Mona Dawood

Assiut University · Department of Botany

Unlike other growth stages of wheat, very few studies on drought tolerance have been done at the seedling stage, and this is due to the complexity and sensitivity of this stage to drought stress resulting from climate change. As a result, the drought tolerance of wheat seedlings is poorly understood and very few genes associated with drought tolera...

In this study, canola (Brassica napus L.) seedlings were treated with individual and combined salinity and lithium (Li) stress, with and without acetic acid (AA) or nitric acid (NO), to investigate their possible roles against these stresses. Salinity intensified Li-induced damage, and the principal component analysis revealed that this was primari...

Water deficit is one of the major environmental factors that affect wheat growth and development. The seedling stage is a sensitive growth stage to drought stress. Drought stress induces dramatic changes in the physiological components that can alleviate the severity of drought. Therefore, studying physio-morphological traits is very important to u...

The in vitro and in vivo efficacy of three biocontrol agents, Trichoderma viride, Pseudomonas fluorescence, and Bacillus subtilis, were tested against Rhizoctonia solani (AG-4) infection compared to two conventional fungicides (Rizolex-T 50%wettable powder and Amistar 25%). Antifungal enzyme activity was assayed in the culture filtrate of the bioco...

Microbial biostimulants (MBs) promote plant growth and stress tolerance in a sustainable manner. However, precise field trials of MBs are required in natural setting with a range of crop varieties to harness the benefits of biostimulants on crop yield improvement. This study investigated the effects of two MBs, Trichoderma album and Bacillus megate...

To date, the genetic basis of drought tolerance in the seedling in wheat is poorly understood, and very few genes or markers associated with drought tolerance were identified. The seedling stage is a critical and sensitive growth stage affected by drought stress. In this study, morphological and physiological traits were scored in a highly diverse...

Abstract Environmental stresses including salinity, drought, cold, warmer temperatures, alterations in precipitation patterns, fluctuations of weather events, and increasing insect and disease infestations negatively affect crop production and nutritional values. This situation becomes further complicated due to the changing climatic conditions, th...

Climate and atmospheric fluctuations have serious impacts on plants with respect to mineral availability. Nowadays, cultivated lands are at risk of mineral stress in terms of a shortage of essential macronutrients (P, K, N, S, Ca, and Mg) or micronutrients (Fe, Zn, Mn, Cu, B, Mo, Cl, and Ni). Nutrient deficiency has a complex interaction with plant...

The plant received sunlight radiation of different spectra, from which ultraviolet radiation (UV). The UV spectrum consists of UV rays with different wavelengths as UV-C (100–280 nm), UV-B (280–315 nm), and UV-A (315–400 nm). Despite UV radiation being a minor part of the sunlight radiation received by Earth, it induces considerable biological impa...

Drought tolerance is a complex quantitative trait and is controlled by many different genes with major and minor effects. Identifying both types of these genes is very useful in accelerating the genetic improvement of drought tolerance. Genome wide association analysis is one of the effective genetic analyses that used to identify marker alleles as...

Drought is one of the complex abiotic stresses that affect the growth and production of wheat in arid and semiarid countries. In this study, a set of 172 diverse spring wheat genotypes from 20 different countries were assessed under drought stress at the seedling stage. Besides seedling length, two types of traits were recorded, namely: tolerance t...

Nitric oxide (NO) is a well-accepted signaling molecule that has regulatory effects on plants under various stresses. Salinity is a major issue that adversely affects plant growth and productivity. The current study was carried out to investigate changes in the growth, biochemical parameters, and yield of wheat plants in response to NO donors, name...

Background To our knowledge, the role of exogenous fluoride (F–) on aluminum (Al)-stress mitigation in plants has not been investigated yet. In this experiment, barley (Hordeum vulgaris) seedlings were exposed to excessive Al3+ concentrations (aluminum chloride, 0.5, 1.0, 2.0, 3.0, and 4.0 mM) with and without fluoride (0.025% sodium fluoride) to e...

Moringa leaf extract (MLE) has been shown to promote beneficial outcomes in animals and plants. It is rich in amino acids, antioxidants, phytohormones, minerals, and many other bioactive compounds with nutritional and growth-promoting potential. Recent reports indicated that MLE improved abiotic stress tolerance in plants. Our understanding of the...

Citation: Younes, N.A.; Rahman, M..M.; Wardany, A.A.; Dawood, M.F.A.; Mostofa, M.G.; Keya, S.S.; Abdel Latef, A.A.H.; Tran, L.-S.P.

Citation: Younes, N.A.; Rahman, M..M.; Wardany, A.A.; Dawood, M.F.A.; Mostofa, M.G.; Keya, S.S.; Abdel Latef, A.A.H.; Tran, L.-S.P.

The phytopathogenic basidiomycetous fungus, Rhizoctonia solani, has a wide range of host plants including members of the family Poaceae, causing damping-off and root rot diseases. In this study, we biosynthesized spherical-shaped silicon dioxide nanoparticles (SiO2 NPs; sized between 9.92 and 19.8 nm) using saffron extract and introduced them as a...

Pathogens associated with onion seeds cause serious problems by decreasing the percentage of germinated seeds and impeding the growth of germinated seedlings leading to pre- and post-emergence damping-off. Two fungal isolates, Aspergillus niger and Fusarium oxysporum, associated with commercial onion seeds were isolated, identified, and tested for...

Pollution with heavy metals is a common problem worldwide that affects the growth of important crops and human health due to the consumption of contaminated crops. In the recent study, a set of 103 diverse spring wheat genotypes were evaluated for their tolerance to two important metals (lead and tin). The effect of these metals on kernel traits wa...

Nanotechnology is one of the new approaches introduced to improve agricultural production as the present ecosystem balance starts to decline significantly due to the extensive use of classical agriculture. Nanoparticles are suitable alternative materials in place of the excessive use of chemicals, pesticides, and fungicides in agricultural crops to...

Salinity is among the most significant threats hindering global food security. The impact of Trichoderma, biochar, and combination on Spinach plants under salt stress conditions was investigated. Our results confirmed that salt stress (75, 150 mM) negatively affected morphological and physiological parameters of Spinach plants such as shoot (26.4%,...

Agriculture crops are frequently exposed to various abiotic stresses that are influence growth, development and productivity. Drought stress constitutes a major issue affecting plant productivity nowadays. The plants exhibited various morphological, anatomical, physiological, molecular and biochemical responses to water shortage conditions. The pro...

Under the present era of changing climate, plants face simultaneous abiotic pressures rather than single stress. Under these unprecedented and joint environmental pressures, thorough research efforts toward controlling such major stresses should be done. A pot experiment was, therefore, conducted to unravel the salicylic acid (SA) mediated underlyi...

The increasing culinary use of onion (Alium cepa) raises pressure on the current production rate, demanding sustainable approaches for increasing its productivity worldwide. Here, we aimed to investigate the beneficial effects of licorice (Glycyrrhiza glabra) root extract (LRE) in improving growth, yield, nutritional status, and antioxidant propert...

A Correction to this paper has been published: https://doi.org/10.1007/s10658-021-02275-y

Nanotechnology is one of the new approaches introduced to improve agricultural production as the present ecosystem balance starts to decline significantly due to the extensive use of classical agriculture. Nanoparticles are suitable alternative materials in place of the excessive use of chemicals, pesticides, and fungicides in agricultural crops to...

The current research aims to evaluate the susceptibility of the tomato of the tomato (Solanum lycopersicum) cultivars 65,015 (CV1), Basma (CV2), Dalia (CV3), 320 (CV4), and 844 (CV5) to early blight disease caused by Alternaria solani, A. alternata, and Curvularia lunata under greenhouse conditions. All five cultivars were inoculated with the teste...

Regulatory roles of hydrogen sulfide (H2S) under saline-alkaline and/or aniline stress have not been studied yet. In this study, we investigated the insights into saline-alkaline and/or aniline stresses-induced toxicity in artichoke plants and its alleviation by H2S priming. Individual saline-alkaline or aniline stress and their combination reduced...

Supporting Materials and Methods Determination of the lethal dose of UVC and optimal dose of AT Plastic pots lined with a plastic bag containing 1 kg clay soil were used for sub-culturing of 40 day-old tomato transplants (3 plants pot −1). The pots were divided into five lots (five pots lot −1) receiving different irradiance of 0, 0.3, 0.6, 1.2, 1....

Allantoin ((AT) a purine metabolite)-mediated ultraviolet C (UVC) stress mitigation has not been studied to date. Here, we reported the physicochemical mechanisms of UVC-induced stress in tomato (Solanum lycopersicum L.) plants, including an AT-directed mitigation strategy. UVC stress reduced plant growth and photosynthetic pigments. Heatmap and pr...

Heat stress is one of the abiotic stresses that cause a significant reduction in barley yield. Climate change will increase the high temperature waives which will result in more deterioration in the agricultural sector. Therefore, understanding the physiological changes that occur in the plant to tolerate heat stress is very important. A collection...

Drought induces several challenges for plant development, growth, and production. These challenges become more severe, in particular, in arid and semi-arid countries like Egypt. In terms of production, barley ranks four after wheat, maize, and rice, while it ranks first in terms of abiotic stress tolerant. Seed germination and seedling are critical...

IMPROVING of drought tolerance of plant is the main target of recent studies over the world. The present investigation deals with using nitric oxide (NO) as a protecting agent against drought stress. NO act a vital role in diverse physiological functions in plants. Presoaking of seeds of two faba bean cultivars (Giza 3 and El-masria 3) at NO (0.1mM...

Soils may be contaminated by oily wastewater during both upstream and downstream oil and gas production processes such as extraction, transportation, and refining. Oil-contaminated sites could nonetheless be used for agricultural purposes in arid regions provided they are managed appropriately. The present study introduces the successful applicatio...

Magnetic fields are an unavoidable physical factor affecting living organisms. Lettuce seeds (Lactuca sativa var. cabitat L.) were subjected to various intensities of the static magnetic field (SMF) viz., MF0 (control), SMF1 (0.44 Tesla (T), SMF2 (0.77 T), and SMF3 (1 T) for three exposure times (1, 2, and 3 h). SMF-treated seedlings showed inducti...

The utilization of tungsten in traffic, smelting, mining, and other industrial applications allows its’ accumulation in the environment ecosystems. The present study included using a soluble form of tungsten as a tungstate at different levels (0, 1, 5, 10, 50, and 100 mg L⁻¹) as a water contaminant. The germinating seeds experienced tungstate at 1-...

Fluazinam is a widely used fungicide; most of the available information associated with its impact predominately on birds, invertebrates, mammals, and algae and scarce works studied its impact on crop plants. A two years-field experiments were conducted to study the response of pepper and eggplant to fluazinam at 0, 1, 2, and 3 times of the fluazin...

The outstanding role of spermine in eliciting defense adaptation of soybean to different levels of water deficit (0, -0.1, -0.5 and -1.1 MPa) was investigated by determining the changes in growth, photosynthetic pigments, osmolytes, water relations, and antioxidants. All the studied traits clearly revealed cultivar-dependent variation in response t...

Prospective involvement of metal oxide nanomaterials as a prominent agriculture practice for improving existing crop production directed the present investigation for synthesizing of ZnO and TiO2 nanomaterials as an attempt to enhance the transplants production of some Solanaceae crops. The morphological characterizations of the prepared nanomateri...

The phyto-impact of tungstate is not frequently studied like other heavy metals especially in the sight of continuous accumulation of tungstate in the agriculture soils and water. Thus, the present study was aimed to investigate the supplementation of various tungstate concentrations (0, 1, 5, 10, 50, and 100) to germination water (mg L⁻¹) or clay...

As an attempt to curtail the yield losses due to heat stress, selection of the most tolerant barley cultivars from 60 cultivars which can withstand thermal stress with limited changes in yield attributes or the quality of grains produced; is of imperative demands in agriculture discipline. In the current study, the plant material consisted of 60 di...

Climate change is a major threat to most of the agricultural crops grown in tropical and sub-tropical areas globally. Drought stress is one of the consequences of climate change that has a negative impact on crop growth and yield. In the past, many simulation models were proposed to predict climate change and drought occurrences, and, it is extreme...

Climate change will increase the effect of drought stress which is one of the major constraints for barley production and productivity in Egypt. Identification and development new cultivars having a combination of drought tolerance and high yielding is urgently needed. In the current study, a set of 60 highly homozygous and diverse barley genotypes...

The correct spelling of the third author’s surname is Elakhdar and his current address is Agri-Bio Research Laboratory, Kyushu University, Motooka 744, Japan. The correct address for the fourth author is Agri-Bio Research Laboratory, Kyushu University, Motooka 744, Japan.

Due to limited knowledge of graphene nanosheets (GNS) on phyto-biological studies, GNS was sprayed to pepper and eggplants during the seasons 2016 and 2017 at doses 0.1, 0.2 and 0.3 GNS g L ⁻¹ to assess their biosafety on leaf ultrastructure and agro-physiological traits. GNS was localized on plastids, cell walls and intercellular spaces of both pl...

This work was aimed to evaluate the efficacy of arbuscular mycorrhizal fungi (AMF) and the endophytic fungal strain Epicoccum nigrum ASU11 (Epi) to control potato blackleg caused by bacterial stain Pectobacterium carotovora subsp. atrosepticum PHY7 (Pca). E. nigrum showed unique colonization frequency properties of potato plants (73.3% colonization...

Deficit irrigation affected drastically growth kinetics and leaves traits with variant degrees drawing the tolerance or sensitivity of four wheat cultivars which recorded from pre- to post-anthesis stage. The main susceptibility characters of hypersensitive cultivar Sohag 3 were reduction of photosynthetic efficiency (chlorophyll and photosynthetic...

Heat stress is one of the abiotic stresses that limit the production and productivity of barley. Understanding the genetic variation, changes in physiological processes and level of genetic diversity existing among genotypes are needed to produce new cultivars not only having a high tolerance to heat stress, but also displaying high yield. To addre...

Heat stress is one of the major environmental factors which causes a significant reduction in barley yield. Current cultivars and crop management to reduce losses to heat stress are not sufficient. Therefore, breeding for heat tolerance in barley is needed. To address this challenge, a set of 60 highly homozygous Egyptian lines and local varieties...