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Mitigation of Soil Pollution by Biodegradation of Plastic Materials through Activity of Mealworms 通过黄粉虫的活动生物降解塑料材料减轻土壤污染
Pub Date : 2023-12-29 DOI: 10.9734/ajrcs/2023/v8i4240
H. Kanwal, Tahreem Fatima, Umer Sharif, Iqra Maryam, Komal Naz, Fareesa Ameer, Sanaullah
An excellent illustration of this idea is the use of insects in circular production systems, since they are capable of converting a variety of organic waste and byproducts into nutrient-rich feedstocks that are subsequently recycled back into the production cycle. This study reviews the use and applicability of mealworms (Tenebrio molitor) in many industries, including food, agriculture, pharmaceuticals, and more, in order to investigate their potential in circular production systems. This insect is highly versatile and has the potential to replace other sources of nutrients and other vital components, but its adoption and acceptability are currently hampered by a number of behavioral and legislative issues. The majority of plastics made from petroleum do not biodegrade in the environment. Research on the biodegradation of plastics by insects was prompted by observations of damage, penetration, and ingestion of plastics by insects and their larvae. More investigation is required to fully understand the mechanisms underlying the fast biodegradation of PS and PE. It is probable that intestinal microbial activities and the host digestive system work in concert to produce this effect. This review's primary goal is to examine insects' potential from a circular economy standpoint, with a particular emphasis on mealworm larvae. This research will also help to mitigate climate change by lowering soil contamination.
在循环生产系统中使用昆虫就是对这一理念的最好诠释,因为昆虫能够将各种有机废物和副产品转化为营养丰富的原料,然后再循环到生产循环中。本研究回顾了黄粉虫(Tenebrio molitor)在食品、农业、制药等多个行业中的用途和适用性,以探讨其在循环生产系统中的潜力。这种昆虫用途广泛,具有替代其他营养来源和其他重要成分的潜力,但其应用和可接受性目前受到一些行为和立法问题的阻碍。大多数由石油制成的塑料在环境中不会发生生物降解。昆虫及其幼虫对塑料的破坏、穿透和吞食现象促使人们对塑料的生物降解进行研究。要充分了解 PS 和 PE 的快速生物降解机制,还需要进行更多的调查。可能是肠道微生物活动和宿主消化系统共同作用产生了这种效果。本综述的主要目的是从循环经济的角度研究昆虫的潜力,尤其侧重于黄粉虫幼虫。这项研究还有助于通过降低土壤污染来减缓气候变化。
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引用次数: 0
Antifungal Activity of Cassia fistula L. Extracts against Macrophomina phaseolina (TASSI.) Goid.: In vitro Study 拳叶决明提取物对相叶巨霉菌 (TASSI.) Goid 的抗真菌活性:体外研究
Pub Date : 2023-12-19 DOI: 10.9734/ajrcs/2023/v8i4239
Swati Choudhary, Dipjyoti Chakraborty
Aim: To evaluate the anti-fungal properties of Cassia fistula with alcohol soluble and aqueous extracts against Macrophomina phaseolina. Methods: Ethanolic, methanolic and aqueous extracts were prepared and qualitative and quantitative analysis of phytoconstituents was done. The antioxidant and antifungal activity of the extracts were determined. Results: It was observed that the methanolic extract had the highest (15.65%) extraction yield, whereas ethanolic extract had the lowest (12.45%) extraction yield. While screening for secondary metabolites, cardiac glycosides were found to be lacking in all three solvent extracts, while sterols was absent in the aqueous extract. The methanolic extract contained the highest amounts of phenolic compounds (13.38±0.060 mg GAE/g dw.), flavonoid (10.58±0.074 mg QUE/g dw.), tannin (11.43±0.052 mg TAE/g dw.), and alkaloid (16.18±0.062 mg AE/g dw.). The highest antioxidant activity was observed in the methanolic extract at 300 µg/ml (% inhibition, 63.02%). Antifungal activity against M. phaseolina was also highest (68.07%) for the methanolic fraction. Conclusion: C. fistula extracts may be further be explored to formulate antifungal agents.
目的:评估瘘管决明醇溶性提取物和水性提取物对相思豆大型滋养霉菌的抗真菌特性。 方法:制备乙醇提取物、甲醇提取物和水提取物:制备乙醇、甲醇和水提取物,并对植物成分进行定性和定量分析。测定了提取物的抗氧化和抗真菌活性。 结果表明据观察,甲醇提取物的萃取率最高(15.65%),而乙醇提取物的萃取率最低(12.45%)。在筛选次生代谢物时,发现三种溶剂提取物中都缺乏强心苷,而水提取物中缺乏甾醇。甲醇提取物中的酚类化合物(13.38±0.060 毫克 GAE/克干重)、类黄酮(10.58±0.074 毫克 QUE/克干重)、单宁(11.43±0.052 毫克 TAE/克干重)和生物碱(16.18±0.062 毫克 AE/克干重)含量最高。甲醇提取物的抗氧化活性最高,为 300 µg/ml(抑制率为 63.02%)。甲醇提取物对相思豆的抗真菌活性也最高(68.07%)。 结论瘘管属植物提取物可进一步用于配制抗真菌剂。
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引用次数: 0
The Significance of Nanoparticles in Plant Tolerance to Abiotic Stress in Horticulture Crops: A Review 纳米粒子在园艺作物耐受非生物胁迫方面的意义:综述
Pub Date : 2023-11-28 DOI: 10.9734/ajrcs/2023/v8i4229
Muhammad Faisal, Muhammad Awais, Naghina Kanwal, Asima Rafi, Iram Batool, Muhammad Zeeshan Hanif, Rimsha Zaheer
Not only are horticultural crops necessary for human sustenance, but they also enhance the aesthetic appeal of our surroundings. They provide a wealth of essential nutrients in addition to visual attractiveness. However, abiotic factors such as heat, drought, nutrient deficits, and heavy metal stress pose several obstacles to these crops, severely impeding their development and output. Many approaches have been used to address these issues, such as genetic alterations to increase stress resistance. Several industry applications, including agricultural ones. Nanotechnology offers novel solutions in the field of agriculture, including the remediation of soil and water, plant protection at the nanoscale, and the application of nano-nutrition to crops. In order to ensure sustained success in horticulture crops that face a range of environmental problems, these applications are essential. Nevertheless, there is still much to learn about the specific ways in which nanoparticles interact with plants, even in spite of the fact that their use in a wide range of applications is growing. This offers agriculture a successful and sustainable future.
园艺作物不仅是人类赖以生存的必需品,而且还能提升我们周围环境的美感。除了视觉吸引力之外,它们还提供了丰富的必需营养。然而,高温、干旱、养分缺乏和重金属胁迫等非生物因素对这些作物造成了一些障碍,严重阻碍了它们的生长和产量。为解决这些问题,人们采用了许多方法,如改变基因以提高抗逆性。一些工业应用,包括农业应用。纳米技术为农业领域提供了新颖的解决方案,包括土壤和水的修复、纳米级植物保护以及将纳米营养应用于作物。为了确保面临一系列环境问题的园艺作物获得持续成功,这些应用至关重要。然而,尽管纳米粒子的应用越来越广泛,但关于纳米粒子与植物相互作用的具体方式仍有很多东西需要学习。这为农业提供了一个成功和可持续发展的未来。
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引用次数: 0
Screening for High-Yielding Barley Genotypes with Adequate Foliar Disease Resistance in North Delta of Egypt 在埃及北三角洲地区筛选具有足够叶面抗病性的高产大麦基因型
Pub Date : 2023-11-27 DOI: 10.9734/ajrcs/2023/v8i4228
EL-Shawy E. E., Ashgan M. Abd El-Azeem, Sally E. El-Wakeel, A. Shahin, Mohamed A. Gad
In addressing the global impact of fungal foliar diseases on barley yield; namely powdery mildew, net blotch and leaf rust, this study undertakes a robust phenotypic and genotypic evaluation. A set of 132 barley genotypes, were evaluated under conditions of elevated pathogenic stress. Multivariate analyses revealed statistically significant inter-genotypic variances for all measured agronomic and pathological traits, concomitant with noticeable seasonal effects. In a nuanced observation, the genotype-by-season interaction elicited significant impacts across a plethora of traits, with the exception of spike length and thousand grain weight. From a quantitative genetics perspective, broad-sense heritability estimates were remarkably high: 97.2% for powdery mildew, 89.3% for net blotch, and 97.5% for leaf rust. Concurrently, genetic advance estimates for biological yield, grain yield, powdery mildew, net blotch, and leaf rust registered in the high to very high categories. Correlational analyses substantiated a positive linear relationship between grain yield and maturity date, plant height and biological yield. Using biplot analysis, 12 genotypes were identified that showed high yield and resistance to powdery mildew, net blotch, and leaf rust. Thus, investigation illuminates the possibility of deploying high-yielding, disease-resistant barley cultivars as an effective strategy for mitigating the deleterious effects of fungal foliar pathogens on barley production in Egypt.
针对真菌性叶面病害(即白粉病、网斑病和叶锈病)对大麦产量的全球性影响,本研究进行了强有力的表型和基因型评估。在病原菌胁迫加剧的条件下,对 132 种大麦基因型进行了评估。多变量分析表明,在所有测量的农艺和病理性状中,基因型间的差异都具有统计学意义,同时还存在明显的季节性影响。一个细微的观察结果是,除穗长和千粒重外,基因型与季节的交互作用对大量性状都有显著影响。从数量遗传学的角度来看,广义遗传力估计值非常高:白粉病为 97.2%,净斑病为 89.3%,叶锈病为 97.5%。同时,生物产量、谷物产量、白粉病、净斑病和叶锈病的遗传预估值也处于高到非常高的水平。相关分析证实,谷物产量与成熟期、株高和生物产量之间存在正线性关系。通过双图分析,确定了 12 个既高产又抗白粉病、网斑病和叶锈病的基因型。因此,这项调查揭示了将高产、抗病的大麦栽培品种作为减轻真菌性叶面病原体对埃及大麦生产有害影响的有效策略的可能性。
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引用次数: 0
Effects of Salinity Stress on Growth Parameters of Soybeans (Glycine max) Cultivated in Obubra Local Government Area, of Cross River State Nigeria 盐度胁迫对尼日利亚克罗斯河州 Obubra 地方政府地区种植的大豆(Glycine max)生长参数的影响
Pub Date : 2023-11-23 DOI: 10.9734/ajrcs/2023/v8i4227
A. Aboh, Eyong, Oduba Ikwa
Soybean (Glycine max) is a strategic crop plant grown to obtain edible oil and forage. High sensitivity is one of the biggest problems with soybean crop. A pot experiment was conducted in the screen house at the Cross River University of Technology, Obubra Campus to investigate the effects of different salt concentrations on the growth parameters of three different varieties of soybeans (Glycine max). The experiment was laid in complete randomized design (CRD) with twenty replicates for each variety. Growth parameters which include germination percentage, plant height, number of leaves and number of branches per plant were measured, and data collected was subjected to statistical analysis using Analysis of variance (ANOVA) and means were compared using Duncan’s New Multiple Range Test (DNMRT). The results showed that salinity stress led to a significant reduction in percentage of germination, plant height, number of leaves, and number of branches per plant over control. At 30mM NaCl which was the highest level of saline water TGX 1987-10F had a better germination percentage as compared to other varieties, which might be because of some salt tolerant genes. Plant height reduced significantly under salinity stress as compared with the control, but TGX 1835-10F at 30mM which was the highest saline treatment showed a better salt tolerance level as compared with other varieties. Number of leaves per plant, as the salinity levels increases it affected the number of leaves. There was a drastic reduction in the number of leaves with increasing salinity levels as compared with the control. TGX 1987-10F had the highest number of leaves and it was closely followed by TGX 1835-10E while 1448-2E was the least and there were significantly different from the ones at different salinity levels. The result revealed highly significant differences (p=0.05) in the varieties, with TGX 1987-10F as the best variety appropriate for saline regions. It is therefore recommended that, TGX 1987-10F should be cultivated in saline regions since it showed a better tolerance level as compared to other varieties.
大豆(Glycine max)是一种具有战略意义的作物,种植大豆是为了获得食用油和饲料。高敏感性是大豆作物最大的问题之一。为了研究不同浓度的盐对三个不同品种的大豆(Glycine max)生长参数的影响,我们在奥布布拉校区的克罗斯河理工大学(Cross River University of Technology)筛选室进行了一项盆栽实验。实验采用完全随机设计(CRD),每个品种有 20 个重复。测量的生长参数包括发芽率、株高、叶片数和每株分枝数,收集的数据采用方差分析(ANOVA)进行统计分析,平均值采用邓肯新多重范围检验(DNMRT)进行比较。结果表明,与对照组相比,盐分胁迫导致发芽率、株高、叶片数和每株分枝数显著减少。与其他品种相比,在 30mM NaCl(最高盐水浓度)条件下,TGX 1987-10F 的发芽率较高,这可能与某些耐盐基因有关。与对照相比,TGX 1835-10F 在盐水胁迫下的株高明显降低,但与其他品种相比,TGX 1835-10F 在 30mM 的最高盐水条件下表现出更好的耐盐性。随着盐度的增加,每株植物的叶片数也受到影响。与对照相比,随着盐度的增加,叶片数量急剧减少。TGX 1987-10F 的叶片数最多,紧随其后的是 TGX 1835-10E,而 1448-2E 的叶片数最少,且与不同盐度水平的对照有显著差异。结果表明,各品种之间存在非常显著的差异(p=0.05),TGX 1987-10F 是最适合盐碱地区种植的品种。因此,建议在盐碱地区种植 TGX 1987-10F,因为与其他品种相比,它的耐盐性更好。
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引用次数: 0
Using CRISPR/Cas9 Technology to Improve Crops and Address the Global Food Crisis: A Review 利用 CRISPR/Cas9 技术改良作物,应对全球粮食危机:综述
Pub Date : 2023-11-20 DOI: 10.9734/ajrcs/2023/v8i4226
Muhammad Ashar Abdullah, Sana Fatima, Fasiha Khaliq, Muzamal Mehmood, Talha Yousaf, Muhammad Bilal Mustafa, Muhammad Qamer Abbas, Ali Hassan
By developing a revolutionary method for modifying the genomes of living things, genome editing (GE) has completely changed the biological sciences. Recent years have seen the development of several technologies that make altering complex genomes possible. For agricultural crop production to be sustained and contribute to global food security, a fast and dependable method of raising yield and resilience to different environmental pressures is therefore required. The GE instruments for crop enhancement are explained in detail in this analytical research. Zinc-finger nucleases (ZFNs), transcriptional activator-like effector nucleases (TALENs), and clustered regularly interspaced short palindromic repeats (CRISPR) are a few examples of these tools. This category also includes mega-nucleases (MNs). In particular, the most recent advancements in the use of CRISPR/Cas9 for genome editing for major agricultural improvements - like the creation of crops that are more yielding and of higher quality - are covered this paper. When this approach is put into practice, non-transgene crops with desired traits will be produced, which might lead to increased yield capacity under different environmental challenges. To increase agricultural production and guarantee food security, the CRISPR/Cas9 methodology may be used in conjunction with existing and future breeding techniques (such as omics-assisted breeding and speed breeding). The difficulties and restrictions associated with CRISPR/Cas9 have also been covered. Plant breeders and scientists doing a detailed analysis of the use of CRISPR/Cas9 to enhance crops by focusing on the desired gene will find this material to be helpful.
基因组编辑(GE)是修改生物基因组的革命性方法,它彻底改变了生物科学。近年来,多项技术的发展使改变复杂基因组成为可能。因此,要维持农作物生产并促进全球粮食安全,就需要一种快速可靠的方法来提高产量和对不同环境压力的适应能力。本分析研究将详细介绍用于提高作物产量的基因工程工具。锌指核酸酶(ZFNs)、转录激活剂样效应核酸酶(TALENs)和簇状规则间隔短回文重复序列(CRISPR)是这些工具的几个例子。这类工具还包括巨型核酸酶(MNs)。本文特别介绍了利用 CRISPR/Cas9 进行基因组编辑以实现重大农业改良的最新进展,例如创造出产量更高、质量更好的农作物。当这种方法付诸实践时,将培育出具有所需性状的非转基因作物,这可能会提高在不同环境挑战下的产量能力。为提高农业产量和保障粮食安全,CRISPR/Cas9 方法可与现有和未来的育种技术(如组学辅助育种和快速育种)结合使用。此外,还介绍了与 CRISPR/Cas9 相关的困难和限制。植物育种家和科学家在详细分析 CRISPR/Cas9 的使用时,通过聚焦于所需基因来增强作物,会发现本资料很有帮助。
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引用次数: 0
Enhancing Crop Protection and Yield through Precision Agriculture and Integrated Pest Management: A Comprehensive Review 通过精准农业和病虫害综合防治提高作物保护和产量:全面回顾
Pub Date : 2023-11-17 DOI: 10.9734/ajrcs/2023/v8i4225
Alhaji Alusine Kebe, Shumaila Hameed, Muhammad Sohail Farooq, Abu Sufyan, Muhammad Babar Malook, Sayed Awais, Muhammad Riaz, Muhammad Waseem, Usman Amjad, Nasir Abbas
The increasing global population has intensified the necessity for sustainable and efficient agricultural practices. One promising avenue for meeting this demand is the synergy between Precision Agriculture (PA) and Integrated Pest Management (IPM). This review paper aims to scrutinize the multifaceted relationship between PA and IPM in augmenting crop protection and yield. Utilizing a comprehensive analysis of existing literature, the study elucidates how cutting-edge technologies in PA, such as drone imaging and soil sensor networks, can be harmoniously integrated with IPM strategies. These encompass biological, chemical, and cultural tactics to manage pest populations and mitigate damage, thereby fostering an environment conducive to optimal crop growth. The review identifies that the confluence of PA and IPM not only enhances the efficiency of resource use but also mitigates the environmental footprint of agricultural activities. Moreover, we delve into case studies that demonstrate significant yield improvements and cost reductions, underscoring the economic viability of integrating PA and IPM. The findings highlight the transformative potential of marrying these two domains, suggesting that such integration could be a cornerstone in the future of sustainable agriculture. The paper concludes by outlining research gaps and proposing avenues for future studies, emphasizing the need for multi-disciplinary approaches to fully unlock the potential of this integration.
全球人口的不断增长加剧了可持续和高效农业实践的必要性。精准农业(PA)与病虫害综合防治(IPM)之间的协同作用是满足这一需求的一个前景广阔的途径。本综述论文旨在仔细研究精准农业(PA)与虫害综合防治(IPM)在提高作物保护和产量方面的多方面关系。通过对现有文献的全面分析,该研究阐明了无人机成像和土壤传感器网络等精准农业的尖端技术如何与虫害综合防治战略和谐地结合在一起。这些策略包括生物、化学和文化策略,用于管理害虫种群和减轻损害,从而营造有利于作物最佳生长的环境。综述指出,害虫防护与虫害综合防治的结合不仅能提高资源利用效率,还能减轻农业活动对环境的影响。此外,我们还深入研究了一些案例,这些案例表明产量显著提高,成本明显降低,凸显了将农艺学与虫害综合防治相结合的经济可行性。研究结果凸显了将这两个领域结合起来的变革潜力,表明这种整合可能成为未来可持续农业的基石。论文最后概述了研究差距,并提出了未来研究的途径,强调需要采用多学科方法来充分释放这种整合的潜力。
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引用次数: 0
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Asian Journal of Research in Crop Science
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