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Article ; Online: Ecotoxicological Assessment of Seaweed-Based Crop Biostimulant on Earthworm Eudrilus eugeniae Kinb.

Chanthini, Kanagaraj Muthu-Pandian / Senthil-Nathan, Sengottayan

Methods in molecular biology (Clifton, N.J.)

2024 Volume 2753, Page(s) 331–338

Abstract: Aqueous extracts from green seaweeds Chaetomorpha antennina and Ulva flexuosa (SWE) had considerable impacts on the growth and development of tomato plants; it was evident that SWE could be widely applied as agricultural biostimulants as one among a ... ...

Abstract	Aqueous extracts from green seaweeds Chaetomorpha antennina and Ulva flexuosa (SWE) had considerable impacts on the growth and development of tomato plants; it was evident that SWE could be widely applied as agricultural biostimulants as one among a promising strategy of sustainable agriculture. With a higher probability of SWE to replace synthetic agrochemicals, we describe a procedure here to perform an ecotoxicological assessment of liquid SWE on the earthworm, Eudrilus eugeniae Kinb with respect to their growth, survivability, and reproduction.
MeSH term(s)	Animals ; Oligochaeta ; Vegetables ; Agriculture ; Seaweed ; Chlorophyta
Language	English
Publishing date	2024-01-29
Publishing country	United States
Document type	Journal Article
ISSN	1940-6029
ISSN (online)	1940-6029
DOI	10.1007/978-1-0716-3625-1_17
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Article ; Online: Effects of elevated CO

Senthil-Nathan, Sengottayan

Scientific reports

2021 Volume 11, Issue 1, Page(s) 8905

Abstract: The elevated ... ...

Abstract	The elevated CO
MeSH term(s)	Animals ; Carbon Dioxide/metabolism ; Hemiptera/physiology ; Oryza/growth & development ; Oryza/parasitology ; Plant Diseases/parasitology ; Plant Leaves/growth & development ; Plant Leaves/parasitology
Chemical Substances	Carbon Dioxide (142M471B3J)
Language	English
Publishing date	2021-04-26
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-021-87992-4
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Article ; Online: Abundance and distribution of recent benthic foraminifera from the southwestern part of the Bay of Bengal

S. Harikrishnan / D. Senthil Nathan

Geosystems and Geoenvironment, Vol 2, Iss 4, Pp 100209- (2023)

2023

Abstract: Foraminifers are ubiquitous and abundant organisms in the marine environment, sensitive to different environmental variables such as pH, dissolved oxygen, salinity, temperature, organic matter and substrate. In the present study, environmental variables ... ...

Abstract	Foraminifers are ubiquitous and abundant organisms in the marine environment, sensitive to different environmental variables such as pH, dissolved oxygen, salinity, temperature, organic matter and substrate. In the present study, environmental variables and benthic foraminiferal assemblages from 32 surface sediment samples belonging to different water depths were studied to understand the shelf and slope environment of the southwestern Bay of Bengal. Statistical methods such as cluster and principal component analysis (PCA) were used to infer the relationship existing among various foraminiferal assemblages, bathymetry, sediment and bottom water characteristics. Statistical analysis yielded four assemblages, of which assemblage-I is dominated by Nonion faba, Rotalidium annectens, Asterorotalia pulchella, Elphidium crispum, and Amphistegina radiata, and is confined to the shallowest inner shelf region (5 to 35 m water depth) with sandy sediments indicating high-energy condition. Assemblage-II is marked by the abundance of Cibicidoides wuellerstorfi, Hanzawaia concentrica, Quinqueloculina agglutinans, Quinqueloculina seminula, Quinqueloculina lamarckiana, Ammonia beccarri, and Ammonia tepida which are associated with the middle shelf region (water depth 35 to 70 m) with sandy to slightly muddy sand sediments. Assemblage-III is dominated by Asterorotalia dentata, Quinqueloculina venusta, Cancris communis, Cassidulina laevigata, and N. costiferum which occur at a depth of 70 to 170 m in the outer shelf, and are highly associated with slightly muddy sand to muddy sand. Whereas, assemblage -IV includes Uvigerina mediterranea, Bolivina dilatata, Bolivina robusta, and Bulimina marginata foraminiferal species that are abundant in the upper slope (170–244 m water depth) and are confined to muddy sand and sandy mud with low dissolved oxygen in the bottom water. The above assemblages depict that the abundance and distribution of foraminifera are largely controlled by substrate, energy conditions and environmental variables ...
Keywords	Benthic foraminifera ; Bay of bengal ; Shelf sediments ; Cluster analysis ; Principal component analysis ; Physical geography ; GB3-5030
Subject code	550
Language	English
Publishing date	2023-11-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
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Article: A Review of Resistance Mechanisms of Synthetic Insecticides and Botanicals, Phytochemicals, and Essential Oils as Alternative Larvicidal Agents Against Mosquitoes.

Senthil-Nathan, Sengottayan

Frontiers in physiology

2020 Volume 10, Page(s) 1591

Abstract: Mosquitoes are a serious threat to the society, acting as vector to several dreadful diseases. Mosquito management programes profoundly depend on the routine of chemical insecticides that subsequently lead to the expansion of resistance midst the vectors, ...

Abstract	Mosquitoes are a serious threat to the society, acting as vector to several dreadful diseases. Mosquito management programes profoundly depend on the routine of chemical insecticides that subsequently lead to the expansion of resistance midst the vectors, along with other problems such as environmental pollution, bio magnification, and adversely affecting the quality of public and animal health, worldwide. The worldwide risk of insect vector transmitted diseases, with their associated illness and mortality, emphasizes the need for effective mosquitocides. Hence there is an immediate necessity to develop new eco-friendly pesticides. As a result, numerous investigators have worked on the development of eco-friendly effective mosquitocidal compounds of plant origin. These products have a cumulative advantage of being cost-effective, environmentally benign, biodegradable, and safe to non-target organisms. This review aims at describing the current state of research on behavioral, physiological, and biochemical effects of plant derived compounds with larvicidal effects on mosquitoes. The mode of physiological and biochemical action of known compounds derived from various plant families as well as the potential of plant secondary metabolites, plant extracts, and also the essential oils (EO), as mosquitocidal agents are discussed. This review clearly indicates that the application of vegetal-based compounds as mosquito control proxies can serve as alternative biocontrol methods in mosquito management programes.
Language	English
Publishing date	2020-02-25
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2564217-0
ISSN	1664-042X
ISSN	1664-042X
DOI	10.3389/fphys.2019.01591
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Article ; Online: Effects of elevated CO2 on resistant and susceptible rice cultivar and its primary host, brown planthopper (BPH), Nilaparvata lugens (Stål)

Sengottayan Senthil-Nathan

Scientific Reports, Vol 11, Iss 1, Pp 1-

2021 Volume 15

Abstract: Abstract The elevated CO2 (eCO2) has positive response on plant growth and negative response on insect pests. As a contemplation, the feeding pattern of the brown plant hopper, Nilaparvata lugens Stål on susceptible and resistant rice cultivars and their ...

Abstract	Abstract The elevated CO2 (eCO2) has positive response on plant growth and negative response on insect pests. As a contemplation, the feeding pattern of the brown plant hopper, Nilaparvata lugens Stål on susceptible and resistant rice cultivars and their growth rates exposed to eCO2 conditions were analyzed. The eCO2 treatment showed significant differences in percentage of emergence and rice biomass that were consistent across the rice cultivars, when compared to the ambient conditions. Similarly, increase in carbon and decrese in nitrogen ratio of leaves and alterations in defensive peroxidase enzyme levels were observed, but was non-linear among the cultivars tested. Lower survivorship and nutritional indices of N. lugens were observed in conditions of eCO2 levels over ambient conditions. Results were nonlinear in manner. We conclude that the plant carbon accumulation increased due to eCO2, causing physiological changes that decreased nitrogen content. Similarly, eCO2 increased insect feeding, and did alter other variables such as their biology or reproduction.
Keywords	Medicine ; R ; Science ; Q
Subject code	580
Language	English
Publishing date	2021-04-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
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Article: Comparison of intraarticular injection of platelet-rich plasma following arthrocentesis, with sodium hyaluronate and conventional arthrocentesis for management of internal derangement of temporomandibular joint.

Ramakrishnan, Divya Sanjeevi / Kandamani, Janani / Senthil Nathan, K P

National journal of maxillofacial surgery

2022 Volume 13, Issue 2, Page(s) 254–261

Abstract: Aim: The aim of the study is to compare the efficacy of platelet-rich plasma (PRP) for the management of internal derangement of temporomandibular joint (TMJ).: Settings and design: Thirty-three patients were selected from the pool of patients ... ...

Abstract	Aim: The aim of the study is to compare the efficacy of platelet-rich plasma (PRP) for the management of internal derangement of temporomandibular joint (TMJ). Settings and design: Thirty-three patients were selected from the pool of patients visiting the department of oral and maxillofacial surgery. Simple randomization was done. Subjects and methods: Patients with anterior disc displacement without reduction (DDWOR) were indicated for arthrocentesis. Group A patients are treated with PRP, Group B patients with sodium hyaluronate following arthrocentesis, and Group C patients were treated with arthrocentesis alone. Postoperative pain and maximal incisal opening are the primary outcomes evaluated. Statistical analysis used: The collected data were analyzed with IBM. SPSS statistics software 23.0 version and the one-way ANOVA with Tukey's Results: The mean age is 33 years, with female predominance. The statistical significant differences ( Conclusions: Our study has concluded that the intraarticular injection of PRP is an effective management for anterior DDWOR of TMJ than intraarticular injection of sodium hyaluronate and arthrocentesis in, reducing the pain and improving the interincisal distance in patients with DDWOR, thus providing a rapid recovery and improved quality of life.
Language	English
Publishing date	2022-06-15
Publishing country	India
Document type	Journal Article
ZDB-ID	2653583-X
ISSN	2229-3418 ; 0975-5950
ISSN (online)	2229-3418
ISSN	0975-5950
DOI	10.4103/njms.NJMS_94_20
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Article ; Online: Classification of cognitive impairment using electroencephalography for clinical inspection.

Easwaran, Karuppathal / Ramakrishnan, Kalpana / Jeyabal, Senthil Nathan

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine

2024 Volume 238, Issue 3, Page(s) 358–371

Abstract: Impairment in cognitive skill though set-in due to various diseases, its progress is based on neuronal degeneration. In general, cognitive impairment (CI) is divided into three stages: mild, moderate and severe. Quantification of CI is important for ... ...

Abstract	Impairment in cognitive skill though set-in due to various diseases, its progress is based on neuronal degeneration. In general, cognitive impairment (CI) is divided into three stages: mild, moderate and severe. Quantification of CI is important for deciding/changing therapy. Attempted in this work is to quantify electroencephalograph (EEG) signal and group it into four classes (controls and three stages of CI). After acquiring resting state EEG signal from the participants, non-local and local synchrony measures are derived from phase amplitude coupling and phase locking value. This totals to 160 features per individual for each task. Two types of classification networks are constructed. The first one is an artificial neural network (ANN) that takes derived features and gives a maximum accuracy of 85.11%. The second network is convolutional neural network (CNN) for which topographical images constructed from EEG features becomes the input dataset. The network is trained with 60% of data and then tested with remaining 40% of data. This process is performed in 5-fold technique, which yields an average accuracy of 94.75% with only 30 numbers of inputs for every individual. The result of the study shows that CNN outperforms ANN with a relatively lesser number of inputs. From this it can be concluded that this method proposes a simple task for acquiring EEG (which can be done by CI subjects) and quantifies CI stages with no overlapping between control and test group, thus making it possible for identifying early symptoms of CI.
MeSH term(s)	Humans ; Electroencephalography/methods ; Neural Networks, Computer ; Cognitive Dysfunction/diagnosis
Language	English
Publishing date	2024-02-16
Publishing country	England
Document type	Journal Article
ZDB-ID	1065942-0
ISSN	2041-3033 ; 0046-2039 ; 0954-4119
ISSN (online)	2041-3033
ISSN	0046-2039 ; 0954-4119
DOI	10.1177/09544119241228912
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Article ; Online: Effect of methyl jasmonate (MeJA)-induced defenses in rice against the rice leaffolder Cnaphalocrocis medinalis (Guenèe) (Lepidoptera: Pyralidae).

Senthil-Nathan, Sengottayan

Pest management science

2018 Volume 75, Issue 2, Page(s) 460–465

Abstract: Background: Methyl jasmonate (MeJA) activates host defense mechanisms against insect pests of agricultural importance, and regulates defense responses against living and non-living stresses in various plant species. Rice leaf-folder (Cnaphalocrocis ... ...

Abstract	Background: Methyl jasmonate (MeJA) activates host defense mechanisms against insect pests of agricultural importance, and regulates defense responses against living and non-living stresses in various plant species. Rice leaf-folder (Cnaphalocrocis medinalis Guenèe, Lepidoptera: Pyralidae) feeding activity and mortality were evaluated after MeJA treatment of rice plants ASD-16. Results: Rice plant resistance was activated through the topical application of MeJA to rice leaves. Feeding deterrence occurred with application of 2.5 and 5 mm MeJA solution. Feeding activity and consumption rates were significantly different, being reduced compared with controls post MeJA treatment. Significantly greater mortality was seen in second instars post treatment with 2.5 and 5 mm MeJA. Survival was significantly reduced for larvae and adults post treatment. Conclusion: Application of MeJA as a topical spray onto rice plants significantly altered the biology and survival of the leaf-folder, having an effect on all life stages. © 2018 Society of Chemical Industry.
MeSH term(s)	Acetates/administration & dosage ; Animals ; Antibiosis ; Cyclopentanes/administration & dosage ; Feeding Behavior ; Larva/growth & development ; Larva/physiology ; Moths/growth & development ; Moths/physiology ; Oxylipins/administration & dosage ; Plant Growth Regulators ; Plant Leaves ; Plant Proteins/metabolism
Chemical Substances	Acetates ; Cyclopentanes ; Oxylipins ; Plant Growth Regulators ; Plant Proteins ; methyl jasmonate (900N171A0F)
Language	English
Publishing date	2018-09-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2001705-4
ISSN	1526-4998 ; 1526-498X
ISSN (online)	1526-4998
ISSN	1526-498X
DOI	10.1002/ps.5139
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Article ; Online: Physiological and biochemical alterations in Vigna rdiate L. triggered by sesame derived elicitors as defense mechanism against Rhizoctonia and Macrophomina infestation.

Kalaivani, Kandaswamy / Senthil-Nathan, Sengottayan / Stanley-Raja, Vethamonickam / Vasantha-Srinivasan, Prabhakaran

Scientific reports

2023 Volume 13, Issue 1, Page(s) 13884

Abstract: Improving agricultural products by the stimulation of plant growth and defense mechanisms by priming with plant extracts is needed to attain sustainability in agriculture. This study focused to consider the possible improvement in Vigna radiata L. seed ... ...

Abstract	Improving agricultural products by the stimulation of plant growth and defense mechanisms by priming with plant extracts is needed to attain sustainability in agriculture. This study focused to consider the possible improvement in Vigna radiata L. seed germination rate, plant growth, and protection against the natural stress by increasing the defense mechanisms through the incorporation of Sesamum indicum phytochemical compounds with pre-sowing seed treatment technologies. The gas chromatography coupled with mass spectroscopy (GC-MS) analysis revealed that the methanol extract of S. indicum leaf extract contained eight major bioactive compounds, namely, 2-ethylacridine (8.24%), tert-butyl (5-isopropyl-2-methylphenoxy) dimethylsilane (13.25%), tris(tert-butyldimethylsilyloxy) arsane (10.66%), 1,1,1,3,5,5,5-heptamethyltrisiloxane (18.50%), acetamide, N-[4-(trimethylsilyl) phenyl (19.97%), 3,3-diisopropoxy-1,1,1,5,5,5-hexamethyltrisiloxane (6.78%), silicic acid, diethyl bis(trimethylsilyl) ester (17.71%) and cylotrisiloxane, hexamethyl-(4.89%). The V. radiata seeds were treated with sesame leaf extract seeds at concentrations 0, 10, 25, 50, and 100 mg/L. Sesame leaf extract at 50 and 100 mg/L concentrations was effective in increasing the germination percentage and the fresh and dry weights of roots and shoots. The increased peroxidase activity was noticed after treatment with S. indicum extract. In addition, disease percentage (< 60%) of both fungal pathogens (Rhizoctonia and Macrophomina) was significantly reduced in V. radiata plants treated with 100 mg/L of sesame leaf extract. These results revealed that physiochemical components present in S. indicum mature leaf extract significantly enhanced growth and defense mechanism in green gram plants.
MeSH term(s)	Rhizoctonia ; Sesamum ; Vigna ; Agriculture ; Ascomycota ; Cortodoxone ; Defense Mechanisms
Chemical Substances	Cortodoxone (WDT5SLP0HQ)
Language	English
Publishing date	2023-08-24
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-39660-y
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Article: In-vitro antibacterial, antioxidant and anti-inflammatory and In-silico ADMET, molecular docking study on

Manimegalai, Peraman / Selvam, Kuppusamy / Prakash, Palanisamy / Kirubakaran, Dharmalingam / Shivakumar, Muthugounder Subaramanian / SenthilNathan, Sengottayan

In silico pharmacology

2023 Volume 11, Issue 1, Page(s) 25

Abstract: The new sources of antimicrobial and antioxidant agents for methanol extracts ... ...

Abstract	The new sources of antimicrobial and antioxidant agents for methanol extracts of
Language	English
Publishing date	2023-09-23
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2702993-1
ISSN	2193-9616
ISSN	2193-9616
DOI	10.1007/s40203-023-00163-3
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