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1. Onion (Allium cepa L.) Yield and Growth Dynamics Response to In-Season Patterns of Nitrogen and Sulfur Uptake

Author:
Przygocka-Cyna, Katarzyna; Barłóg, Przemysław; Grzebisz, Witold; Spiżewski, Tomasz
Source:
Agronomy 2020 v.10 no.8
ISSN:
2073-4395
Subject:
Allium cepa,   etc   ; biomass; growth models; nitrogen; onions; sulfur; total nitrogen;     Show all 7 Subjects
Abstract:
... The in-season trend of onion biomass and its yield depend on the dynamics of nitrogen (N) and sulfur (S) uptake. This hypothesis was verified based on a three-year (2009, 2010, 2011) field study (Poznan University of Life Sciences). The experimental factors consisted of N: 0, 60, 120 and S: 0, 30, 60 kg ha⁻¹. The dynamics of onion total dry weight (TDW), total N uptake (TNU), and total S uptake (T ...
DOI:
10.3390/agronomy10081146

2. Biogenic approach for fabricating biocompatible carbon dots and their application in colorimetric and fluorometric sensing of lead ion

Author:
Chauhan, Pooja; Chaudhary, Savita; Kumar, Rajeev
Source:
Journal of cleaner production 2021 v.279 pp. 123639
ISSN:
0959-6526
Subject:
Allium cepa,   etc   ; Cenchrus americanus; Fourier transform infrared spectroscopy; Vigna radiata; absorbance; absorption; algae; biocompatibility; carbon quantum dots; cleaning; colorimetry; detection limit; economic feasibility; ecosystems; emissions factor; energy-dispersive X-ray analysis; fluorescence; fluorometry; fungi; germination; heat treatment; lead; metal ions; natural resources; pH; pollution; seeds; solubility; toxins; transmission electron microscopy; value added; wastewater; wastewater treatment; wavelengths;     Show all 34 Subjects
Abstract:
... The rapid growth in the industrial and urban sector has filled enormous stress on environment. The exponential use of chemicals especially metal ions has raised the pollution index and affected the health of living beings. Therefore, it is highly essential need to monitor and remove these metal ion toxins by the advanced materials which itself non-lethal, bio-congenial and easily workable with hig ...
DOI:
10.1016/j.jclepro.2020.123639

3. Common garlic (Allium sativum L.) has potent Anti-Bacillus anthracis activity

Author:
Kaur, Rajinder; Tiwari, Atul; Manish, Manish; Maurya, Indresh K.; Bhatnagar, Rakesh; Singh, Samer
Source:
Journal of ethnopharmacology 2021 v.264 pp. 113230
ISSN:
0378-8741
Subject:
Allium cepa,   etc   ; Aegle marmelos; Allium sativum; Azadirachta indica; Bacillus anthracis; Berberis asiatica; Coriandrum sativum; Correa; Curcuma longa; Cynodon dactylon; Mangifera indica; Morus australis; Morus nigra; Ocimum gratissimum; Ocimum tenuiflorum; Psidium guajava; Zingiber officinale; anthrax; antibacterial properties; antibiotics; bile salts; dysentery; endemic diseases; esters; food plants; garlic; gas chromatography-mass spectrometry; gastrointestinal diseases; gastrointestinal system; ginger; guavas; indigenous knowledge; minimum inhibitory concentration; onions; pH; phthalic acid; steroids; thermal stability; traditional medicine; turmeric; Africa; India;     Show all 42 Subjects
Abstract:
... Gastrointestinal anthrax, a disease caused by Bacillus anthracis, remains an important but relatively neglected endemic disease of animals and humans in remote areas of the Indian subcontinent and some parts of Africa. Its initial symptoms include diarrhea and stomachache. In the current study, several common plants indicated for diarrhea, dysentery, stomachache or as stomachic as per traditional ...
DOI:
10.1016/j.jep.2020.113230

4. Integrating cultivar resistance and disease warning system to control downy mildew of onion

Author:
Araújo, E. R.; Resende, R. S.; Alves, D. P.; Higashikawa, F. S.
Source:
Australasian plant disease notes 2020 v.15 no.1 pp. 1
ISSN:
1833-928X
Subject:
Allium cepa,   etc   ; cultivars; downy mildew; farmers; fungicides; onions; production costs; profitability;     Show all 8 Subjects
Abstract:
... The management of downy mildew of onion requires frequent applications of protective and systemic fungicides. In order to reduce production costs, we evaluated a control strategy that integrated the use of resistant experimental cultivar and a disease warning system. Regardless of the type of management adopted, the experimental cultivar was always more productive. In turn, management based on the ...
DOI:
10.1007/s13314-019-0370-5

5. Propineb efficiency in controlling downy mildew of onion under field conditions

Author:
Araújo, E. R.; Resende, R. S.
Source:
Australasian plant disease notes 2020 v.15 no.1 pp. 34
ISSN:
1833-928X
Subject:
Allium cepa,   etc   ; active ingredients; chlorothalonil; crop yield; disease course; downy mildew; mancozeb; mefenoxam; onions;     Show all 9 Subjects
Abstract:
... Downy mildew of onion has worldwide occurrence. This study aimed to evaluate the effect of weekly sprays of different active ingredients on the area under a disease progress curve (AUDPC) and on the commercial yield of onion, under field conditions. We observed that propineb sprays resulted in the highest values of yield in 2017 (32.98 t ha⁻¹) and 2018 (20.70 t ha⁻¹). Propineb (130.66) and metalax ...
DOI:
10.1007/s13314-020-00403-x

6. High-Quality Genome Assembly of Peronospora destructor, the Causal Agent of Onion Downy Mildew

Author:
Natesan, Karthi; Park, Ji Yeon; Kim, Cheol-Woo; Park, Dong Suk; Kwon, Young-Seok; Back, Chang-Gi; Cho, Heejung
Source:
Molecular plant-microbe interactions 2020 v.33 no.5 pp. 718-720
ISSN:
1943-7706
Subject:
Allium cepa,   etc   ; Peronospora destructor; downy mildew; genome; genome assembly; genomics; nucleotide sequences; onions; pathogens;     Show all 9 Subjects
Abstract:
... Peronospora destructor is an obligate biotrophic oomycete that causes downy mildew on onion (Allium cepa). Onion is an important crop worldwide, but its production is affected by this pathogen. We sequenced the genome of P. destructor using the PacBio sequencing platform, and de novo assembly resulted in 74 contigs with a total contig size of 29.3 Mb and 48.48% GC content. Here, we report the firs ...
DOI:
10.1094/MPMI-10-19-0280-A

7. Treated Textile Effluents: Cytotoxic and Genotoxic Effects in the Natural Aquatic Environment

Author:
Wijeyaratne, W. M. Dimuthu Nilmini; Wickramasinghe, P. G. Minola Udayangani
Source:
Bulletin of environmental contamination and toxicology 2020 v.104 no.2 pp. 245-252
ISSN:
0007-4861
Subject:
Allium cepa,   etc   ; aquatic environment; bioassays; chemical treatment; cytotoxicity; genotoxicity; mitosis; textile mill effluents;     Show all 8 Subjects
Abstract:
... Textile effluent treatment methods use biological and chemical treatments to reduce the toxicity and to comply with standard effluent discharge limits. However, trace amounts of pollutants can affect the biological organisms in the receiving environment. The present study used Allium cepa bio assay to assess the cytotoxic and genotoxic effects of treated textile effluents discharged to the natural ...
DOI:
10.1007/s00128-019-02768-x

8. Occurrence of Green Semilooper Chrysodeixis acuta Walker (Lepidoptera: Noctuidae) in Onion (Allium cepa L.) (Amaryllidaceae)

Author:
Karuppaiah, Vadivelu; Soumia, Parakkattu Sulochanan; Shinde, Priyanka Shashikanth; Singh, Major
Source:
TheFlorida entomologist 2020 v.102 no.4 pp. 783-784
ISSN:
1938-5102
Subject:
Allium cepa,   etc   ; Chrysodeixis; crops; defoliation; instars; larvae; leaves; onions; pests; India;     Show all 10 Subjects
Abstract:
... The occurrence of green semilooper, Chrysodeixis acuta Walker (Lepidoptera: Noctuidae) in onion was recorded for the first time from the Pune district of Maharashtra State of India. Weekly observations of the pest and its damage were made to assess the intensity of the caterpillar population and its impact to the onion crop. Early instar larvae of C. acuta feed by scraping the leaves, whereas the ...
DOI:
10.1653/024.102.0418

9. Cytotoxic evaluation of glyphosate, using Allium cepa L. as bioindicator

Author:
Mercado, Seir Antonio Salazar; Caleño, Jesús David Quintero
Source:
The Science of the total environment 2020 v.700 pp. 134452
ISSN:
0048-9697
Subject:
Allium cepa,   etc   ; bulbs; chromosome breakage; chromosomes; cytotoxicity; glyphosate; meristems; mitosis; onions; root growth; roots; telophase;     Show all 12 Subjects
Abstract:
... Glyphosate is a chemical compound used mainly as a broad spectrum herbicide, it is recognized for its proven effectiveness and easy handling. It represents more than 60% of the world market of non-selective herbicides and is used in both agricultural fields and family gardens. The present study was designed to test the cytogenotoxic potential of glyphosate using the Allium cepa test as toxicity bi ...
DOI:
10.1016/j.scitotenv.2019.134452

10. Modeling the nonlinear elastic behavior of plant epidermis

Author:
Bidhendi, Amir J.; Li, Hongbo; Geitmann, Anja
Source:
Botany 2020 v.98 no.1 pp. 49-64
ISSN:
1916-2804
Subject:
Allium cepa,   etc   ; anisotropy; cell growth; cell walls; deformation; epidermis (plant); mechanical testing; models; onions; tensile strength;     Show all 10 Subjects
Abstract:
... Cell growth and organ development in plants are often correlated with the tensile behavior of the primary cell wall. To understand the mechanical behavior of plant material, various mechanical testing techniques have been employed, such as tensile testing of excised tissue samples. The onion (Allium cepa L.) epidermis has emerged as a model system for plant tissue mechanics. In this study, we perf ...
DOI:
10.1139/cjb-2019-0058

11. Yield prediction and validation of onion (Allium cepa L.) using key variables in narrowband hyperspectral imagery and effective accumulated temperature

Author:
Kang, Ye Seong; Jang, Si Hyeong; Park, Jun Woo; Song, Hye Young; Ryu, Chan Seok; Jun, Sae Rom; Kim, Seong Heon
Source:
Computers and electronics in agriculture 2020 v.178 pp. 105667
ISSN:
0168-1699
Subject:
Allium cepa,   etc   ; commercialization; crop yield; heat sums; hyperspectral imagery; least squares; models; multispectral imagery; onions; prediction; reflectance spectroscopy; yield forecasting;     Show all 12 Subjects
Abstract:
... In this study, hyperspectral imagery was used to develop models for predicting onion yields in two years (2017 and 2018). First, the bands for the full width half maximum (FWHM) measurement of 5 nm in the canopied areas were merged as FWHM 10, 25, and 50 nm. This was based on a commercialized band-pass filter that considered the development of the compact multispectral image sensors. Then, band ra ...
DOI:
10.1016/j.compag.2020.105667

12. DNA damages induced by both endotoxin and exotoxin produced by cyanobacteria.

Author:
Pamplona-Silva, Maria Tereza; Gonçalves, Letícia Cristina; Bittencourt-Oliveira, Maria do Carmo; Marin-Morales, Maria Aparecida
Source:
Chemosphere 2020 v.254 pp. 126716
ISSN:
0045-6535
Subject:
Allium cepa,   etc   ; Cyanobacteria; DNA; DNA damage; aquatic environment; biomass; endotoxins; exotoxins; mutagens; mutation; pollution; prokaryotic cells; toxicity;     Show all 13 Subjects
Abstract:
... Cyanobacteria are prokaryotes involved in the contamination of aquatic environments since they release toxins that are highly potent and dangerous for living organisms. Prokaryotes produce endo and exotoxins, among others. Exotoxins are highly toxic, while endotoxins have milder toxic effects. The present study evaluated the cytotoxicogenetic potency of both toxins studying them in different conce ...
DOI:
10.1016/j.chemosphere.2020.126716

13. Cytotoxic and Genotoxic Assessment of Silicon Dioxide Nanoparticles by Allium and Comet Tests

Author:
Liman, Recep; Acikbas, Yaser; Ciğerci, İbrahim Hakkı; Ali, Muhammad Muddassir; Kars, Meltem Demirel
Source:
Bulletin of environmental contamination and toxicology 2020 v.104 no.2 pp. 215-221
ISSN:
0007-4861
Subject:
Allium cepa,   etc   ; DNA damage; biomedical research; cytotoxicity; genotoxicity; mutagens; nanomedicine; nanoparticles; particle size; root meristems; silica; silicon;     Show all 12 Subjects
Abstract:
... Silicon nanoparticles gained a great interest due to its use in biomedical research. It is considered as safe and has been used in nanomedicine. But literature still states its toxicity depending upon the size and dose of silicon nanoparticles. So, current study was aimed to evaluate the cytotoxicity and genotoxicity of silicon dioxide nanoparticles (SiO₂NPs) by Allium anaphase–telophase and Comet ...
DOI:
10.1007/s00128-020-02783-3

14. Tubulins’ Ensemble in Onion and Its Properties

Author:
Zubow, K.; Zubow, A.; Zubow, V. A.
Source:
Russian agricultural sciences 2019 v.45 no.1 pp. 30-34
ISSN:
1068-3674
Subject:
Allium cepa,   etc   ; mass spectrometry; microtubules; models; onions; roots; tubulin;     Show all 7 Subjects
Abstract:
... With an ensemble of tubulins in plants using gravitational mass spectroscopy (GMS), the dynamics of domains in the region of tubulin coil oscillations (43–60 kDa) in onion roots was searched. At the ends of roots, the signals from six tubulin oscillators with masses of 43.288, 46.231, 49.412, 52.698, 55.940, and 59.433 kDa were detected. They were then compared with those in the side part of the r ...
DOI:
10.3103/S1068367419010221

15. Breeding onion for resistance to Fusarium basal rot: comparison of field selection and artificial inoculation

Author:
Caligiore-Gei, Pablo F.; Ciotti, M. Lucía; Valdez, Jorge G.; Galmarini, Claudio R.
Source:
Tropical plant pathology 2020 v.45 no.5 pp. 493-498
ISSN:
1983-2052
Subject:
Allium cepa,   etc   ; Fusarium oxysporum; agronomic traits; breeding lines; breeding programs; bulbs; disease progression; fungicides; genetic resistance; inoculum; onions; pollinators; progeny; root systems; seeds; soil; Argentina;     Show all 17 Subjects
Abstract:
... Fusarium basal rot (FBR) is one of the main onion diseases in Argentina. The Onion Breeding National Program, held at INTA Experimental Station in La Consulta, Argentina, has developed onion breeding lines with increased resistance to FBR through a selection scheme performed under field conditions. The aim of the present work was to evaluate the achieved response to selection in the FBR resistance ...
DOI:
10.1007/s40858-020-00351-y

16. Attract and kill: spinosad containing spheres to control onion maggot (Delia antiqua)

Author:
Willett, Denis S; Filgueiras, Camila C; Nyrop, Jan P; Nault, Brian A
Source:
Pest management science 2020 v.76 no.8 pp. 2720-2725
ISSN:
1526-498X
Subject:
Allium cepa,   etc   ; Delia antiqua; crop losses; imagos; insect control; insect larvae; insect pests; insecticide application; insecticide resistance; mortality; onions; organic production; planting; production technology; spinosad;     Show all 15 Subjects
Abstract:
... BACKGROUND: Onion maggot (Delia antiqua) is a pest of onions worldwide. Current means of managing this pest rely heavily on prophylatic insecticide treatments at planting. These options may not be viable in organic production systems or situations where insecticide‐resistant populations occur. Here we explore the efficacy of an attract and kill strategy for control of D. antiqua evaluating the abi ...
DOI:
10.1002/ps.5818

17. Bacterial shoot blight of sweet crab apple caused by Pseudomonas viridiflava

Author:
Choi, Okhee; Lee, Yeyeong; Kang, Byeongsam; Kim, Seunghoe; Bae, Juyoung; Kim, Jinwoo
Source:
Forest pathology 2020 v.50 no.4 pp. e12603
ISSN:
1437-4781
Subject:
Allium cepa,   etc   ; Malus; Pseudomonas viridiflava; branches; gardens; leaf blight; leaves; onions; ornamental trees; pathogenicity; pathogens; ribosomal RNA; sequence analysis; shoot tips; tree diseases; urban forests; South Korea;     Show all 17 Subjects
Abstract:
... Sweet crab apple (Malus coronaria) is a popular ornamental tree planted in gardens and urban forests in South Korea. In 2018, severe symptoms were observed on street plantings of sweet crab apple in Jinju, South Korea including shoot blight: shoot tips, twigs and foliage of infected trees turned brown, and dried completely. The causal agent isolated from the disease lesions was identified as Pseud ...
DOI:
10.1111/efp.12603

18. Impact of ball-milling time on the physical properties, bioactive compounds, and structural characteristics of onion peel powder

Author:
Jiang, Guihun; Ramachandraiah, Karna; Wu, Zhaogen; Li, Shanji; Eun, Jong-Bang
Source:
Food bioscience 2020 v.36 pp. 100630
ISSN:
2212-4292
Subject:
Allium cepa,   etc   ; antioxidant activity; bioactive compounds; crystal structure; foods; moieties; onion peels; onions; protocatechuic acid; quercetin; scanning electron microscopy; water holding capacity; water solubility;     Show all 13 Subjects
Abstract:
... The effect of ball-milling time on the physical properties, bioactive compounds, and structural characteristics of onion (Allium cepa L.) peel powder were studied. Extending the ball-milling time increased the water solubility index, bulk and tapped densities, Carr index, and brightness of onion peel powder, but decreased its water holding capacity and redness. Moreover, ball-milling for 18 h show ...
DOI:
10.1016/j.fbio.2020.100630

19. The relationship between cyto-genotoxic damage and oxidative stress produced by emerging pollutants on a bioindicator organism (Allium cepa): The carbamazepine case

Author:
García-Medina, Sandra; Galar-Martínez, Marcela; Gómez-Oliván, Leobardo Manuel; Torres-Bezaury, Rosalía María del Consuelo; Islas-Flores, Hariz; Gasca-Pérez, Eloy
Source:
Chemosphere 2020 v.253 pp. 126675
ISSN:
0045-6535
Subject:
Allium cepa,   etc   ; DNA damage; anticonvulsants; bioassays; biomarkers; cytotoxicity; ecotoxicology; environmental impact; genotoxicity; hydroperoxides; indicator species; mutagens; oxidation; oxidative stress; pollutants; proteins; roots; surface water; toxicity testing;     Show all 19 Subjects
Abstract:
... The carbamazepine (CBZ) is one of the most frequently detected anticonvulsant drugs in water bodies. Although there are reports of its ecotoxicological effects in the scientific literature, toxicity studies have not focused on establishing the mechanism by which CBZ produces its effect at environmentally relevant concentrations. The objective of this work was to evaluate cyto-genotoxicity and its ...
DOI:
10.1016/j.chemosphere.2020.126675

20. Bacillus subtilis ALBA01 alleviates onion pink root by antagonizing the pathogen Setophoma terrestris and allowing physiological status maintenance

Author:
Sayago, Pamela; Juncosa, Florencia; Albarracín Orio, Andrea Georgina; Luna, Darío Fernando; Molina, Gabriela; Lafi, Jorge; Ducasse, Daniel Adrián
Source:
European journal of plant pathology 2020 v.157 no.3 pp. 509-519
ISSN:
0929-1873
Subject:
Allium cepa,   etc   ; Bacillus subtilis; biological control; crop production; crop rotation; cultivars; disease incidence; greenhouses; growth promotion; onions; pathogens; photosynthesis; physiological state; soil fumigation;     Show all 14 Subjects
Abstract:
... The soil-borne pathogen Setophoma terrestris is the causal agent of pink root of onion, one of the most challenging diseases in onion production. Conventional approaches for managing the disease like solarization, soil fumigation and crop rotation have not been proven effective enough. In this work, we evaluated the biocontrol capacity of Bacillus subtilis ALBA01 (BsA01) against S. terrestris, in ...
DOI:
10.1007/s10658-020-02012-x