Results 31 to 40 of about 4,410 (209)

Screening the nematicidal potential of indigenous medicinal plant extracts against Meloidogyne incognita under lab. and greenhouse conditions

open access: yesEgyptian Journal of Biological Pest Control, 2021
Background The root-knot nematode, Meloidogyne incognita, causes a high damage and yield decrease for many economic plants. The need for non-systemic effective new approaches and environmentally friendly methods for controlling the nematodes has directed
Hosny Kesba   +3 more
doaj   +1 more source

Distribution pattern and titer of Candidatus Liberibacter asiaticus in periwinkle (Catharanthus roseus)

open access: yesJournal of Integrative Agriculture, 2018
Candidatus Liberibacter asiaticus (CaLas), an uncultured Gram-negative alphaproteobacterium, is the causal agent of Huanglongbing (HLB) in citrus. CaLas resides in phloem sieve tubes and has been shown to be unequally distributed in different tissues ...
Ya LI   +3 more
doaj   +1 more source

Transmission of Xylella fastidiosa Subspecies Pauca Sequence Type 53 by Different Insect Species

open access: yesInsects, 2019
Diseases associated with Xylella fastidiosa have been described mostly in North and South America. However, during the last five years, widespread X. fastidiosa infections have been reported in a constrained area of the Apulia region (southern Italy), in
Vincenzo Cavalieri   +7 more
doaj   +1 more source

Optimization of Callus Induction and Cell Suspension in Catharanthus roseus [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2012
Periwinkle (Catharanthus roseus) has been considered as an important medicinal plant because it contains many alkaloids such as vincristine and vinblastine.
Jafar Ahmadi   +3 more
doaj   +1 more source

Detecção de 'CA. Phytoplasma phoenicium' em plantas de pervinca (Cathranthus roseus) em Uttar Pradesh, Índia

open access: yesBioscience Journal, 2022
Cathranthus roseus also known as periwinkle, an ornamental plant contains several medicinal values, was found with the symptoms of little leaf and witches’ broom at Shahjahanpur location with the incidence of up to 8%.
Niraj Nath Tiwari   +2 more
doaj   +1 more source

Exploration of the Mechanisms of Differential Indole Alkaloid Biosynthesis in Dedifferentiated and Cambial Meristematic Cells of Catharanthus roseus Using Transcriptome Sequencing

open access: yesFrontiers in Genetics, 2022
Catharanthus roseus produces terpenoid indole alkaloids (TIAs) of high medicinal importance. The current research focuses on finding an efficient production system such as cell suspension cultures for high TIA concentrations.
Pengfei Zhou, Mingxiang Chen
doaj   +1 more source

Experimental investigation of the performance of palm kernel shell and periwinkle shell as partial replacement for coarse aggregate in asphaltic concrete

open access: yesJournal of Building Materials and Structures, 2016
Performance of non-conventional materials namely palm kernel shell (PKS) and periwinkle shell (PWS) were investigated. Sieve analysis, aggregate impact value (AIV), aggregate crushing value (ACV), bitumen penetration, Marshall Stability, flash and fire ...
Olugbenga Joseph Oyedepo   +1 more
doaj   +1 more source

Evaluation of rheological and fluid loss properties of Nigerian bentonite using periwinkle and mucuna solannie

open access: yesCogent Engineering, 2021
Nigerian bentonite has low fluid loss control and poor rheological properties which are key API specifications. Foreign and imported bentonites are sodium-based, while local bentonites are calcium-based, and there is a need for beneficiation.
Igwilo K. Chinwuba   +4 more
doaj   +1 more source

Comparative analysis of the physical properties of two varieties of periwinkle relevant to the design of processing equipment

open access: yesResearch in Agricultural Engineering, 2021
The physical properties of agricultural products are essential in designing machines, equipment, and systems for efficient processing operations. Two periwinkle varieties, viz Tympanotonus fuscatus (Linnaeus, 1758) and Pachymelania aurita O. F.
Inemesit Edem Ekop   +2 more
doaj   +1 more source

Food Contamination and Safety in Nigeria: A Systematic Synthesis of Heavy Metals, Microbial Pathogens, and Health Risk Metrics

open access: yesFood Safety and Health, EarlyView.
This is an infographic driver of food contaminants and health effects. ABSTRACT Food safety remains a critical challenge in Nigeria due to rapid urbanization and weak regulatory enforcement. This systematic review synthesizes empirical evidence from 2015 to 2025 to characterize food contaminant profiles and associated human health risks in Nigeria ...
Cecilia Nwadiuto Obasi   +6 more
wiley   +1 more source

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