Nabil I. Elsheery

Tanta University · Agriculture botany

This study investigates the effects of titanium dioxide nanoparticles (nTiO2) on Vicia faba under salinity stress. Plants were treated with either 10 or 20 ppm nTiO2 and subjected to two different concentrations of salinity (100 and 200 mM NaCl) as well as the combined effect of nanoparticles and salinity. Salinity induced a reduction in dry weight...

Salty sandy soil usually hinders plant growth, while spraying nano-fertilizers such as iron and zinc enhances plant growth. This experiment investigated the role of iron and zinc nano-fertilizers (1 g l –1 ) in the adaptation of date palm seedlings (cv. Barhee) subjected to salt stress (0, 75, 150 mM NaCl). Nano-fertilizer increased plant height, l...

Sphaeropteris lepifera (J.Sm. ex Hook.) R. M. Tryon is a rare and endangered tree fern. 5-azacytidine (5-azaC), an inhibitor of DNA methylation, promotes male gametophyte differentiation and increases the abundance of antheridia. To explore the relationship between DNA methylation and sex differentiation in S. lepifera, RNA sequencing was performed...

Sugar beet (Beta vulgaris L.) is susceptible to various diseases, especially powdery mildew, caused by Erysiphe betae. Using nanotechnology in agriculture could revolutionize the sector by providing new tools for fast disease diagnosis and disease resistance. This study investigated the potential of Zn nanoparticles in inducing resistance to powder...

The microbial ecosystem of fermented food is greatly disturbed by human activities.Jiuyao is important saccharification starter for brewing huangjiu. The interaction between environmental factors and microorganisms significantly affected the microbial community structure at different stages of Jiuyao manufacturing. This study combined environmental...

Ozone (O3) and particulate matter (PM2.5) pollution are major pollution problems faced by global cities. Volatile organic compounds (VOCs) are common precursors of O3 and PM2.5. In this study, the concentration and composition characteristics of target volatile organic compounds (VOCs) were monitored at five sampling points distributed in the indus...

Textile dye is one of the main pollutants in industrial wastewater, and its impact on soil environment has always been an important part of soil health risk assessment. The objective is to reveal the succession law of microbial community in textile dye–contaminated soil, and to provide scientific basis for environmental assessment and remediation o...

Plant growth-promoting rhizobacteria (PGPR) isolated from the rhizosphere soil of eight field crops at different locations in Egypt were identified. Rhizobacteria strains were identified as Bacillus endophyticus AW1 5, B. filamentosus EM9, ET3, Micrococcus luteus KT2, FW9, FC13, SaW4, Enterobacter cloacae SK18, Pseudomonas azotoformans TPo10, Citro...

Arsenic (As) is characterized as phytotoxic and belongs to the general stresses which hinder plant growth and productivity. The elimination of As accumulation in wheat grain is a major research goal and having knowledge in physiological grounds for As stress resisting will help to protect plants and human against these toxicities. 5-aminolevulinic...

Arsenic (As) is characterized as phytotoxic and belongs to the general stresses which hinder plant growth and productivity. The elimination of As accumulation in wheat grain is a major research goal and having knowledge in physiological grounds for As stress resisting will help to protect plants and human against these toxicities. 5-aminolevulinic...

Keywords: chilling; cyclic electron flow; oxidation of P700; photoinhibition; photosynthesis. Abbreviations: CE-carboxylation efficiency; CEF-cyclic electron flow; Ci-internal CO2 concentration; ETR(I)-photosynthetic electron flow through PSI; ETR(II)-photosynthetic electron flow through PSII; Fd-ferredoxin; Fv/Fm-maximum quantum yield of PSII in t...

Global agriculture is a pivotal activity performed by various communities worldwide to produce essential human edible needs. Plant productivity is limited by several factors, such as salinity, water scarcity, and heat stress. Salinity significantly causes short or long-term impacts on the plant photosynthesis mechanisms by reducing the photosynthet...

Global agriculture is a pivotal activity performed by various communities worldwide to produce essen-tial human edible needs. Plant productivity is limited by several factors, such as salinity, water scarcity, and heat stress. Salinity significantly causes short or long-term impacts on the plant photosynthesis mechanisms by reduc-ing the photosynth...

Strain TSO9 was isolated from a commercial field of wheat (Triticum turgidum L. subsp. durum) located in the Yaqui, Valley, Mexico. Here, the genome of this strain was sequenced, obtaining a total of 5,248,515 bp; 38.0% G + C content; 1,186,514 bp N50; and 2 L50. Based on the 16S rRNA gene sequencing, strain TSO9 was affiliated with the genus Pries...

In the process of Huangjiu fermentation, microbial succession plays an important role in quality control of Huangjiu. In this study, Lactobacillus acetotolerans was screened as internal standards, and the bacterial communities in Huangjiu fermentation were quantified definitively by high-throughput amplandin-qPCR. Based on the absolute quantitative...

The volatile flavor compounds of Huangjiu (Chinese rice wine) brewed from different raw materials were obviously different, but there were few studies on the volatile flavor compounds of Huangjiu brewed from different wheat Qu at different brewing stages. In this paper, headspace–solid phase microextraction combined with gas chromatography–mass spe...

Plant growth, development, and productivity are adversely affected under drought conditions. Previous findings indicated that 5-aminolevulinic acid (ALA) and 24 epibrassinolides (EBL) play an important role in the plant response to adverse environmental conditions. This study demonstrated the role of ALA and EBL on oxidative stress and photosynthet...

Background: Ethyl carbamate (EC) is a potential carcinogen existing in fermented foods such as Chinese rice wine (Huangjiu). Since urea is an important precursor of EC, the degradation of urea could be an effective way to reduce EC in the foods. Results: In this study, an Enterobacter sp. R-SYB082 with acid urea degradation characteristics was o...

Chilling restrains the distribution of mangroves. We tested whether foliar phosphorus (P) fractions and gene expression are associated with cold tolerance in mangrove species. We exposed seedlings of six mangrove populations from different latitudes to favorable, chilling and recovery treatments, and measured their foliar P concentrations and fract...

In order to improve the high cost of equipment and difficult management caused by the natural aging of Chinese rice wine (Huangjiu), micro‐oxygen (MO) and electric field (PEF) technology are used to accelerate the aging of Huangjiu. The results showed that micro‐oxygen and electric field have a significant effect on the sensory characteristics and...

Background Previous literatures revealed that gamma rays have an increasing effect on salt tolerance in different plants. In vitro experiment was conducted to study the effect of gamma rays (20 Gray) on salt tolerance of four potato cultivars (Lady Rosetta, Diamante, Gold, and Santana). Results Gamma-treated Santana plantlets were more tolerant to...

Huangjiu (Chinese rice wine) is brewed in an open environment, where bacteria play an important role during the fermentation process. In this study, bacterial community structure and composition changes in the fermented mash liquid of mechanized Huangjiu, well‐fermented manual Huangjiu (wines of good qualities), and poorly fermented manual Huangjiu...

It is already known that there are many factors responsible for the successful grafting process in plants, including light intensity. However, the influence of the spectrum of light-emitting diodes (LEDs) on this process has almost never been tested. During the pre-grafting process tomato seedlings grew for 30 days under 100 μmol m ⁻² s ⁻¹ of mixed...

Background Autophagy is an evolutionarily conserved physiological and developmental process in eukaryotes. In this process, damaged proteins in cells are degraded and cytoplasmic materials recycled. When plants are exposure to stress conditions or their growth and development are blocked, autophagy is induced to maintain the cell homeostasis by deg...

In subtropical regions, chilling stress is one of the major constraints for sugarcane cultivation, which hampers yield and sugar production. Two recently released sugarcane cultivars, moderately chilling tolerant Guitang 49 and chilling tolerant Guitang 28, were selected. The experiments were conducted in the controlled environment, and seedlings w...

Mango production faces several challenges, such as nutrient deficiency, physiological stress, and alternate bearing, which eventually affect tree productivity. This study was carried out during the 2017 and 2018 seasons to evaluate the effect of single and combined applications of humic acid (as potassium humate; 0.15%, 0.30%, 0.45%) and boron (as...

Limited findings have been reported on using nanomaterials to improve tree fruit growth, development, and productivity under various stress conditions. To assess the effect of nanoparticles (NPs) like nano-zinc oxide (nZnO) and nano-silicon (nSi) on mango tree growth, yield, and fruit quality under salinity conditions, a factorial experiment was co...

In the last years, JIP-test became to be a tool widely applied to assess the performance of photosynthetic apparatus of plants growing under environmental stresses. The objective of our work was to check whether JIP-test can help to predict winter survival in plants. An experiment with outdoor vertical garden was conducted in June 2015 on a south-o...

Nanotechnology has attracted scientists for study and exploitation of the unique physical, chemical and biological characteristics of nanomaterials. Nanomaterials are being developed for applications to a wide range of fields including medicine, drug delivery, electronics, fuel cells, solar cells, food preparation, and space exploration. Nanomateri...

Chilling is one of the main abiotic stresses that adversely affect the productivity of sugarcane, in marginal tropical regions where chilling incidence occurs with seasonal changes. However, nanoparticles (NPs) have been tested as a mitigation strategy against diverse abiotic stresses. In this study, NPs such as silicon dioxide (nSiO2; 5-15 nm), zi...

Salinity is considered as one of the main stress factors, which impact the horticultural crops. Thus, the objective of this research was to study the molecular, biochemical, and physiological mechanisms of salinity tolerance in grafted cucumber. Cucumber seedlings Cucumis sativus, L cv 1010 was either grafted onto four rootstocks (bottle gourd, pum...

Nanotechnology had been attracted many scientists for its unique physical, chemical, and biological characteristics that differ from those in a large-scale model for the same material. Nanomaterials were developed for many applications in many fields such as medicine, drug delivery, electronics, fuel cells, solar cells, food, space, and etc. Among...

Nanotechnology had been attracted many scientists for its unique physical, chemical and biological characteristics that differ from those in a large scale model for the same material. Nanomaterials were developed for many applications in many fields such as medicine, drug delivery, electronics, fuel cells, solar cells, food, space and etc. Among th...

Aspartic protease (AP) is one of four large proteolytic enzyme families that are involved in plant growth and development. Little is known about the AP gene family in tree species, although it has been characterized in Arabidopsis, rice and grape. The AP genes that are involved in tree wood formation remain to be determined.

Background Aspartic protease (AP) is one of four large proteolytic enzyme families that are involved in plant growth and development. Little is known about the AP gene family in tree species, although it has been characterized in Arabidopsis, rice and grape. The AP genes that are involved in tree wood formation remain to be determined. Results A t...

In this study, field and greenhouse experiments were carried at Agricultural Research farm, El Khatatba location, Menofia governorate and Agriculture Research Center in Giza, respectively to estimate the effect of soluble potassium silicate (PS) application on inducing onion resistance against Sclerotium cepivorum and the rhizosphere of soil microb...

In this study, field and greenhouse experiments were carried at Agricultural Research farm, El Khatatba location, Menofia governorate and Agriculture Research Center in Giza, respectively to estimate the effect of soluble potassium silicate (PS) application on inducing onion resistance against Sclerotium cepivorum and the rhizosphere of soil microb...

The beneficial effects of silicon and its role for plants are well established; however, the advantages of silicon nanoparticles over its bulk material are an area that is less explored. Silicon nanoparticles have distinctive physiological characteristics that allow them to enter plants and influence plant metabolic activities. The mesoporous natur...

Nanotechnology is considered to a key role in soil remediation that involves removing soil contaminants and enhancing soil quality and fertility. This can be achieved by high specific area and high reactivity of nanomaterials due to smaller particle size which make nanomaterials easier to deliver into soils. These characteristics increase its effic...

Photosynthetic efficiency of Arabidopsis thaliana plants has been investigated under drought stress conditions by several studies, but not in response to effective microorganisms (EM) application. Thus, our study aims to examine the effect of EM on growth and photosynthetic efficiency of Arabidopsis thaliana under water stress condition. Arabidopsi...

Cucumber is often affected by salinity due to its highly susceptible to soil salinity even at low electrical conductivity in the saturated soil extract. This study found that cucumber grafting on salt resistance rootstock of pumpkin can represent an interesting tool to alleviate reduce biomass and yield losses caused by salinity stress. Grafted pla...

The present study aimed to use some plant extracts and two different species of Trichoderma spp. to control damping off disease in cucumber caused by Pythium aphanidermatum instead of using chemicals where serious environmental problems caused by several chemical fungicides. Some plant products such as plant metabolites and plant based pesticides c...

Limitation of fresh water for agriculture irrigation is a worldwide problem, especially in countries located in the arid region like Egypt. This work demonstrates the impact of treated wastewater on two mango cultivars, cv. “Keitt” and cv. “Ewais”. Treated wastewater contains comparatively more contaminant than fresh water, therefore salicylic acid...

Heavy metals are the main pollutants in electroplating wastewater. Currently, mainly chemical methods, which generate huge amounts of toxic sludge, are used in industrial wastewater treatment. To achieve environmental sustainability, there is a need to introduce an eco-friendly treatment of such contaminated wastewater. The present study was carrie...

Jatropha curcas's dehydrin (JC-DHN2) has been previously shown to play a role during natural dehydration process associated with maturation of Jatropha curcas seed. In this study, we generated transformed rice plant (tp) overexpressing Jc-DHN2 gene and examined the role of over expressed gene in improving the drought tolerance. The tp plants showed...

O NION (Allium cepa L.) is a very important vegetable crop in Egypt and all over the world. White rot is a serious disease of Allium spp. caused by the soil-borne fungus Sclerotium cepivorum. In this study, three Trichoderma species and one vegan compost, alone or in combinations with the fungicide folicur were tested for their ability to inhibit m...

Improvement of drought stress of mango plants requires intensive researches that focuses on physiological processes. In three successive seasons (2014, 2015and 2016) field experiments with four different strains of mango were subjected to two water regimes. The growth and physiological parameters of possible relevance for drought stress tolerances...

ABSTRACT In this study, field and greenhouse experiments were carried at Agricultural Research farm, El Khatatba location, Menofia governorate and Agriculture Research Center in Giza, respectively to estimate the effect of soluble potassium silicate (PS) application on inducing onion resistance against Sclerotium cepivorum and the rhizosphere of so...

Key message Plant growth promoting rhizobia bacteria and mycorrhizae in the presence of putrescine allows and/or enables date palm to increase its adaptation to reclaimed/salinized areas. Abstract Amines and biofertilizers play an important role in a plant’s response to adverse environmental conditions including salt and osmotic stress. This study...

The aim of this educational review is to provide practical information on the hardware, methodology, and the hands on application of chlorophyll (Chl) a fluorescence technology. We present the paper in a question and answer format like frequently asked questions. Although nearly all information on the application of Chl a fluorescence can be found...

The present study aimed to develop an in vitro regeneration of plantlets of four commercial pomegranate genotypes (Manfalouty, Tahrir, Badr and Araby) grown in Egypt. Shoot tips were selected and separated from 7-year-old mother plants as explants. The ...

This study aimed to identify biological contaminants of banana in vitro cultures. We also tested the effect of Zn or ZnO nanoparticles on elimination of some bacterial and fungal contaminants and their influence regeneration. Nine strains of bacterial contaminants (Cellulomonas uda, Cellulomonas flarigena, Corynebacterium panrometabolum, Bacillus m...