South African Journal of Botany最新文献

{"title":"Corrigendum to Physiological responses, ion accumulation and yield performance of wheat (Triticum aestivum L.) to salt stress South African Journal of Botany, Volume 168, May 2024, Pages 417-429","authors":"Atikur Rahman , Sujat Ahmed , Md. Moshiul Islam , Laila Parveen Shathy , Tahmina Akter Urmi , M.Moynul Haque , Manzer H. Siddiqui , Yoshiyuki Murata","doi":"10.1016/j.sajb.2024.05.036","DOIUrl":"10.1016/j.sajb.2024.05.036","url":null,"abstract":"","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142551909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Adulteration in dietary supplements: HPTLC profiling of Withania somnifera and Terminalia bellirica” [South African Journal of Botany Volume 170, July 2024, Pages 220-228]","authors":"Arshad Ahmad Najar , Mohamad Yaqoob Yatoo , Ajaz Ahmad Wani , Sheikh Sayir Aftab , Rabia Jahangir , Bilques Farooq","doi":"10.1016/j.sajb.2024.09.047","DOIUrl":"10.1016/j.sajb.2024.09.047","url":null,"abstract":"","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142551908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to Potential Therapeutic Applications of Cistus laurifolius Extract: Anti-Proliferative, Anti-Cancer Activity on MCF-7, and Anti-Microbial Effects [South African Journal of Botany Volume 169, June 2024, Pages 499-505]","authors":"Ersin Yücel , Ayşe Ak , İlkin Yücel Şengün , Hatice Genç , Tansu Koparal , Hülya Sivas","doi":"10.1016/j.sajb.2024.07.019","DOIUrl":"10.1016/j.sajb.2024.07.019","url":null,"abstract":"","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141852276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cytotoxic activity of Ocimum tenuiflorum crude extracts against an A375 malignant melanoma cell line","authors":"Brenden Moyo,&nbsp;Msizi Mhlongo,&nbsp;Lungile Sitole","doi":"10.1016/j.sajb.2024.10.049","DOIUrl":"10.1016/j.sajb.2024.10.049","url":null,"abstract":"<div><div>Malignant melanoma is a rare skin cancer that transpires in the melanocytes. This is often caused by constant ultraviolet (UV) exposure, which results in genetic mutations leading to carcinogenesis. When left untreated, malignant melanoma may lead to death due to its high metastatic potential, it is therefore regarded as the most dangerous form of skin cancer. Existing cancer treatments, despite their advancements, still have several limitations that impact their effectiveness and applicability, thus prompting the exploration of alternative therapeutic options. Medicinal plants, employed for centuries and embraced by 70 % of the population in developing nations, present a potential avenue for novel treatments. Thus, this study aimed to investigate the potential use of four <em>Ocimum tenuiflorum</em> solvent extracts in treating malignant melanoma. Sequential extraction of <em>O. tenuiflorum</em> was performed to obtain four crude extracts (hexane, dichloromethane, methanolic and ethyl acetate). These extracts were evaluated against the A375 cell line to determine apoptotic induction, with the mode of cell death confirmed flow cytometry. Gas Chromatography-Mass Spectrometry (GC/MS) profiling was performed to identify the possible bioactive constituents of each extract. Screening of the four extracts revealed significant cytotoxic potential against A375 cells, with calculated IC₅₀ values &lt;50 µg/mL. Microscopic analyses unveiled morphological alterations indicative of apoptosis, including cell blebbing, reduced cell size, nuclear fragmentation and potential chromatin condensation. Flow cytometric analysis confirmed that 44.2 ± 2.54 %, 73.6 ± 1.13 % and 67.4 ± 0.70 % of A375 cells underwent late apoptosis induced by the hexane, dichloromethane and ethyl acetate crude extracts respectively. GC/MS metabolite profiling of the ethyl acetate extract using the Shimadzu 2010 QB gas chromatograph revealed the presence of palmitic acid, methyl palmitate, stearic acid, myristic acid and linolenic acid as potential bioactive compounds. The findings from this study thus underscore the anti-cancer properties of <em>O. tenuiflorum</em> crude extracts, demonstrating their efficacy in inducing cytotoxicity in malignant melanoma A375 cells. These in vitro results present promising implications for developing anti-cancer therapies targeting the A375 cell line.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potato Protein Hydrolysate (PPH902) treatment in adipocytes inhibits lipogenesis by activating AMPK","authors":"Yi-Ju Chen ,&nbsp;Ching-Fang Chang ,&nbsp;Rathinasamy Baskaran ,&nbsp;Chih-Hung Liang ,&nbsp;Hsin-Ning Kuo ,&nbsp;Mosleh Mohammad Abomughaid ,&nbsp;Wan-Teng Lin","doi":"10.1016/j.sajb.2024.10.053","DOIUrl":"10.1016/j.sajb.2024.10.053","url":null,"abstract":"<div><div>Obesity is a chronic metabolic disease caused by unbalanced caloric intake, which has serious harm to health and increases the risk of hypertension, hyperlipidemia, diabetes and cardiovascular diseases. Previous studies have shown that Alcalase treatment-derived potato protein hydrolysate (PPH) has the effects of regulating blood pressure and blood sugar in animal experiments, and has cardioprotective, hepato-protective activity and inhibited muscle protein degradation. This study aims to screen the optimal conditions isolating potato protein hydrolysate with potential anti-obesity activity by regulating the mechanism of lipogenesis and lipolysis. 9% potato protein (PP) hydrolysed for 2 h (PPH902) shows high yield and better activity; thus, PPH902 was used in all other experiments. PPH902 at 1600 ppm does not affect the cell viability of 3T3-L1 adipocytes. PPH902 regulates the expression of lipid production-related transcription factors PPARγ, SREBP-1c, and FAS by activating AMPK, thereby inhibiting lipogenesis, and activating phosphorylated HSL to promote lipolysis to increase lipid metabolism. These results show that PPH902 is an effective anti-lipogenesis and lipolysis-promoting hydrolyzate, which has the potential to develop anti-obesity products.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Allelopathy for the sustainable management of agricultural pests: Appraisal of major allelochemicals and mechanisms underlying their actions","authors":"Mo Shadab ,&nbsp;Nourien Bhatti ,&nbsp;Quratul Ain ,&nbsp;Nazish Akhtar ,&nbsp;Uzma Parveen ,&nbsp;Hesham F. Alharby ,&nbsp;Khalid Rehman Hakeem ,&nbsp;M.B. Siddiqui","doi":"10.1016/j.sajb.2024.10.028","DOIUrl":"10.1016/j.sajb.2024.10.028","url":null,"abstract":"<div><div>The global hunger is consistently rising, and also climatic, biotic, and abiotic stress factors are further aggravating this situation by severely impacting crop health and eventually threatening the food security of billions of people. Additionally, the escalating global food demands must be met by doubling food production by 2050. To fulfil this requirement, world agriculture is adopting extensive use of solely chemicals-based fertilizers and crop-protection agents for improving the nourishment of the crops and their protection against deadly weeds and pests respectively. Unfortunately, these unsustainable practices have led to increased biomagnification, bioaccumulation, resistance in most weeds and pests, soil-infertility, and hampered soil-crop-human continuum. Notably, allelopathy, a natural process in which plants release chemicals (primarily recognised for their ability to impact neighbouring plant development), has emerged as a viable long-term technique for controlling key agricultural pests such as weeds, plant-feeding insects, and mites. Despite these facts, the discussion on major allelochemicals and the mechanisms underlying their actions in crops is meager. Taking into account recent literature, this paper aims to: (i) overview allelopathy and the major plant physiological and biochemical responses to important allelochemicals; (ii) enlighten the management of weed via both conventional practices and the modern approaches implying allelopathy; (iii) highlight the major molecular mechanisms underlying the actions of important allelochemicals; (iv) discuss the main plant allelochemicals/ botanicals known to control the major non-weed pests, such as insect pests, nematodes, bacteria and fungi; and (v) also to present the main conclusions of the paper, potential limitations, challenges, and the future prospects. In summary, a critical appraisal of the literature available on the subject confirmed that the allelopathic phenomenon will undergo further exploration as an alternative method for control of major agricultural pests, potentially becoming a part of an integrated, eco-friendly, and organic pest management approach.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial and cytotoxic effects of Lippia alba essential oil on multidrug-resistant Acinetobacter baumannii clinical isolates","authors":"Caroline Ferreira de Santana ,&nbsp;Isis Caroline da Silva Cirino ,&nbsp;Larissa Isabela Oliveira de Souza ,&nbsp;Marcia Vanusa da Silva ,&nbsp;Daniela Maria do Amaral Ferraz Navarro ,&nbsp;Júlio César Ribeiro de Oliveira Farias de Aguiar ,&nbsp;Regina Celia Bressan de Queiroz Figueiredo ,&nbsp;Ana Raquel Pereira da Silva ,&nbsp;Clara Mariana Gonçalves Lima ,&nbsp;Evandro G. da Silva Jr ,&nbsp;Henrique Douglas Melo Coutinho ,&nbsp;Tereza Cristina Leal-Balbino","doi":"10.1016/j.sajb.2024.10.019","DOIUrl":"10.1016/j.sajb.2024.10.019","url":null,"abstract":"<div><div>This study investigated the antimicrobial and cytotoxic effects of <em>Lippia alba</em> essential oil (LaEO) against five clinical isolates of multidrug-resistant <em>A. baumannii</em> from various infection sites in public hospitals in Recife, Pernambuco, Brazil. Gas chromatography-mass spectrometry analysis revealed 36 compounds in LaEO, with carvacrol (48.62 %), ρ-cymene (7.17 %), γ-terpinene (5.09 %), and thymol (5.00 %) as the most abundant constituents. LaEO exhibited potent inhibition of bacterial growth at MIC values ranging from 64 to 128 μg/mL, with MBC values similar to MIC. Additionally, interactions between LaEO and clinical antimicrobials (imipenem and gentamicin) demonstrated additive and synergistic effects when combined. Cytotoxicity assessment using the MTT assay on peritoneal macrophages revealed no significant difference in cell viability compared to the control, with a CC50 exceeding 512 μg/mL. Hemolytic activity on human red blood cells was minimal, with less than 2 % hemolysis observed at bacterially inhibitory concentrations.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Living with giant ferns: An ethnobotanical investigation of scaly tree ferns (Cyatheaceae) in a global context","authors":"Ranil Rajapaksha ,&nbsp;Ruwan Chamara ,&nbsp;Yao-Moan Huang ,&nbsp;Rijan Ojha ,&nbsp;Van The Pham ,&nbsp;Caroline Modena de Medeiros ,&nbsp;Andi Maryani A. Mustapeng ,&nbsp;Fulgent Coritico ,&nbsp;Taherul Islam ,&nbsp;Liuder Isidoro Rodríguez Coca ,&nbsp;Rainer W. Bussmann ,&nbsp;Peris Kamau","doi":"10.1016/j.sajb.2024.10.037","DOIUrl":"10.1016/j.sajb.2024.10.037","url":null,"abstract":"<div><div>Scaly tree ferns stand out among other pteridophytes not only due to their ancient lineage, which retains specific primitive characteristics in their appearance and growth habits, but also because of their remarkable diversity, local endemism, and distinctive ethnobotanical uses. Pteridophytes generally have received less attention than seed plants due to their limited economic potential and utility. Our experiences and knowledge show that scaly tree ferns possess substantial economic potential and offer higher utility than other fern groups. Analyzing ethnobotanical knowledge is a well-established technique and tool to understand any plant group's significance and economic potential. Therefore, we aimed to compile ethnobotanical knowledge related to scaly tree ferns from various ethnic groups worldwide, utilizing published information and consulting with key informants. In the present survey, 61 species of scaly tree ferns were identified that belong to four genera (<em>Alsophila, Cyathea, Gymnosphaera</em>, and <em>Sphaeropteris</em>), which are utilized across 41 countries worldwide. The ethnobotanical uses of these 61 tree fern species are classified into four user categories: medicinal, food and animal feed, ornamental, and other uses. This study underscores the potential for integrating traditional ethnobotanical knowledge about scaly tree ferns with modern scientific understanding. It also emphasizes the critical importance of preserving and compiling this knowledge that has been passed down through generations within traditional communities. This preservation ensures that such valuable knowledge is not lost to future generations.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revisiting the fermentation of Sceletium tortuosum","authors":"Elizaveta Koroleva ,&nbsp;Herman Redelinghuys ,&nbsp;Cleo G. Conacher ,&nbsp;Corné van Deventer ,&nbsp;Jody R Harvey ,&nbsp;Alfred Botha ,&nbsp;Marina Rautenbach ,&nbsp;Marietjie A. Stander","doi":"10.1016/j.sajb.2024.10.044","DOIUrl":"10.1016/j.sajb.2024.10.044","url":null,"abstract":"<div><div><em>Sceletium tortuosum,</em> a medicinal plant used as natural antidepressant, has been fermented traditionally to yield what is believed by its users to be a stronger more potent product. The question persists if fermenting is changing the actives (mesembrine alkaloids) in the plant material or if it is just a natural way of concentrating it and increasing its bioavailability. In this study the plant material was macerated and incubated over a period of 9 days with regular sampling to monitor any chemical and metagenomic changes over time. Ultra-high pressure liquid chromatography-mass spectrometry (UHPLC-MS) analysis showed that the first significant changes in the chemical composition occurred after 5 days when Fusarium species became the predominant species in the microflora. To confirm whether fusaroid taxa do play a role in the alkaloid production and/or changes in the alkaloid profile, the sterilized plant biomass was inoculated with three Fusarium species as monocultures and the fermentation monitored. The alkaloid profile in the control did not change over time, but similarly to the natural fermentation, one of the Fusarium species yielded an increase in epimesembranol and decreases in some of the other alkaloids which indicates that the microbiome indeed plays a role.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Successful practices for valorization of microalgal biomass for inclusion in circular economy","authors":"Juliana Ivanova,&nbsp;Liliana Gigova,&nbsp;Svetoslav Alexandrov","doi":"10.1016/j.sajb.2024.10.039","DOIUrl":"10.1016/j.sajb.2024.10.039","url":null,"abstract":"<div><div>Global wastewater generation is enormous and continuously increasing, becoming a huge challenge to humanity. The use of wastewater for cultivation of microalgae has emerged as a potential cost-effective strategy for large-scale production of microalgae biomass. This strategy also offers an effective approach for removing nutrients from wastewater, making its treatment sustainable, eco-friendly and energy efficient. Among the different types of wastewater, wastewater from anaerobic digestion plants deserves attention, since this process generates a large amount of residue called digestate, reaching up to 90 % of the amount of substrate. Using the anaerobic digestate to cultivate algae is a way to reduce its harmful impact on the environment, improve the economic profitability of anaerobic digestion facilities and convert digestate from a waste to a beneficial by-product. By selecting and reviewing 129 articles published in Scopus between 2010 and 2024, the present review investigates and evaluates the possibilities of increasing the biomass value of microalgae cultivated in wastewater as a growth medium and highlights the importance of pre-selection of appropriate (non-toxic) wastewater to obtain usable “safe” microalgal biomass that can be further utilized to produce high added value products. The results indicated that the biomass of microalgae grown in non-toxic wastewater, including digestate, can have a number of economically and environmentally sustainable applications, the most important of which are its use as a feed, feed ingredient, ingredient of fish feed, as well as for the production of health-related compounds (proteins containing essential amino acids, polyunsaturated fatty acids, carotenoids, phycobiliproteins, polysaccharides, etc.), biofertilizers and biostimulants for agriculture. Cultivation of microalgae for the simultaneous treatment of non-toxic wastewater and obtaining biomass and high-value products can be an effective and prospective approach for the valorization of microalgae biomass within the modern concept of а circular bioeconomy.</div></div>","PeriodicalId":21919,"journal":{"name":"South African Journal of Botany","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}