Isolation of Serratia marcescens involved in chitin degradation in the bulb mite Rhizoglyphus robini

Symbiosis ◽  
2017 ◽  
Vol 73 (1) ◽  
pp. 1-5
Author(s):  
Renate Zindel ◽  
Maya Ofek-Lalzar ◽  
Alexandre Aebi
Keyword(s):  
Serratia Marcescens ◽  
Chitin Degradation ◽  
Rhizoglyphus Robini ◽  
Bulb Mite

Acute toxicity and sublethal effects of metal oxide nanoparticles against the bulb mite

2021 ◽  
Vol 26 (4) ◽  
pp. 788-800
Author(s):  
Gholamreza Tavakkoli Korghond ◽  
Najmeh Sahebzadeh ◽  
Hossein Allahyari ◽  
Sara Ramroodi
Keyword(s):  
Metal Oxide ◽  
Sublethal Effects ◽  
Metal Oxide Nanoparticles ◽  
Intrinsic Rate Of Increase ◽  
Oxide Nanoparticles ◽  
Nano Tio2 ◽  
Rhizoglyphus Robini ◽  
Adult Females ◽  
Rate Of Increase ◽  
Bulb Mite

Crocus sativus L. (Iridaceae) known as saffron is the most commercially important medicinal food product in Iran and worldwide because of its significance for exporting commercial. However, the health of this plant is adversely threatened by abiotic and biotic stress. Bulb mite Rhizoglyphus robini Claparede (Acari: Acaridae) as abiotic stress is oligophagous and the main pest of tuber plants, commonly found in all the cultivated saffron producing areas could decrease saffron economic value. The mites tunnel through corms allowing the entry of fungal and bacterial pathogens. The widespread use of commercial pesticides in modern agriculture to protect crops from pests has caused significant public concern because of their side impacts on the environment and non-target species. Nanotechnology has been used in the production, processing, storage, packaging, and transport of agricultural products. Newly, oxide nanoparticles have been introduced as novel pesticides against pests and fertilizer. This study was conducted as an effective and environmentally-friendly method to control the growth of Rhizoglyphus robini. The lethal and sublethal effects of metal oxide nanoparticles (MNPs) including nano copper oxides (nano-CuO), nano magnesium oxide (nano-MgO), nano zinc oxide (nano-ZnO), nano titanium dioxide (nano-TiO2), and nano iron oxide (nano-Fe2O3) which their lethal concentrations ranged between 159.2 and 1036.4 mg L-1 were studied on Rhizoglyphus robini adult females. The contact effect of the tested MNPs was evaluated using the corm dip bioassay method. Assays showed that the contact toxicity of the nano-CuO treatment (229.1 mg L-1) was higher than other MNPs. To assess the sublethal effects of the MNPs, adult females were exposed to the LC25 concentration of MNPs, and life history and life-table parameters of the surviving Rhizoglyphus robini were investigated. The exposure to sublethal concentrations of the tested MNPs prolonged the egg incubation, larval period, and nymphal period significantly when compared to the control mites. Compared to other MNPs or control mite, nano-MgO and nano-TiO2 led to the longest duration of the total immature stages (11.32 and 11.32, respectively). The net reproductive rate (R0), the intrinsic rate of increase (rm), the finite rate of increase (λ), and the generation time (T) were significantly different between control and MNP treatments. The population exposed to ZnO-, MgO-, and TiO2-nanoformulations had a much lower rm value (0.164, 0.164, and 0.171 d-1, respectively) compared to the control population (0.231 d-1) and those exposed to Fe3O4- and CuO-nanoformulations (1.19 and 1.19 d-1, respectively). According to our findings, all tested MNPs, especially CuO-, ZnO-, and MgO-nano formulations, have a potential application for use in the management of Rhizoglyphus robini.

scholarly journals Effect of inbreeding and heritability of sperm competition success in the bulb mite Rhizoglyphus robini

Heredity ◽  
2005 ◽  
Vol 94 (6) ◽  
pp. 577-581 ◽  
Author(s):  
M Konior ◽  
L Keller ◽  
J Radwan
Keyword(s):  
Sperm Competition ◽  
Rhizoglyphus Robini ◽  
Bulb Mite

Does frequency-dependence determine male morph survival in the bulb mite Rhizoglyphus robini?

2013 ◽  
Vol 62 (4) ◽  
pp. 425-436 ◽  
Author(s):  
Jacques A. Deere ◽  
Isabel M. Smallegange
Keyword(s):  
Frequency Dependence ◽  
Rhizoglyphus Robini ◽  
Bulb Mite

scholarly journals Procrustean analysis of fluctuating asymmetry in the bulb mite Rhizoglyphus robini Claparede (Astigmata: Acaridae)

2003 ◽  
Vol 80 (3) ◽  
pp. 499-505 ◽  
Author(s):  
JACEK RADWAN ◽  
PAUL J. WATSON ◽  
JAMES FARSLOW ◽  
RANDY THORNHILL
Keyword(s):  
Fluctuating Asymmetry ◽  
Rhizoglyphus Robini ◽  
Bulb Mite ◽  
Procrustean Analysis

The function of post-insemination mate association in the bulb mite,Rhizoglyphus robini

1996 ◽  
Vol 52 (4) ◽  
pp. 651-657 ◽  
Author(s):  
JACEK RADWAN ◽  
MICHAEL T. SIVA-JOTHY
Keyword(s):  
Rhizoglyphus Robini ◽  
Bulb Mite

Screening and evaluation of acaropathogenic fungi against the bulb mite Rhizoglyphus robini

2021 ◽  
Author(s):  
Seung-Hyun Ko ◽  
Tae-Young Shin ◽  
Jin-Yong Lee ◽  
Cheol-June Choi ◽  
Soo-Dong Woo
Keyword(s):  
Rhizoglyphus Robini ◽  
Bulb Mite ◽  
Acaropathogenic Fungi
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