Influence of Rootstock Genotype and Ploidy Level on Common Clementine (Citrus clementina Hort. ex Tan) Tolerance to Nutrient Deficiency

Nutrient deficiency, in particular when this involves a major macronutrient (N, P, and K), is a limiting factor on the performance of plants in their natural habitat and agricultural environment. In the citrus industry, one of the eco-friendliest techniques for improving tolerance to biotic and abiotic stress is based on the grafting of a rootstock and a scion of economic interest. Scion tolerance may be improved by a tetraploid rootstock. The purpose of this study was to highlight if tolerance of a common clementine scion (C) (Citrus clementina Hort. ex Tan) to nutrient deficiency could be improved by several diploid (2×) and their tetraploid (4×) counterparts citrus genotypes commonly used as rootstocks: Trifoliate orange × Cleopatra mandarin (C/PMC2x and C/PMC4x), Carrizo citrange (C/CC2x and C/CC4x), Citrumelo 4475 (C/CM2x and C/CM4x). The allotetraploid FlhorAG1 (C/FL4x) was also included in the experimental design. The impact of nutrient deficiency on these seven scion/rootstock combinations was evaluated at root and leaf levels by investigating anatomical parameters, photosynthetic properties and oxidative and antioxidant metabolism. Nutrient deficiency affects foliar tissues, physiological parameters and oxidative metabolism in leaves and roots in different ways depending on the rootstock genotype and ploidy level. The best known nutrient deficiency-tolerant common clementine scions were grafted with the doubled diploid Citrumelo 4475 (C/CM4x) and the allotetraploid FlhorAG1 (C/FL4x). These combinations were found to have less foliar damage, fewer changes of photosynthetic processes [leaf net photosynthetic rate (Pnet), stomatal conductance (gs), transpiration (E), maximum quantum efficiency of PSII (Fv/Fm), electron transport rate (ETR), ETR/Pnet], and effective quantum yield of PSII [Y(II)], less malondialdehyde accumulation in leaves and better functional enzymatic and non-enzymatic antioxidant systems. Common clementine scions grafted on other 4× rootstocks did not show better tolerance than those grafted on their 2× counterparts. Chromosome doubling of rootstocks did not systematically improve the tolerance of the common clementine scion to nutrient deficiency.

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Caracole as a Potential Neuroprotective Agent for Neurological Diseases: A Systematic

CNS & Neurological Disorders - Drug Targets ◽

10.2174/1871527320666210506185042 ◽

2021 ◽

Vol 20 ◽

Author(s):

Mohammad Zamanian ◽

Małgorzata Kujawska ◽

Marjan Nikbakht Zadeh ◽

Amin Hassanshahi ◽

Soudeh Ramezanpour ◽

...

Keyword(s):

Alzheimer’S Disease ◽

Parkinson’S Disease ◽

Alzheimer's Disease ◽

Traumatic Brain Injury ◽

Parkinson's Disease ◽

Brain Injury ◽

Neurological Diseases ◽

Antioxidant Systems ◽

Neuroprotective Agent ◽

The Impact

Background & objective: Neurological diseases are becoming a significant problem worldwide, with the elderly at a higher risk of being affected. Several researchers have investigated the neuroprotective effects of Carvacrol (CAR) (5-isopropyl-2-methyl phenol). This review systematically surveys the existing literature on the impact of CAR when used as a neuroprotective agent in neurological diseases. Methods: The systematic review involved English articles published in the last ten years obtained from PubMed, Google Scholar, and Scopus databases. The following descriptors were used to search the literature: “Carvacrol” [Title] AND “neuroprotective (neuroprotection)” [Title] OR “stroke, traumatic brain injury, Alzheimer's disease, Parkinson's disease, seizure, epilepsy [Title]. Results: : A total of 208 articles were retrieved during the search process, but only 20 studies met the eligibility criteria and were included for review. A total of 20 articles were identified, in which the efficacy of CAR was described in experimental models of stroke, traumatic brain injury, Parkinson’s disease, Alzheimer’s disease, , epilepsy, and seizure, through motor deficits improvements in neurochemical activity, especially antioxidant systems, reducing inflammation, oxidative stress and apoptosis as well as inhibition of TRPC1 and TRPM7. Conclusion : The data presented in this study support the beneficial impact of CAR on behavioural and neurochemical deficits. CAR benefits accrue because of its anti-apoptotic, antioxidant, and anti-inflammatory properties. Therefore, CAR has emerged as an alternative treatment for neurological disorders based on its properties.

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Chromosome Doubling-Enhanced Biomass and Dihydrotanshinone I Production in Salvia miltiorrhiza, A Traditional Chinese Medicinal Plant

Molecules ◽

10.3390/molecules23123106 ◽

2018 ◽

Vol 23 (12) ◽

pp. 3106 ◽

Cited By ~ 3

Author(s):

Elena Gamboa Chen ◽

Kang-Lun Tsai ◽

Hsiao-Hang Chung ◽

Jen-Tsung Chen

Keyword(s):

Ploidy Level ◽

High Performance ◽

Agronomic Traits ◽

Chromosome Doubling ◽

Salvia Miltiorrhiza ◽

Tanshinone Iia ◽

Direct Organogenesis ◽

Width Ratio ◽

Root Extract ◽

Efficient System

The root of Chinese sage (Salvia miltiorrhiza Bunge) was regarded as top-grade Chinese medicine two thousand years ago, according to Shen Nong Materia Medica. The aim of this study is to develop an easy and reliable means for obtaining tetraploids (4x plants) via thidiazuron-induced direct organogenesis in the presence of colchicine. The resulting 4x plants showed significantly enhanced agronomic traits, including the size of stomata, leaflet, pollen, and seed as well as shoot length, root diameter, number of leaves, and fresh weight of plant. In addition, an obvious reduction of length to width ratio was found in the 4x plants, including stomata, leaflets, pollens, seeds, and roots. The 4x ploidy state of the plants was stable as was proved by evaluation of selection indicators as well as consistent ploidy level at 10th generation plantlets and also on 4x seedlings obtained via self-pollination. The major bioactive compounds, salvianolic acid B, tanshinone I, tanshinone IIA, dihydrotanshinone I and cryptotanshinone, as well as total tanshinones were determined by high performance liquid chromatography (HPLC). The concentrations of dihydrotanshinone I and total tanshinones in the root extract of the 4x plants were significantly higher when compared with the 2x plants. This present study developed a simple and efficient system for inducing and subculture of tetrapolids which have stable ploidy level, enhanced growth characteristics as well as the content of dihydrotanshinone I in the root of S. miltiorrhiza.

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Fertilization the Omission One Test as Determination Limiting Factors for Maize Biomass (Zea mays L.)

AGRINULA: Jurnal Agroteknologi dan Perkebunan ◽

10.36490/agri.v4i2.154 ◽

2021 ◽

Vol 4 (2) ◽

pp. 94-105

Author(s):

Koko Tampubolon ◽

Bagus Fitra Azmi ◽

Perdana Andriano Tamba ◽

Ayu Widya Lestari ◽

Kamaruddin Kamaruddin ◽

...

Keyword(s):

Plant Height ◽

Leaf Growth ◽

Block Design ◽

Relative Yield ◽

Animal Husbandry ◽

Dry Weight ◽

Limiting Factors ◽

Limiting Factor ◽

Test Technique ◽

The Impact

Introduction: The research was aimed to obtain information on the impact of omission one test fertilization as a determination limiting factors for the growth and biomass of maize in variety Bonanza F1. Materials and Methods: The research was located in the experimental field, Faculty of Agriculture and Animal Husbandry, Universitas Tjut Nyak Dhien, Medan from December 2020 until February 2021. The research was applied by Randomized Block Design in non-factorial through fertilization of omission one test that has been converted (urea : SP-36 : KCl = 0.75 : 0.50 : 0.125 g polybag-1). The treatment of this research include P0 = non-fertilization; P1= N+P+K; P2= P+K; P3= N+K; P4= N+P using three replications. The parameters include plant height, leaf growth, total fresh weight, total dry weight, and the percentage of relative yield then processed using ANOVA and continued with DMRT at 5% ± standard error with SPSS v.20 software. Results: Informed that the omission one test technique significantly improved all the characteristics of maize in the variety Bonanza F1. The highest increase in plant height was found in the N+P of 83.65%, meanwhile, the highest leaf and biomass growth characters were found in N+P+K, ranged of 50.00 to 177.81% and 487.60 to 507.37%, respectively. It was obtained that the limiting factor for the maize growth in variety Bonanza F1 was found in the un-fertilization of nitrogen.

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Links between exercise/nutrition and antioxidants - protective effects on immune/respiratory systems as defense against viral infections

The Southwest Respiratory and Critical Care Chronicles ◽

10.12746/swrccc.v8i36.751 ◽

2020 ◽

Vol 8 (36) ◽

pp. 23-31

Author(s):

Abdurrahman Kharbat ◽

Stephen Rossettie ◽

Mimi Zumwalt

Keyword(s):

Viral Infections ◽

Viral Disease ◽

Antioxidant Systems ◽

Protective Effects ◽

Enzymatic Antioxidant ◽

Optimal Dosing ◽

Open Window ◽

The Impact ◽

The Relationship ◽

Harmful Effects

This paper discusses factors involved in COVID-19 pathophysiology, with a focus on nutrition, exercise, enzymatic antioxidant systems, and the interplay between immune tolerance and resistance. Of all the supplements, zinc has the most evidence for effectiveness against viruses. However, these data were based primarily on studies measuring duration of the common cold rather than on COVID-19, and optimal dosing remains unclear. Exercise has been shown to have protective tolerogenic effects against viral infection due to the impact of extracellular superoxide dismutases (EC-SODs). Exercise may have a combination of beneficial and harmful effects on outright resistance to viruses in the short term, but taken as a whole it likely has a net protective effect on the immune system. The evidence is examined through the lens of the open window theory and a thorough investigation of the relationship between EC-SODs and exercise/diet. By better understanding the host-virus relationship, clinicians and researchers alike can collaborate to establish guiding principles regarding the steps that individuals can take to protect against some of the deleterious effects of viral infections. More research in this area is needed to understand the relationships among exercise, nutrition, and viral disease. Keywords: COVID-19, SARS CoV-2, nutrition, zinc, EC-SODs, superoxide dismutase, exercise, enzymatic antioxidant/immune systems

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Corrugated Galvanised Iron Sheet as an Alternative to Conventional Roofing Materials “A case study from Sakteng Wildlife Sanctuary, Bhutan”

International Journal of Scientific Research and Management ◽

10.18535/ijsrm/v6i1.fe01 ◽

2018 ◽

Vol 6 (01) ◽

Author(s):

Sonam Tobgay ◽

Kumbu Dorji ◽

Norbu Yangdon

Keyword(s):

Habitat Management ◽

Positive Impact ◽

Natural Habitat ◽

Drainage System ◽

Development Program ◽

Wildlife Sanctuary ◽

Run Off ◽

Community Pressure ◽

The Impact ◽

Roofing Materials

Corrugated galvanized iron (CGI) sheet as an alternative to conventional roofing material was initiated under the integrated conservation development program (ICDP) of Sakteng Wildlife Sanctuary in the year 2004. The program was aimed at reducing community pressure on natural resources to enhance conservation of biodiversity and keystone fauna and flora species through protection of wild habitat. It has benefited 628 inhabitants of Merak and Sakteng which were identified as the least developed among 15 Gewogs (Blocks) under Trashigang Dzongkhag (District). Data were collected through semi structured questionnaires to study the impact of the program to policy and natural habitat management. Amongst the two types of conventional roofing materials available in the locality, Shingles (79%) were in extensive use in comparison to Bamboo mat (21%) attributing to its durability. However, people prefer to use CGI sheet (100%) roofing which is economical, durable and effective in comparison to Shingle and Bamboo mat roofing, where incidences of water seepage to the room is frequent and requires replacing after 5.6 and 1.7 years respectively incurring higher maintenance costs. Replacing conventional roofing with CGI sheet has a long-term positive impact to conservation of forest and wild habitat. It is estimated that under ideal conditions approximately 5521 healthy matured Fir trees (>4'1''girth) and 1.68 million Bamboos were saved from felling since the initial supply of CGI sheet. However, effective roofing has led to the construction of the illegal permanent concrete huts in the Tsamdro (pastureland) and changes in the architectural designs of their native houses. The need of proper drainage system was also observed as important to reduce the gully erosion from CGI sheet roof run-off.

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A Synoptic Review of Forestry and Forest Products Trade and Production in Africa- The Case of Wood and Non-Wood Forest Products in West Africa

10.20944/preprints202201.0031.v1 ◽

2022 ◽

Author(s):

John Adekunle Adesina ◽

Zhu Jiangang ◽

Tang Xiaolan

Keyword(s):

West Africa ◽

Natural Capital ◽

Natural Habitat ◽

Forest Products ◽

West African ◽

Warning Signs ◽

Low Carbon ◽

Forest Reserves ◽

Impact Reduction ◽

The Impact

According to this study, approximately half of Africa's forests are utilized primarily or partially for the production of wood and non-wood commodities. Aims to evaluate Africa's forestry and forest products, namely Wood Forest Products (WFPs) and Non-wood Forest Products (NWFPs) in the sixteen (16) West African countries. While adhering to the following guidelines: wood extraction and preparation, analyzing wood primarily used as an energy source in Africa, identifying non-wood forest products in Africa, the state of export, trade, and customs procedures in West Africa, and examining the role of forests and forest stakeholders in Africa's low-carbon economy transition. An exploratory literature review of selected wood forest products and non-wood forest products (plants and animals) in West Africa identifying the country, the natural land area with the natural habitat issues of the forest, the species most harvested and traded in the West African sub-region. The study reemphasized some government legislation, policies, and market trade failures and limitations while also stating that trees may help in the low-carbon revolution through interventions aimed at maintaining, improving, and restoring natural capital have demonstrated that high environmental requirements of sustainable forest management (SFM) may be met in both natural and planted forests. The study identified a systematic assessment of the most common forest products (wood and non-wood forest products) considering the available data on the national forest reserves of the selected countries in West Africa. The study also revealed the need for biodiversity conservation of the available forest reserves to help mitigate the impact of global warming targeting the United Nation’s Sustainable Development Goal 13- Climate Action. Which is focused on integrating climate change mitigation, adaptation, impact reduction, and early warning signs into the national policies, improving forest planning and management education, awareness-raising, and institutional capacity within the sub-region.

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The impact of drought on tree growth in Mediterranean sites

10.5194/egusphere-egu21-8635 ◽

2021 ◽

Author(s):

Giovanna Battipaglia ◽

Francesco Niccoli ◽

Arturo Pacheco-Solana

Keyword(s):

Climate Change ◽

Tree Growth ◽

Sustainable Forest Management ◽

Climatic Factors ◽

Management Strategies ◽

Ring Width ◽

Limiting Factor ◽

Individual Tree ◽

Annual Growth Rings ◽

The Impact

Climate-induced forest mortality is a critical issue in the Mediterranean basin, with major consequences for the functioning of these key ecosystems. Indeed, in Mediterranean ecosystems, where water stress is already the most limiting factor for tree performance, climatic changes are expected to entail an increase in water deficit. In this context, annual growth rings can provide short- (e.g., years) and long-term (e.g., decades) information on how trees respond to drought events. With climate change, Pinus pinaster and Pinus pinea L. are expected to reduce their distribution range in the region, being displaced at low altitudes by more drought tolerant taxa such as sub Mediterranean Quercus spp.This study aims was to assess the physiological response of Pinus and Quercus species growing in the Vesuvio National park, located in Southern Italy and where an increase of temperature and drought events has been recorded in the recent years. Our preliminary results underlined the importance of temperature on the tree ring width of all the analyses species. The high temperatures can cause a change in the constant kinetics of the RuBisCo, leading to a consequent decrease in carboxylation rate and thus to a reduction in tree growth. On the other hand, also precipitation seemed to affect the growth of the sampled trees: indeed, in all the chronologies a reduction in growth was found after particular dry years: for example, the low rainfall in 1999 (455 mm/year) determined a drastic decline in growth in 2000 in all the species. In addition to the climatic factors, competition can also play an important role in the growth rate: dendrochronological analyzes have highlighted how stand specific properties (i.e. density, structure and composition) can influence individual tree responses to drought events. The knowledge of those researches should be integrated into sustainable forest management strategies to minimize the potential impacts of climate change on forest ecosystems.

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Wear Based Lifetime Estimation of a Clutch Facing using Coupled Field Analysis

International Journal of Automotive and Mechanical Engineering ◽

10.15282/ijame.18.4.2021.12.0715 ◽

2021 ◽

Vol 18 (4) ◽

Author(s):

A. Kulkarni ◽

R. Mahale ◽

C. Kannan

Keyword(s):

Working Life ◽

Element Model ◽

Friction Material ◽

Inorganic Materials ◽

Field Analysis ◽

Frictional Heat ◽

Ride Quality ◽

Wear Loss ◽

Limiting Factor ◽

The Impact

Repetitive use of the clutch, over a period of time, causes the friction material at the contact surfaces (clutch facing and flywheel/pressure plate) to wear, thus deteriorating its performance and usable life. The working life of a rigid clutch is the limiting factor when it comes to extracting maximum performance from a dual mass flywheel system, which is used in a lot of modern vehicles nowadays to lower fuel consumption and improve ride quality. In this study, we investigate the influence of different groove patterns on wear in rigid clutch facings and estimate their life using a comprehensive finite element model. The wear is calculated and analysed for five different groove patterns across two different inorganic materials, namely FTL180 and TF1600-MC2, using Archard’s Adhesive Wear Model. Coupled multi-physics elements are employed in the analysis to capture the effect of frictional heat generation on wear. We found that the Waffle pattern offered a decrease of 10.4% in volumetric wear loss, a 5.78% decrease in maximum wear thickness and an increase of 11.51% in the average working life is used in city like conditions with frequent engagements. This work sheds light on the impact of groove patterns on clutch facing wear and opens a new path for the design and development of more resilient rigid clutches.

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The Impact of Maternal Health Care Utilization on Probability of Child Survival in India

International Journal of Scientific and Engineering Research ◽

10.14299/ijser.2020.07.07 ◽

2020 ◽

Vol 11 (7) ◽

pp. 1006-1014

Author(s):

Ajit Kumar Jaiswal

Keyword(s):

Health Care ◽

Child Health ◽

Maternal And Child Health ◽

Child Survival ◽

Nutrient Deficiency ◽

Household Wealth ◽

Care Utilization ◽

The Government ◽

The Impact ◽

And Child Health

Maternal and child health programmes plays a key role in reducing infant and child mortality in any population. The Government of India started maternal and child health care services in the first five year plan (1951-56). This study uses data from the fourth round of the National Family Health Survey (NFHS, 2015-16). We are interested to examine the effect of child delivery at a healthcare facility, on child survival. We are followed by Mosley and Chen’s framework (1884), according to the framework, several socioeconomic determinants are grouped into some categories, namely, maternal, environmental contamination, nutrient deficiency, and personal illness control. Consequently, we reduced the number of independent variables to women’s age at birth and education, birth order, low child birth weight, household wealth, and healthcare.

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Mycotoxin Deactivator Improves Performance, Antioxidant Status, and Reduces Oxidative Stress in Nursery Pigs Fed Diets Containing Mycotoxins

Journal of Animal Science ◽

10.1093/jas/skab277 ◽

2021 ◽

Author(s):

Erika Vivian Santos ◽

Dalton Oliveira Fontes ◽

Mara da Silveira Benfato ◽

Fernanda Schäfer Hackenharr ◽

Tiago Salomon ◽

...

Keyword(s):

Oxidative Stress ◽

Antioxidant Status ◽

Control Diet ◽

Negative Control ◽

Antioxidant Systems ◽

Contamination Level ◽

Standard Diet ◽

Nursery Pigs ◽

Inclusion Rate ◽

The Impact

Abstract Ingestion of mycotoxins can result in many problems, including decreased growth rates and immune suppression. The present study aimed to evaluate the impact of the supplementation of a mycotoxin deactivator composed by adsorbent clay minerals, inactivated fermentation extracts of Saccharomyces cerevisiae, blend of antioxidants, organic acids and botanicals in diets containing added mycotoxins for nursery pigs on their performance and antioxidant status. Ninety pigs weaned with 24 days of age (7.12 ± 0.68 kg of BW) were used. Pigs were housed in pens of 3 animals each according to body weight, litter origin and sex. The dietary treatments consisted of feeding the pigs with: a standard control diet as negative control (NC; mycotoxin levels at accepted regulatory Brazilian Ministry of Agriculture standards Deoxynivalenol (DON): <100 ug/ kg; Zearalenone (ZEA): <20 ug/ kg Fumonisins (FB): <1 mg/ kg); the standard diet added with mycotoxins to reach a low contamination level considered as positive low (PCL-; DON: 900 ug/ kg; ZEA: 100 ug/ kg; FB: 5,000 ug/ kg) without deactivator; a positive low added the deactivator at an inclusion rate of 1 kg/ ton (PCL+); the standard diet added with mycotoxins to reach a high contamination level considered as positive high (PCH-; DON: 4,500 ug/ kg; ZEA: 500 ug/ kg; FB: 18,000 ug/ kg) without the deactivator; and a positive high added the deactivator at an inclusion rate of 5 kg/ ton (PCH+). Pigs were individually weighed at the beginning and at the end of each phase and feed intake recorded based on daily pen intake during the experiment. On d 7, 19, 34 and 43 post-weaning blood samples were drawn for antioxidant analyses. Antioxidant enzymes (glutathione peroxidase (GPx) and total superoxide dismutase (TSOD)), vitamins (Vit A, E, and C), and malondialdehyde (MDA)) were evaluated in erythrocyte and plasma samples. Pigs challenged with mycotoxins presented lower performance traits, decrease in the efficiency of central antioxidant systems (↓GPx, ↓TSOD, ↓Vit A, ↓Vit E and ↓Vit C) and a higher oxidative damage to lipids (↑MDA) when compared to the control and deactivator associated treatments. Our findings showed that the use of a mycotoxin deactivator can mitigate the negative impacts on performance and oxidative stress when animals are subjected to diets contaminated by different levels of mycotoxins.

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