of the blast fungus, specifically in the effector (avirulence [AVR]) gene pool. Here, we analyzed genetic variation of the effector gene

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2

Albuquerque, A. W., F. Lombardi Neto, A. Cataneo, and V. S. Srinivasan. "Parâmetros erosividade da chuva e da enxurrada correlacionados com as perdas de solo de um solo Bruno Não-Cálcico Vértico em Sumé (PB)." Revista Brasileira de Ciência do Solo 22, no. 4 (1998): 743–49. http://dx.doi.org/10.1590/s0100-06831998000400020.

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Foram estudadas correlações lineares simples entre os parâmetros erosividade da chuva e da enxurrada e as perdas de solo provocadas por chuvas erosivas num solo Bruno Não-Cálcico Vértico. Os dados correspondentes aos anos de 1986-1990 foram obtidos na estação experimental de Sumé (PB), pertencente à Universidade Federal da Paraíba-UFPB. Os parâmetros erosividade da chuva e da enxurrada estudados foram: (a) altura total da chuva (P), em mm; (b) intensidades máximas (In), ocorridas nos tempos de 5; 10; 15; 20; 25; 30; 35; 40; 45; 50; 55; 60 e 120 minutos, respectivamente, em mm h-1; (c) energia

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3

Ma, Zuobin, Lili Wang, Liangkun Zhang, et al. "A Molecular Identification and Resistance Evaluation of the Blast Resistance Genes in Japonica Rice in Northern China." Agronomy 13, no. 10 (2023): 2662. http://dx.doi.org/10.3390/agronomy13102662.

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Rice blast is a fungal disease that seriously threatens rice production. It is of great significance to identify blast resistance genes and clarify their functions in rice varieties. In this study, 11 rice blast resistance genes in 80 Japonica rice varieties in northern China were investigated, including their resistance to rice blast. The results demonstrated that Pita, Ptr, Pib, Pik, and Piks were most widely found, accounting for 48.8, 48.8, 41.3, 20.0, and 18.8% of the tested varieties, respectively. Pi5-G2 at the Pi5 locus and Pik-G5 and Pik-G8 at the Pik locus were also commonly found, a

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Gajić, Anja, Bojana Arsić, Dragana Maćešić-Petrović, and Aleksandra Bašić. "REDUKCIJA PIKE KOD DECE SA POREMEĆAJIMA IZ SPEKTRA AUTIZMA." Педагошка стварност 68, no. 1 (2022): 3–11. http://dx.doi.org/10.19090/ps.2022.1.3-11.

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Deca sa poremećajima iz spektra autizma (PSA) često imaju abnormalne reakcije na gustativne nadražaje. Najčešći problem ishrane do kog dolazi u gustativnom domenu je pika, koja predstavlja konzumiranje nenutritivnih supstanci, a kao posledice pike navode se trovanje, infekcije, gušenje, gastrointestinalne smetnje i smrt. Stoga je cilj ovog rada da prikaže procedure primenjivane kod osoba sa PSA za redukciju pike. Za pretragu literature korišćeni su pretraživači Google Scholar, SCIndex, Pro- Quest i KoBson. U pregled su uključeni radovi koji su istraživačkog karaktera i koji prikazuju rezultate

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5

Jung, Won Seok, Soon Jeong Jeong, Sung Ryeol Park, et al. "Enhanced Heterologous Production of Desosaminyl Macrolides and Their Hydroxylated Derivatives by Overexpression of the pikD Regulatory Gene in Streptomyces venezuelae." Applied and Environmental Microbiology 74, no. 7 (2008): 1972–79. http://dx.doi.org/10.1128/aem.02296-07.

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ABSTRACT To elevate the production level of heterologous polyketide in Streptomyces venezuelae, an additional copy of the positive regulatory gene pikD was introduced into the pikromycin (Pik) polyketide synthase (PKS) deletion mutant of S. venezuelae ATCC 15439 expressing tylosin PKS genes. The resulting mutant strain showed enhanced production of both tylactone (TL) and desosaminyl tylactone (DesTL) of 2.7- and 17.1-fold, respectively. The notable increase in DesTL production strongly suggested that PikD upregulates the expression of the desosamine (des) biosynthetic gene cluster. In additio

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6

De la Concepcion, Juan Carlos, Josephine H. R. Maidment, Apinya Longya, Gui Xiao, Marina Franceschetti, and Mark J. Banfield. "The allelic rice immune receptor Pikh confers extended resistance to strains of the blast fungus through a single polymorphism in the effector binding interface." PLOS Pathogens 17, no. 3 (2021): e1009368. http://dx.doi.org/10.1371/journal.ppat.1009368.

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Arms race co-evolution drives rapid adaptive changes in pathogens and in the immune systems of their hosts. Plant intracellular NLR immune receptors detect effectors delivered by pathogens to promote susceptibility, activating an immune response that halts colonization. As a consequence, pathogen effectors evolve to escape immune recognition and are highly variable. In turn, NLR receptors are one of the most diverse protein families in plants, and this variability underpins differential recognition of effector variants. The molecular mechanisms underlying natural variation in effector recognit

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7

Xing, Junjie, Yulin Jia, Zhirong Peng, et al. "Characterization of Molecular Identity and Pathogenicity of Rice Blast Fungus in Hunan Province of China." Plant Disease 101, no. 4 (2017): 557–61. http://dx.doi.org/10.1094/pdis-03-16-0288-re.

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The blast (Magnaporthe oryzae) resistance (R) gene is the most economical and environmental method to control rice blast disease. Characterization of molecular identity and pathogenicity of M. oryzae benefits the deployment of effective blast R genes. In order to identify blast R genes that would be effective in Hunan Province,182 M. oryzae strains were analyzed with a Chinese differential system (CDS), repetitive element-based polymerase chain reaction (rep-PCR), and the presence and absence of avirulence (AVR) genes by PCR amplification with gene-specific primers. Identified blast R genes we

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8

Guo, Liwei, Stella Cesari, Karine de Guillen, et al. "Specific recognition of two MAX effectors by integrated HMA domains in plant immune receptors involves distinct binding surfaces." Proceedings of the National Academy of Sciences 115, no. 45 (2018): 11637–42. http://dx.doi.org/10.1073/pnas.1810705115.

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The structurally conserved but sequence-unrelated MAX (Magnaporthe oryzaeavirulence and ToxB-like) effectors AVR1-CO39 and AVR-PikD from the blast fungusM. oryzaeare recognized by the rice nucleotide-binding domain and leucine-rich repeat proteins (NLRs) RGA5 and Pikp-1, respectively. This involves, in both cases, direct interaction of the effector with a heavy metal-associated (HMA) integrated domain (ID) in the NLR. Here, we solved the crystal structures of a C-terminal fragment of RGA5 carrying the HMA ID (RGA5_S), alone, and in complex with AVR1-CO39 and compared it to the structure of the

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9

Gu, Fengwei, Zhikai Han, Xiaodi Zou, et al. "Unveiling the Role of RNA Recognition Motif Proteins in Orchestrating Nucleotide-Binding Site and Leucine-Rich Repeat Protein Gene Pairs and Chloroplast Immunity Pathways: Insights into Plant Defense Mechanisms." International Journal of Molecular Sciences 25, no. 10 (2024): 5557. http://dx.doi.org/10.3390/ijms25105557.

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In plants, nucleotide-binding site and leucine-rich repeat proteins (NLRs) play pivotal roles in effector-triggered immunity (ETI). However, the precise mechanisms underlying NLR-mediated disease resistance remain elusive. Previous studies have demonstrated that the NLR gene pair Pik-H4 confers resistance to rice blast disease by interacting with the transcription factor OsBIHD1, consequently leading to the upregulation of hormone pathways. In the present study, we identified an RNA recognition motif (RRM) protein, OsRRM2, which interacted with Pik1-H4 and Pik2-H4 in vesicles and chloroplasts.

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10

Meng, Fen, Yonggang He, Jing Chen, et al. "Analysis of natural variation of the rice blast resistance gene Pike and identification of a novel allele Pikg." Molecular Genetics and Genomics 296, no. 4 (2021): 939–52. http://dx.doi.org/10.1007/s00438-021-01795-w.

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11

Antil, Sundeep Kumar, Ram Naresh, Mukesh Kumar, Kuldeep Singh, and Darshana Duhan. "Development of Simplified Relationship between Rainfall Erosion Indices and Precipitation Indices for Soil Conservation in Hisar, Haryana, India." International Journal of Plant & Soil Science 37, no. 1 (2025): 76–80. https://doi.org/10.9734/ijpss/2025/v37i15253.

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Soil erosion is the functional ability of rainfall to detach the soil particles and simultaneously the susceptibility of soil to resist against raindrop. In this study, an effort was made to develop a relationship between erosion indices and precipitation indices for the study area. The rainfall data of 16 years for the selected durations of 15-60 minute storms was analyzed to evaluate the erosion potential. A highly significant linear correlation was observed between erosion index (EI) and precipitation index (PI) values computed for the durations of 15, 30, 45 and 60 minutes. The obtained co

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12

Li, Xinda, Dániel Palkovics, Péter Windisch, Željka Perić Kačarević, and Attila Horváth. "A Combined Approach Using Strip Grafts and Xenogenic Dermal Matrix for Peri-Implant Keratinized Mucosa Augmentation in the Mandible: A Case Series." Biomedicines 13, no. 4 (2025): 806. https://doi.org/10.3390/biomedicines13040806.

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Background: Ensuring a minimum peri-implant keratinized mucosa width (PIKM-W) is critical for maintaining dental implant health, as inadequate PIKM-W is associated with increased risks of plaque accumulation, mucosal inflammation, and peri-implantitis. While epithelialized connective tissue grafts (ECTGs) are considered the gold standard for soft tissue augmentation, they often lead to significant patient morbidity. Xenogeneic dermal matrices (XDMs) offer a less invasive alternative, but are prone to shrinkage, particularly in the mandible. The aim of this study was to evaluate a new surgical

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13

Strahl, Thomas, Hiroko Hama, Daryll B. DeWald, and Jeremy Thorner. "Yeast phosphatidylinositol 4-kinase, Pik1, has essential roles at the Golgi and in the nucleus." Journal of Cell Biology 171, no. 6 (2005): 967–79. http://dx.doi.org/10.1083/jcb.200504104.

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Phosphatidylinositol 4-kinase, Pik1, is essential for viability. GFP-Pik1 localized to cytoplasmic puncta and the nucleus. The puncta colocalized with Sec7-DsRed, a marker of trans-Golgi cisternae. Kap95 (importin-β) was necessary for nuclear entry, but not Kap60 (importin-α), and exportin Msn5 was required for nuclear exit. Frq1 (frequenin orthologue) also is essential for viability and binds near the NH2 terminus of Pik1. Frq1-GFP localized to Golgi puncta, and Pik1 lacking its Frq1-binding site (or Pik1 overexpressed in frq1Δ cells) did not decorate the Golgi, but nuclear localization was u

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14

Erai, Michelle, Dan Taulapapa McMullin, and Moana Nepia. "PIKO." Amerasia Journal 41, no. 3 (2015): 67–80. http://dx.doi.org/10.17953/0044-7471-41.3.67.

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15

Roberts, Michael Symmons. "Pika." Grand Street, no. 70 (2002): 179. http://dx.doi.org/10.2307/25008611.

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16

Patney, Anjul, Stanley Tzeng, Kerry A. Seitz, and John D. Owens. "Piko." ACM Transactions on Graphics 34, no. 4 (2015): 1–13. http://dx.doi.org/10.1145/2766973.

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17

Ye, Keqiang, K. Joseph Hurt, Frederick Y. Wu, et al. "PIKE." Cell 103, no. 6 (2000): 919–30. http://dx.doi.org/10.1016/s0092-8674(00)00195-1.

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18

Tong, Shengchun, Guorong Li, Jinfang Li, et al. "Influence of the Plateau Pika Mound Numbers on Soil Water Erosion Properties in Alpine Meadows of the Yellow River Source Zone, Western China." Water 15, no. 17 (2023): 3111. http://dx.doi.org/10.3390/w15173111.

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The plateau pika (Ochotona curzoniae) actively contributes to soil erosion and meadow degradation in western China’s Yellow River source zone. This study aimed to elucidate the effects of the pika mound numbers on the hydrodynamic characteristics and soil water erosion through simulated rainfall experiments. The inhibition effects of restored vegetation growth on meadow degradation and soil erosion were explored using a revegetated pika mound as a control. The results showed that at a rainfall intensity of 30 mm/h, the soil loss per unit time increased and then decreased with rainfall time and

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19

Badryzlova, Nina Sergeevna, Symbat Mukhametbekuly Anuarbekov, Kuanysh Baibulatovich Isbekov, Zhanara Omirbekovna Mazhibaeva, and Svetlana Yuryevna Dolgopolova. "Experience in reproduction and cultivation of pike (Esox lucius) stocking material in industrial environments of fish farms of Kazakhstan." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2022, no. 1 (2022): 95–103. http://dx.doi.org/10.24143/2073-5529-2022-1-95-103.

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Importance of the industrial aquaculture development in Kazakhstan is evident nowadays due to a sharp decline in the commercial fish stocks. Pike is of special interest, as it is considered a target of aquaculture cultivation in the Republic of Kazakhstan. Pike is reproduced and cultivated in industrial environments of fish farms of Kazakhstan for the first time. According to the conducted researches, a scheme of technological processes for reproduction and cultivation of the pike has been developed in the industrial environments of Bukhtarma Spawning and Breeding Farm, LLP. The scheme include

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20

He, Kunyan, Sung-Wuk Jang, Jayashree Joshi, Min-Heui Yoo, and Keqiang Ye. "Akt-phosphorylated PIKE-A inhibits UNC5B-induced apoptosis in cancer cell lines in a p53-dependent manner." Molecular Biology of the Cell 22, no. 11 (2011): 1943–54. http://dx.doi.org/10.1091/mbc.e10-11-0923.

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UNC5B acts as a tumor suppressor, and it induces apoptosis in the absence of its cognate ligand netrins. UNC5B is a direct transcriptional target of p53 upon UV stimulation. Here we show that Akt phosphorylates PIKE-A and regulates its association with UNC5B and inhibits UNC5B-provoked apoptosis in a p53-dependent manner. PIKE-A GTPase binds active Akt and stimulates its kinase activity in a guanine-nucleotide–dependent way. Akt feeds back and phosphorylates PIKE-A on Ser-472 and subsequently enhances its stimulatory effect on Akt kinase activity. Akt activity is significantly reduced in PIKE

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21

Faust, Matthew D., Jason J. Breeggemann, Samantha Bahr, and Brian D. S. Graeb. "Precision and Bias of Cleithra and Sagittal Otoliths Used to Estimate Ages of Northern Pike." Journal of Fish and Wildlife Management 4, no. 2 (2013): 332–41. http://dx.doi.org/10.3996/062013-jfwm-041.

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Abstract Cleithra are thought to accurately record age information and produce the most reliable age estimates relative to other calcified structures (e.g., scales) for long-lived species of Esocidae such as muskellunge Esox masquinongy and northern pike E. lucius. Sagittal otoliths provide the most accurate and precise age estimates for other fish species, yet sagittal otoliths have never been evaluated for age estimation of any species of Esocidae. Our objectives were to determine if: 1) sagittal otoliths provided more precise age estimates than cleithra for northern pike from two population

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22

Sun, Mingming, Qi Yan, Yaya Qiao, et al. "PIKE-A Modulates Mitochondrial Metabolism through Increasing SDHA Expression Mediated by STAT3/FTO Axis." International Journal of Molecular Sciences 23, no. 19 (2022): 11304. http://dx.doi.org/10.3390/ijms231911304.

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Previous studies have shown that phosphoinositide 3-kinase enhancer-activating Akt (PIKE-A) is involved in the regulation of several biological processes in cancer. In our previous study, we demonstrated a crucial function of PIKE-A in cancer energy metabolism by regulating pentose phosphate pathway (PPP) flux. However, whether PIKE-A regulates energy metabolism through affecting mitochondrial changes are poorly understood. In the present study, we show that PIKE-A promotes mitochondrial membrane potential, leading to increasing proliferation of glioblastoma cell. Mechanistically, PIKE-A affec

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23

Liu, Xinyu, Yu Qin, Yi Sun, and Shuhua Yi. "Monitoring Plateau Pika and Revealing the Associated Influencing Mechanisms in the Alpine Grasslands Using Unmanned Aerial Vehicles." Drones 9, no. 4 (2025): 298. https://doi.org/10.3390/drones9040298.

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Plateau pika (Ochotona curzoniae, hereafter pika) is a key species in the alpine grasslands on the Qinghai-Tibetan Plateau (QTP). They are susceptible to the influence of external disturbance and may present great variation, which is important to evaluate their ecological role in alpine grasslands. However, our knowledge regarding their interannual variation and the influencing mechanism is still limited due to the lack of long-term observation of pika density. This study aimed to investigate the spatiotemporal variations in pika and the associated key influencing factors by aerial photographi

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Dunker, Kristine, Robert Massengill, Parker Bradley, et al. "A Decade in Review: Alaska’s Adaptive Management of an Invasive Apex Predator." Fishes 5, no. 2 (2020): 12. http://dx.doi.org/10.3390/fishes5020012.

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Northern pike are an invasive species in southcentral Alaska and have caused the decline and extirpation of salmonids and other native fish populations across the region. Over the last decade, adaptive management of invasive pike populations has included population suppression, eradication, outreach, angler engagement, and research to mitigate damages from pike where feasible. Pike suppression efforts have been focused in open drainages of the northern and western Cook Inlet areas, and eradication efforts have been primarily focused on the Kenai Peninsula and the municipality of Anchorage. Bet

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25

Ostrovskaya, E. V. "Biological structure and abundance dynamics of Pacific rainbow smelt Osmerus dentex (Osmeridae) of the Amur river." Problems of Fisheries 23, no. 4 (2022): 134–63. http://dx.doi.org/10.36038/0234-2774-2022-23-4-134-163.

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The feeding spectrum of the Amur pike Esox reichertii Dybowski, 1869 in the reservoirs of the middle and lower reaches of the Amur River was determined. The absence of significant differences in the nutrition of pike of different sexes is shown. The nutrition of pike of different size groups is considered, the comparison of the size and weight indicators of food objects in adjacent size groups of the predator is carried out. The selectivity of pike feeding was assessed. The values of ENG in different size groups of the predator are determined. The nutrition of pike in various areas, conditiona

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Yi, Shuhua, Jianjun Chen, Yu Qin, and Gaowei Xu. "The burying and grazing effects of plateau pika on alpine grassland are small: a pilot study in a semiarid basin on the Qinghai-Tibet Plateau." Biogeosciences 13, no. 22 (2016): 6273–84. http://dx.doi.org/10.5194/bg-13-6273-2016.

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Abstract. There is considerable controversy about the effects of plateau pika (Ochotona curzoniae, hereafter pika) on alpine grassland on the Qinghai-Tibet Plateau (QTP). On the one hand, pika is considered a keystone species. On the other hand, it is being poisoned. Although significant efforts have been made to study the effects of pika at a quadrat scale ( ∼ m2), our knowledge about its distribution and effects at a larger scale is very limited. In this study, we investigated the direct effects, i.e., burying and grazing, of pika by upscaling field sampling at a quadrat scale to a plot scal

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27

Stefanich, Greg P. "U-PIK, WE-PIK, I-PIK." Middle School Journal 21, no. 5 (1990): 42–43. http://dx.doi.org/10.1080/00940771.1990.11495103.

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28

Chan, Chi Bun, and Keqiang Ye. "Multiple Functions of Phosphoinositide-3 Kinase Enhancer (PIKE)." Scientific World JOURNAL 10 (2010): 613–23. http://dx.doi.org/10.1100/tsw.2010.64.

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GTP-binding proteins are the molecular switches of numerous cellular functions, including migration, proliferation, and differentiation. In the past 10 years, we have characterized a novel class of GTPases called phosphoinositide-3 kinase enhancer (PIKE) that interacts with PI3K/Akt. In neurons, PIKE is involved in the protective mechanisms against neuroexcitotoxic insults by linking various receptors, such as mGluR1 and Unc5H2, to the PI3K cascade. Interestingly, thePIKEgene (CENTG1) is also amplified in a variety of human cancers and enhances Akt activity, leading to their resistance against

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Shrestha, Mohan Bikram, and Ritu Gurung. "Distribution of Royle’s Pika Ochotona roylei in Parvati Kunda Groundwater Complex." Nepal Journal of Environmental Science 7 (December 31, 2019): 11–15. http://dx.doi.org/10.3126/njes.v7i0.34318.

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Royle’s Pika Ochotona roylei is high altitude animal belonging to the family Ochotonidae in order Lagomorpha. Royle’s Pika was reported in different locations between an elevation of 2180 to 5950 meters above sea level (m asl). This study carried in February and October 2017 recorded a small population of Royle’s Pika in the Parvati Kunda Groundwater Complex of Gatlang village in Rasuwa District, Nepal. A total of 12 Royle’s pika individuals were head counted from three sites while Pika foraged plants were observed in other sites. Pika was observed in talus groove amidst Rhododendron-fir fores

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Wilson, Daniel J., Yongquan Xue, Kevin A. Reynolds, and David H. Sherman. "Characterization and Analysis of the PikD Regulatory Factor in the Pikromycin Biosynthetic Pathway ofStreptomyces venezuelae." Journal of Bacteriology 183, no. 11 (2001): 3468–75. http://dx.doi.org/10.1128/jb.183.11.3468-3475.2001.

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ABSTRACT The Streptomyces venezuelae pikD gene from the pikromycin biosynthetic cluster was analyzed, and its deduced product (PikD) was found to have amino acid sequence homology with a small family of bacterial regulatory proteins. Database comparisons revealed two hypothetical domains, including an N-terminal triphosphate-binding domain and a C-terminal helix-turn-helix DNA-binding motif. Analysis of PikD was initiated by deletion of the corresponding gene (pikD) from the chromosome of S. venezuelae, resulting in complete loss of antibiotic production. Complementation by a plasmid carrying

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Qin, Yu, Shuhua Yi, Yongjian Ding, et al. "Effect of plateau pika disturbance and patchiness on ecosystem carbon emissions in alpine meadow in the northeastern part of Qinghai–Tibetan Plateau." Biogeosciences 16, no. 6 (2019): 1097–109. http://dx.doi.org/10.5194/bg-16-1097-2019.

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Abstract. Plateau pika (Ochotona curzoniae) disturbance and patchiness intensify the spatial heterogeneous distribution of vegetation productivity and soil physicochemical properties, which may alter the ecosystem carbon emission process. Nevertheless, previous research has mostly focused on the homogeneous vegetation patches rather than heterogeneous land surface. Thus, this study aims to improve our understanding of the difference in ecosystem respiration (Re) over heterogeneous land surface in an alpine meadow grassland. Six different land surface types, namely large bald patches, medium ba

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Lopuhin, Dmitrij Gennad’evich, Evgeny Ivanovich Khrustalev, Ksenia Andreevna Molchanova, and Pavel Petrovich Zhdanov. "The second stage of development of artificial reproduction technology of northern pike in the Kaliningrad lagoon basin." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 6 (June 1, 2021): 42–54. http://dx.doi.org/10.33920/sel-09-2106-04.

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The second stage of development of northern pike artificial reproduction technology for stocking with larvae and fry in the Kaliningrad lagoon basin is considered in this paper. Today northern pike natural stocks in the Kaliningrad lagoon basin are not numerous due to unregulated fishery and limited spawning habitat. Since the 1990s, in many countries of the world, the number of natural stocking northern pike has gradually decreased and at present does not exceed several thousand tons. This problem is also relevant for the Baltic Sea basin, where the modern catches of northern pike in the Curo

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33

Badryzlova, Nina Sergeevna. "Comparative characteristics of the conditions for harvesting, transportation and spawning of pike perch in fish farms in Kazakhstan." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 8 (July 27, 2021): 43–55. http://dx.doi.org/10.33920/sel-09-2108-04.

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A description of biotechnical methods of harvesting pike perch in natural reservoirs, methods of catching pike perch spawners, keeping in adaptation cages and transporting pike perch from fishing sites to the farm is given. Pike perch breeders were caught from the reservoirs with fixed and floating nets during the period: in the Kapshagai reservoir from 10 to 20 April; in the Syrdarya river — from April 20 to May 5. The adaptation was carried out in cages located in the coastal zone. Transportation to the fish farm was carried out in live fish tanks with a volume of 1 and 3 m³ with water aerat

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Nicholson, Michele E., Michael D. Rennie, and Kenneth H. Mills. "Apparent extirpation of prey fish communities following the introduction of Northern Pike (Esox lucius)." Canadian Field-Naturalist 129, no. 2 (2015): 165. http://dx.doi.org/10.22621/cfn.v129i2.1697.

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We examined the long-term effects on prey fish communities of introducing Northern Pike (Esox lucius), a top predator fish, into small, Boreal Shield lakes lacking natural piscivore populations. During 1987–1994, Northern Pike were introduced into Lakes 110, 221, and 227 in the Experimental Lakes Area in northwestern Ontario, Canada. In Lake 227, prey fish were undetectable three years after the addition of Northern Pike. Although Northern Pike were removed from the lake by 1996, multiple independent visual and trapping surveys have yielded no evidence of any fish in Lake 227 since then. In 19

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Wu, Yi-Nan, Yu-Jun Ma, Wen-Ling Liu, and Wu-Zhao Zhang. "Modeling the Spatial Distribution of Plateau Pika (Ochotona curzoniae) in the Qinghai Lake Basin, China." Animals 9, no. 10 (2019): 843. http://dx.doi.org/10.3390/ani9100843.

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The plateau pika (Ochotona curzoniae) is a keystone species in the alpine rangeland ecosystem of the Qinghai–Tibetan Plateau. Most previous studies of habitat selection by plateau pika have been conducted at a local microhabitat scale; however, little is known about the relationship between the distribution of plateau pika and macrohabitat factors at broad spatial scales. Using a presence-only ecological niche model (maximum entropy, Maxent), we predicted the distribution of plateau pika in the Qinghai Lake basin based on a set of environmental and anthropogenic variables at 1-km spatial resol

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Theis, Sebastian, Jesse Shirton, Michael Barbeau, Jonathan L. W. Ruppert, and Mark S. Poesch. "Growth and Diet of Northern Pike (Esox lucius) in Boreal Lakes: Implications for Ecosystem Management." Hydrobiology 4, no. 1 (2025): 1. https://doi.org/10.3390/hydrobiology4010001.

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An important top-down predator, the northern pike (Esox lucius), faces harsh environmental conditions in the northern boreal ecoregion. They are often managed for recreational fishing and, more recently, to create environmental offsets; strategies aimed at balancing ecological impacts by enhancing or restoring habitats. Our study examines northern pike populations in two remote boreal lakes in northern Alberta: Steepbank and Wappau. The lakes differ in size, vegetation cover, and trophic status, providing a natural experiment for investigating northern pike growth, condition, diet, and populat

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LIU, HANWU, LI ZHOU, WEI LIU, and HUAKUN ZHOU. "USING A CELLULAR-AUTOMATA MODEL TO INVESTIGATE THE EFFECTS OF GRAZING ON PLATEAU PIKA POPULATION DYNAMICS." International Journal of Biomathematics 04, no. 03 (2011): 275–87. http://dx.doi.org/10.1142/s179352451100126x.

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The plateau pika is a keystone species of Qinghai–Tibet plateau, but its overabundance aggravates the degradation of alpine meadow. Grazing is the most convenient manner to utilize alpine meadow. Grazing would change vegetation condition, that is, change the habitat of plateau pika and so lead to variation of plateau pika population. Based on ecological characteristics of plateau pika and alpine meadow, a cellular-automata model is established to investigate the influence of grazing on dynamics of plateau pika population. Vegetation shortens with the increase of grazing intensity. When grazing

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Zhang, Lin, Guan Jun Chang, Lu Bin Miao, and Run Xiong Lin. "Synthesis and Characterization of Novel Fluorene-Based Poly(Imino Ketone)s." Advanced Materials Research 335-336 (September 2011): 1086–89. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.1086.

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Fluorene-based poly(imino ketone)s (PIKF) were designed and synthesized by reacting 1,4-Bis-(4-bromobenzoyl)-benzene and 9,9-bis(3-R-4-aminophenyl)fluorine (R: H, CH3 or F). The structures of the resulting polymers were characterized by FT-IR, 1H NMR spectroscopy and elemental analysis. The thermo and optical properties of PIKF were evaluated. Good solubility of PIKF in ordinary organic solvents such as THF and chloroform was confirmed. PIKF were amorphous at room temperature. No phase transition except for Tg was confirmed in the DSC analysis. PIKF displayed a high glass transition temperatur

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Spens, Johan, and John P. Ball. "Salmonid or nonsalmonid lakes: predicting the fate of northern boreal fish communities with hierarchical filters relating to a keystone piscivore." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 9 (2008): 1945–55. http://dx.doi.org/10.1139/f08-103.

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We determine if lacustrine salmonids show large-scale patterns of coexistence with the keystone predator northern pike ( Esox lucius ) and test an approach to predict fish communities using coexistence rules set in the context of three hierarchical filters that a species must pass to be present. The mutually exclusive species distribution patterns that we detected among 1029 lakes were repeatedly verified from results of whole-lake interventions with rotenone and introductions. Essentially, pike did not coexist with self-sustaining salmonid populations in lakes. High connectivity to pike (deri

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De Ingeniis, Jessica, Nadia Raffaelli, Maurizio Ciani, and Ilaria Mannazzu. "Pichia anomala DBVPG 3003 Secretes a Ubiquitin-Like Protein That Has Antimicrobial Activity." Applied and Environmental Microbiology 75, no. 4 (2008): 1129–34. http://dx.doi.org/10.1128/aem.01837-08.

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ABSTRACT The yeast strain Pichia anomala DBVPG 3003 secretes a killer toxin (Pikt) that has antifungal activity against Brettanomyces/Dekkera sp. yeasts. Pikt interacts with β-1,6-glucan, consistent with binding to the cell wall of sensitive targets. In contrast to that of toxin K1, secreted by Saccharomyces cerevisiae, Pikt killer activity is not mediated by an increase in membrane permeability. Purification of the toxin yielded a homogeneous protein of about 8 kDa, which showed a marked similarity to ubiquitin in terms of molecular mass and N-terminal sequences. Pikt is also specifically rec

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Asylbekova, Saule Zhangirovna, Nina Sergeevna Badryzlova, Saya Kashkinbayevna Koyshibaeva, and Kuanysh Baibulatovich Isbekov. "Economic efficiency of forming pike perch broodstocks in fish farms of Kazakhstan." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2020, no. 2 (2020): 106–15. http://dx.doi.org/10.24143/2072-9502-2020-2-106-115.

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The article highlights the problem of the industrial press on the pike perch population in all reservoirs of Kazakhstan and the sharp decline in its population due to increased exports of pike perch to Europe, which led to the need to fill the shortage of fish stock by forming pike perch broodstocks in the fish farms and increasing the importance of aquaculture. There are presented the results of introducing the technology of pike perch broodstocks formation in conditions of the fish farm HalykBalyk, LLP, which is carried out in two ways: by a method of domestication that provides catching pik

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Turner, L. J., and W. C. Mackay. "Use of Visual Census for Estimating Population Size in Northern Pike (Esox lucius)." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 11 (1985): 1835–40. http://dx.doi.org/10.1139/f85-231.

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A stratified systematic sampling regime was used to survey numbers of northern pike (Esox lucius) (age 1 yr or older) on five different 2-d sampling periods during the summer months (June, July, and August) in Roi Lake, Alberta, a small, deep, meromictic lake with a simple basin morphometry and high water clarity. The final combined estimate was 180 ± 39 northern pike (23 pike/ha of lake surface). Detailed underwater observation within a specified area was used to assess depth distribution, sample independence, and reaction of northern pike to the presence of the observer. Northern pike select

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Yuditya, Azzahra, Arini Hardjanto, and Ujang Sehabudin. "Fluktuasi Harga dan Integrasi Pasar Cabai Merah Besar (Studi Kasus: Pasar Induk kramat Jati dan Pasar Eceran di DKI Jakarta)." Indonesian Journal of Agriculture Resource and Environmental Economics 2, no. 1 (2023): 1–13. http://dx.doi.org/10.29244/ijaree.v2i1.50669.

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Fluktuasi harga pangan merupakan fenomena yang menjadi perhatian yang serius yang dapat memengaruhi tingkat inflasi. Salah satu kelompok sayuran yang menyumbang inflasi adalah cabai merah besar. Penelitian ini bertujuan untuk menganalisis pola perkembangan harga cabai merah besar di PIKJ dan di lima pasar eceran di DKI Jakarta, faktor – faktor yang memengaruhi flukuasi harga cabai merah besar di PIKJ, peramalan harga cabai merah besar di PIKJ tahun 2023, dan integrasi pasar antara pasar grosir dengan pasar eceran di DKI Jakarta. Metode yang digunakan adalah metode analisis deskriptif, ARIMA, d

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Barabanov, Vitali Victorovich, Maxim Nikolaevich Gorokhov, Tatyana Anatolievna Solokhina, and Natalia Vadimovna Levashina. "The impact of fishing on the biological structure of the pike Esox lucius (L.) population of the Volga River avandelta." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2023, no. 4 (2023): 18–25. http://dx.doi.org/10.24143/2073-5529-2023-4-18-25.

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The main area of pike habitat and fishing is the avandelta of the Volga River. Pike fishing is conducted by passive fishing gear - mainly by secrets, to a lesser extent by nets. The main part of the pike catch traditionally falls in the spring period, when it forms pre-spawning and spawning clusters. Since 2010, official pike catches have been declining in March and April, due to an increase in illegal seizures. Pike caviar, due to its high nutritional qualities and demand among the population, has a high cost, which contributes to the massive concealment of commercial catches and poaching. Ov

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Dewhurst, Marit, Lia O'Neill Moanike‘Ala Ah-Lan Keawe, Marsha MacDowell, Cherie Okada-Carlson, and Annette Ku‘Uipolani Wong. "Ka ulana ‘ana i ka piko (In Weaving You Begin at the Center): Perspectives from a Culturally Specific Approach to Art Education." Harvard Educational Review 83, no. 1 (2013): 136–44. http://dx.doi.org/10.17763/haer.83.1.nj05h4567xw58738.

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“It starts at the piko.”1 For Kanaka Maoli, the piko is extremely important. We have at least three “piko.” There is one located on our head, at the fontanel. The second is located at our navel, the third, our genitals. Each has a significant purpose, function, and meaning. The phrase “It starts at the piko” is a poignant frame for our reflection on Hawaiian lau hala weaving as a source of knowledge, spirituality, and genealogy.

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Dulski, Tomasz, Roman Kujawa, Martyna Godzieba, and Slawomir Ciesielski. "Effect of Salinity on the Gut Microbiome of Pike Fry (Esox lucius)." Applied Sciences 10, no. 7 (2020): 2506. http://dx.doi.org/10.3390/app10072506.

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The increasing popularity of pike in angling and fish farming has created a need to increase pike production. However, intensive pike farming is subject to limitations due to diseases and pathogens. Sodium chloride (NaCl) could be a good alternative to chemotherapeutics, especially for protecting the fish against pathogens and parasites at early life stages. However, the impact of high salinity on the symbiotic bacteria inhabiting freshwater fish is still unclear. Therefore, our objective was to analyze the gut microbiome to find possible changes caused by salinity. In this study, the influenc

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Soupir, Craig A., Michael L. Brown, and Larry W. Kallemeyn. "Trophic ecology of largemouth bass and northern pike in allopatric and sympatric assemblages in northern boreal lakes." Canadian Journal of Zoology 78, no. 10 (2000): 1759–66. http://dx.doi.org/10.1139/z00-126.

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Largemouth bass (Micropterus salmoides) and northern pike (Esox lucius) are top predators in the food chain in most aquatic environments that they occupy; however, limited information exists on species interactions in the northern reaches of largemouth bass distribution. We investigated the seasonal food habits of allopatric and sympatric assemblages of largemouth bass and northern pike in six interior lakes within Voyageurs National Park, Minnesota. Percentages of empty stomachs were variable for largemouth bass (38-54%) and northern pike (34.7-66.7%). Fishes (mainly yellow perch, Perca flave

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Guseva, Yulia Anatolievna, Aleksey Alekseevich Vasiliev, and Margarita Aleksandrovna Kamardina. "Amino acid analysis of muscle tissue of walleye and pike of the Volgograd reservoir." Agrarian Scientific Journal, no. 11 (November 25, 2022): 68–70. http://dx.doi.org/10.28983/asj.y2022i11pp68-70.

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The purpose of our study is to analyze the data on the amino acid composition of the muscle tissue of common walleye and common pike obtained in the natural conditions of the Volgograd reservoir and to establish their nutritional value for the human body. The data obtained indicate that the quantitative and qualitative composition of amino acids of the muscle tissue of hydrobionts is similar; there is a general high content of glutamic and aspartic acids, arginine, lysine, isoleucine and leucine. The total number of proteinogenic amino acids exceeds the muscle tissue of walleye by 15.58%. It i

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Mirza, Reehan, and Douglas Chivers. "BEHAVIOURAL RESPONSES TO CONSPECIFIC DISTURBANCE CHEMICALS ENHANCE SURVIVAL OF JUVENILE BROOK CHARR, SALVELINUS FONTINALIS, DURING ENCOUNTERS WITH PREDATORS." Behaviour 139, no. 9 (2002): 1099–109. http://dx.doi.org/10.1163/15685390260437272.

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AbstractSeveral species of aquatic organisms release chemical cues upon detecting predators. These chemicals may serve to 'warn' nearby conspecifics of the predator and hence have been termed disturbance cues. Disturbance cues are thought to be low-level indicators of risk to which prey animals respond with antipredator behaviour. However, little is known about the distribution of disturbance cues among different taxa or how prey animals use these cues to mediate their risk of predation. In this study we exposed brook charr (Salvelinus fontinalis) to water from a tank containing cues of distur

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Zarubin, O. L., V. A. Kostyuk, I. A. Malyuk, and A. A. Zalissky. "Accumulation of 137Cs in a pike perch (Lucioperca lucioperca L.)." Nuclear Physics and Atomic Energy 13, no. 2 (2012): 175–81. https://doi.org/10.15407/jnpae2012.02.175.

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Long-term researches of specific activity of 137Cs at a pike perch (Lucioperca lucioperca L.) from Kanevskoe reservoir and cooling-pond of ChNPP are summed up. Distribution of 137Cs on organs and tissues of a pike perch occurred more slowly, than at the majority of other species of fishes. It is established that water temperature does not influence on specific activity of 137Cs at a pike perch. Increase of specific activity of 137Cs at a pike perch with increase in weight of the individual is registered. Dynamics of decrease of specific activity of 137Cs and dynamics of factors of accumulation

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