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Morphometric Analysis of Fouquieria splendens Callogenesis by Image Segmentation Strategies 应用图像分割策略对金花愈伤组织形成的形态计量学分析
Pub Date : 2022-12-05 DOI: 10.24018/ejbio.2022.3.6.432
Mishell W. Miranda-Quenel, J. A. Paz-Delgado, A. Rodríguez-Dorantes
Developmental biology needs also the quantification of cellular properties during development and experimental data as a prerequisite to the study of developing cellular structures of plants and computational techniques are useful information that includes image processing, digital morphology and computational geometry. This work applies the CellSet software that performs quantitative analysis of cellular geometry data by shape descriptors, to analyze the morphogenetic development of Fouquieria splendens callus by segmentation analysis of images.
发育生物学还需要在发育过程中对细胞特性进行量化,并将实验数据作为研究植物细胞结构发育的先决条件,而计算技术是有用的信息,包括图像处理、数字形态学和计算几何。本研究应用CellSet软件,通过形状描述符对细胞几何数据进行定量分析,通过图像分割分析,分析了锦绣花愈伤组织的形态发生发展。
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引用次数: 0
ANOVA of Cerium Chloride on Morphology and Metamorphosis Development in Tadpoles of C. melanogaster 氯化铈对黑腹果蝇蝌蚪形态和变形发育的方差分析
Pub Date : 2022-10-23 DOI: 10.24018/ejbio.2022.3.5.421
Hanwen Mi
In this experiment, the effects of 0.004 mg·L-1, 0.02 mg·L-1, 0.1 mg·L-1, and 0.5 mg·L-1 cerium chloride solutions on the growth and metamorphosis development of the tadpoles of the black spotted frog were investigated. The experimental results showed that cerium chloride solution at 0.5 mg·L-1significantly reduced the survival rate of tadpoles, which was 6.67% at 168h (7d) in the 0.5 mg·L-1 treatment compared with 93.3% in the blank control (lake water). The growth condition (body weight) at 168h (7d) (0.56 g) was different from that of the blank control (lake water) tadpoles (The growth (mass) of tadpoles at 0.5 mg·L-1 slowed down significantly in early development compared to the blank control (lake water) tadpoles (0.67g ± 0.05g); at the same time, we noticed that the tadpoles at 0.5 mg·L-1 concentration were in a dormant state of growth, and the mass was not significantly different compared to the beginning of the experiment. The metamorphosis time of tadpoles in the high concentration of cerium chloride salt solution (31 ± 5 days) was greater than that of the blank control tadpoles (26 ± 3 days). Tadpoles at concentrations of 0.02 mg·L-1, 0.1 mg·L-1, and 0.5 mg·L-1 were significantly heavier than the blank control tadpoles at metamorphosis. The results of this experiment indicated that moderate concentration levels of cerium chloride (0.004 mg·L-1, 0.02 mg·L-1) could significantly accelerate the growth and promote the metamorphosis development of the tadpoles of C. melanogaster.
本实验研究了0.004mg·L-1、0.02mg·L-1,0.1mg·L-1和0.5mg·L-1氯化铈溶液对黑斑蛙蝌蚪生长和变态发育的影响。实验结果表明,0.5mg·L-1的氯化铈溶液显著降低了蝌蚪的存活率,在处理168h(7d)时,0.5 mg·L-1处理的蝌蚪存活率为6.67%,而空白对照(湖水)的存活率为93.3%。168h(7d)(0.56g)时的生长条件(体重)与空白对照(湖水)蝌蚪不同(0.5mg·L-1时,蝌蚪的生长(质量)在早期发育中明显低于空白对照(湖)蝌蚪(0.67g±0.05g);同时,我们注意到0.5mg·L-1浓度下的蝌蚪处于休眠生长状态,质量与实验开始时没有显著差异。蝌蚪在高浓度氯化铈盐溶液中的变态时间(31±5天)大于空白对照组(26±3天)。0.02mg·L-1、0.1mg·L-1和0.5mg·L-1的蝌蚪在变态时显著重于空白对照蝌蚪。实验结果表明,中等浓度的氯化铈(0.004mg·L-1,0.02mg·L-1)能显著促进黑腹蛛蝌蚪的生长和变态发育。
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引用次数: 0
Potato (Solanum tuberosum L.) Plantlet Regeneration in Ammonium Nitrate Free Stock Solution-1 of Murashige & Skoog (MS, 1962) Plant Tissue Culture Medium 马铃薯(Solanum tuberosum L.)植株在无硝酸铵储备溶液中的再生Murashige&Skoog(MS,1962)植物组织培养基-1
Pub Date : 2022-10-23 DOI: 10.24018/ejbio.2022.3.5.413
M. E. Hoque, H. Hena, Md. Ershad Ali
Potato (Solanum tuberosum L.) plantlet regeneration potentiality was studied in ammonium nitrate (NH4NO3) free tissue culture medium. Four different treatments were designed from the compositions of the stock solution-01 of plant tissue culture medium. Those were -Treatment-1 (Stock solution -01 as recommended by Murashige & Skoog (1962), Treatment-2 (MS stock solution-01 without having NH4NO3), Treatment-3 (MS stock solution-01without NH4NO3 but other component had double concentration), Treatment-4 (Readymade MS powder, Duchefa Biocheme, The Netherland). Shoot length, shoot diameter, node number and leaf number per plantlet were highest in Treatment-4 at 14, 21 and 28 days after inoculation (DAI). Shoot regeneration parameters were statistically similar with the treatment-3 and the check treatment-1. But the check treatment-1 showed better result in root number and root length (cm) as compared to treatment-3 and treatment-4. The treatment-2 showed lowest result in each of the said parameter. The stock solution-01 which was formulated without ammonium nitrate and has double dose of other ingredient has the potentiality for potato plantlet regeneration, but it was not as suitable as Readymade MS powder (Duchafa, The Netherland).
研究了马铃薯(Solanum tuberosum L.)在无硝酸铵(NH4NO3)组织培养基中的再生潜力。以植物组织培养基原液-01为原料,设计了4种不同的处理方案。它们是-处理-1 (Murashige & Skoog(1962)推荐的原液-01),处理-2(不含NH4NO3的MS原液-01),处理-3(不含NH4NO3的MS原液-01,但其他成分浓度加倍),处理-4(现成的MS粉末,Duchefa biochem,荷兰)。接种后14、21和28 d,处理4的茎长、茎粗、节数和单株叶数最高。茎再生参数与处理3和对照处理1具有统计学上的相似性。但对照处理1在根数和根长(cm)方面均优于对照处理3和对照处理4。治疗-2在上述参数中均显示出最低的结果。不添加硝酸铵,添加双倍剂量其他成分的原液-01具有马铃薯植株再生的潜力,但不如现成的MS粉(Duchafa,荷兰)。
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引用次数: 0
Microbial Quality, Vitamin, Mineral and Proximate Composition of Some Fresh Fruit Juice Samples 一些新鲜果汁样品的微生物质量、维生素、矿物质和近似成分
Pub Date : 2022-10-23 DOI: 10.24018/ejbio.2022.3.5.397
I. C. Oladipo, Ruth Oyelami, Kehinde Dorcas Ogundeji, Emmanuel Oluwakayode Akinteye, A. G. Adewoyin, Abigail Oluseye Oladipo
The high rate of food fraud in the food industry has resulted in direct threat to consumer’s health. To address this, the present study investigated vitamin c, minerals, microbial, nutritional and sensory qualities of some freshly produced fruit juices in order to encourage consumers to make their own fruit juices in the comfort of their homes. The pH of the fruit juice samples ranged from 3.94 to 5.87. All the samples were rated the same in terms of sweetness and general acceptability. Mango and watermelon juices were rated the best in terms of appearance and flavor while orange and pineapple were rated the best in taste. The total bacterial, total enterobacteriaceae and total yeast counts ranged from 2.2x101 to 3.6x101, 2.6x101 to 3.8x101 and 3.9x101 to 4.8x101 CFU/ml respectively. Feacal coliforms were not detected in any of the samples. The proximate composition of the samples ranged from 7.10 to 12.25, 0.34 and 2.02, 0.06 and 1.01, 80.55 and 86.10 and 0.18 and 0.88% for crude protein, crude fibre, ether extract, moisture and total ash contents respectively. The result shows that the mineral composition of the fruit juice samples for iron (Fe), magnesium (Mg), sodium (Na), potassium (K), and calcium (Ca) ranged from 0.44 to 2.24, 11.95 to 14.78, 0.78 to 26.41, 96.37 to 169.20 and 6.94 to 36.34 mg/100 ml respectively. The vitamin C content was between 10.20 and 40.24 mg/100 ml. In view of sensory, microbial, nutritional, minerals and vitamin C properties of the fruit juice samples, the fruit juice samples were deemed fit for consumption.
食品行业中食品欺诈的高发率直接威胁到消费者的健康。为了解决这个问题,本研究调查了一些新鲜果汁的维生素c、矿物质、微生物、营养和感官品质,以鼓励消费者在舒适的家中自己制作果汁。果汁样品的pH值在3.94 ~ 5.87之间。所有样品的甜度和接受度都是一样的。芒果汁和西瓜汁在外观和味道上被评为最佳,而橘子汁和菠萝汁在味道上被评为最佳。细菌总数、肠杆菌总数和酵母菌总数分别为2.2 × 101 ~ 3.6 × 101、2.6 × 101 ~ 3.8 × 101和3.9 × 101 ~ 4.8 × 101 CFU/ml。在所有样本中均未检测到粪便大肠菌。粗蛋白质、粗纤维、粗脂肪、水分和总灰分的近似组成分别为7.10 ~ 12.25、0.34 ~ 2.02、0.06 ~ 1.01、80.55 ~ 86.10和0.18 ~ 0.88%。结果表明,果汁样品的铁(Fe)、镁(Mg)、钠(Na)、钾(K)和钙(Ca)的矿物组成分别为0.44 ~ 2.24、11.95 ~ 14.78、0.78 ~ 26.41、96.37 ~ 169.20和6.94 ~ 36.34 Mg /100 ml。果汁样品的维生素C含量在10.20 ~ 40.24 mg/100 ml之间。从果汁样品的感官、微生物、营养、矿物质和维生素C的特性来看,认为果汁样品适合消费。
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引用次数: 2
Phytopathogenic/Mycotoxigenic Fungi Infecting Solanum lycopersicum Fruits (Market Storage Level) 番茄茄果实感染植物致病/产真菌真菌情况(市场储存水平)
Pub Date : 2022-10-23 DOI: 10.24018/ejbio.2022.3.5.400
A. Slama, F. Mezni, Faten Ayari, A. Khaldi
Tomato cultivation has a great worldwide interest. The quality of tomato fruit is of economic and health importance. Being rich in water and generally stored at 4 °C, tomatoes risk a rapid infection. This work was interested in isolating and studying pathogenic fungi in tomato fruit. isolations and subcultures were carried out on the PDA medium. Morphological characterization identified 5 fungi on Solanum lycopersicum fruits: Alternaria alternata; Penicilliumolsonii; Ulocladium atrum; Phytophtora nicotianae and Aspergillus fumigatus. This result highlighted and worried the presence of mycotxigenic fungi on fresh tomato.
番茄种植在全世界引起了极大的兴趣。番茄果实的品质对经济和健康具有重要意义。西红柿富含水分,通常储存在4°C的温度下,有迅速感染的风险。本研究对番茄果实病原真菌的分离与研究具有重要意义。在PDA培养基上进行分离和传代培养。番茄果实上5种真菌的形态鉴定:链格孢;莫氏青霉菌;闭锁Ulocladium;烟草黄曲霉和烟曲霉。这一结果突出并担忧了新鲜番茄上产霉菌的存在。
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引用次数: 0
The Genetic Diversity Analysis of Tunisian Male Date Palm Cultivars (Phoneix dactylifera L.) Revealed by Phenotypic and Molecular Markers 突尼斯椰枣雄性品种(Phoneix dactylifera L.)表型和分子标记遗传多样性分析
Pub Date : 2022-10-19 DOI: 10.24018/ejbio.2022.3.5.386
K. Karim, H. Hamza, Hedia Tiba, Mohamed Elsafy
Tunisian oases reveal an important genetic heritage of date palm cultivars, with various qualities of use. Since the beginning of the century, this heritage has evolved to a selective orientation based on the monoculture of "Deglet Nour," this orientation risks causing the loss of many cultivars. The male of the date palm is part of this heritage and so far remains marginalized. Although they are important for the date palm production cycle, it is in this context that lies our work to study the genetic diversity of a collection of male date palm pollinators from southern Tunisia. The morphological study of the 20 date palm pollinators using 45 IPGRI (International Plant Genetic Resources Institute) descriptors showed significant discrimination, with a similarity index ranging from 0.207 to 0.457, divided them into five similarity groups. The use of 7 ISSR (Inter Simple Sequences Repeat) primers resulted in 64 reproducible bands, of which 57 were 90% polymorphic, and statistical analysis showed a more or less significant genetic diversity with genetic distances 0.491 to 0.873. According to the Mentel test, a non-significant weak correlation (r = 0.015) was noted between the molecular and morphological data. However, the processing of molecular data by various methods generated very significant correlations. Indeed, the correlation between the SM (Simple matching) coefficient and the DICE coefficient showed an important correlation with r = 0.748, which confirms the discriminating power of the ISSR markers in studying the genetic diversity of date palm pollinators.
突尼斯的绿洲揭示了椰枣品种的重要遗传遗产,具有不同的使用品质。自本世纪初以来,这种遗产已经演变为基于“Deglet Nour”单一栽培的选择性取向,这种取向有可能导致许多品种的损失。枣椰树的雄性是这一遗产的一部分,但迄今仍被边缘化。尽管它们对枣椰树的生产周期很重要,但正是在这种背景下,我们的工作是研究来自突尼斯南部的雄性枣椰树传粉者的遗传多样性。利用国际植物遗传资源研究所(IPGRI)的45个描述符对20种枣椰树传粉昆虫进行形态学研究,发现它们具有显著的差异,相似指数在0.207 ~ 0.457之间,可分为5个相似类群。使用7条ISSR (Inter Simple Sequences Repeat)引物,得到64条可重复条带,其中57条多态性率为90%,遗传多样性较显著,遗传距离为0.491 ~ 0.873。根据Mentel检验,分子和形态数据之间存在不显著的弱相关(r = 0.015)。然而,通过各种方法处理分子数据产生了非常显著的相关性。SM (Simple matching)系数与DICE系数的相关性为r = 0.748,证实了ISSR标记在研究枣树传粉昆虫遗传多样性方面的鉴别能力。
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引用次数: 0
Purification and Partial Characterization of Tannase produced by Aspergillus niger SCSGAF0145 using Arachis hypogaea (Groundnut) Shell 花生壳制备黑曲霉SCSGAF0145单宁酶的纯化及部分特性研究
Pub Date : 2022-09-29 DOI: 10.24018/ejbio.2022.3.5.399
O. Olaleye, M. Omotayo, Rosemary Meekness Oni, Tawakalitu Jumoke Orisadare
Tannase have been widely secreted industrially by fungi using tannin rich agricultural waste as substrate. Aspergillus niger SCSGAF0145, was used for the secretion of tannase using groundnut shell as substrate under submerged fermentation. The crude tannase secreted was precipitated out using ammonium sulphate and purified on Sephadex G-150. Kinetic parameters of the secreted tannase were determined using tannic acid as substrate. The estimated biomass weight, tannin concentration, gallic acid concentration and tannase activity of the crude enzyme after fermentation was 81.00±0.08 mg, 1.31±0.01 mg/mL, 0.67±0.03 µg/mL and 6.04 U/mL respectively. The purification fold and enzyme yield after purification were 13.44 and 47.86%. The purified enzyme showed maximal activity at a pH of 5.5 and temperature of 35oC while producing Km and Vmax of 0.43 moles/L and Vmax is 21.55 U/mL respectively using tannic acid as its sole carbon source. In conclusion, Aspergillus niger SCSGAF0145 secreted tannase of high activity using groundnut shell as source of tannic acid which could be utilized for various industrial purposes.
单宁酶在工业上广泛应用于真菌利用富含单宁的农业废弃物作为底物分泌。以黑曲霉SCSGAF0145为底物,以花生壳为底物进行深层发酵分泌单宁酶。分泌的粗丹宁酶用硫酸铵沉淀出来,在Sephadex G-150上纯化。以单宁酸为底物,测定了分泌单宁酶的动力学参数。发酵后粗酶的生物量、单宁浓度、没食子酸浓度和单宁酶活性分别为81.00±0.08 mg、1.31±0.01 mg/mL、0.67±0.03µg/mL和6.04 U/mL。纯化倍数和纯化后的酶收率分别为13.44%和47.86%。纯化后的酶以单宁酸为唯一碳源,在pH为5.5、温度为35℃时活性最高,Km和Vmax分别为0.43 mol /L和21.55 U/mL。综上所述,黑曲霉SCSGAF0145以花生壳为单宁酸来源,分泌出高活性的单宁酶,可用于多种工业用途。
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引用次数: 0
Seasonal Parasitic Contamination of Vegetables Marketed in Bori Central Market, Khana Local Governemnt Area, Rivers State, Nigeria 尼日利亚里弗斯州卡纳地方政府区博里中央市场蔬菜的季节性寄生虫污染
Pub Date : 2022-08-31 DOI: 10.24018/ejbio.2022.3.4.381
L. Gboeloh
Seasonal parasitic contamination of vegetables marketed in Bori central market, Khana Local Government Area, Rivers State, Nigeria was investigated. A total of 80 vegetable samples, (40 samples each during the rainy and dry season respectively) were purchased from the Bori central market. The vegetable samples were examined in the laboratory for the presence of intestinal parasites using sedimentation techniques and microcopy. The results revealed that out of 80 vegetable samples (20 samples of each vegetable type and 40 samples each for rainy and dry seasons) examined, an overall prevalence of 41(51.3%) was recorded. Out of the 40 samples of vegetable each examined during the rainy and dry seasons, 23(57.5%) and18(45.0%) samples were positive for intestinal parasites during the rainy and dry seasons respectively. Across the two seasons, intestinal parasites belonging to four genera were identified. The genera were Ascaris, Giardia, Ancylostoma and Trichuris. A total of 23 intestinal parasites were identified during the rainy season (Ascaris 13/23(56.3%), Giardia 3/23(13.1%), Ancylostoma 4/23(17.4%) and Trichuris 3/23(13.1%) while a total of 18 parasites were extracted from the vegetables during the dry season (Ascaris 9/18(50%), Giardia 1/18(5.5%), Ancylostoma 3/18(16.7%) and Trichuris 5/18(27.8%). Carrot and tomatoes were the most statistically (P>0.05) contaminated vegetables in the rainy and dry seasons respectively. All species of parasites identified have a high relative abundance in the rainy season than in the dry season. Ascaris sp. (56.5%) was the most abundant species of parasite in the rainy season, followed by Ancylostoma sp. (10.0%), Giardia sp. (7.5%) and Trichuris sp. (7.5%). In the dry season, Ascaris sp. had the most relative abundance (50.0%), followed by Trichuris sp. (27.8%), Ancylostoma sp. (7.5%) and Giardia sp. (2.5%). There was a statistically significance difference (P<0.05) in the relative abundance of parasite species in the rainy and dry seasons. The high level of parasitic contamination of vegetables recorded in the study area is a public health concern and demands serious intervention especially in areas of health education on personal hygiene, sanitation and the danger of consumption of improperly washed vegetables, provision of sanitary facilities, mass deworming, open defecation and use of waste water for fertilizer.
对尼日利亚河流州卡纳地方政府区Bori中央市场销售的蔬菜的季节性寄生虫污染进行了调查。共从Bori中央市场购买了80个蔬菜样本(雨季和旱季各40个样本)。蔬菜样品在实验室使用沉淀技术和显微复制检查肠道寄生虫的存在。结果显示,在80个蔬菜样本中(每种蔬菜20个样本,雨季和旱季各40个样本),记录了41个(51.3%)的总体患病率。在雨季和旱季各检测的40份蔬菜样品中,分别有23份(57.5%)和18份(45.0%)在雨季和旱季检测出肠道寄生虫。在两个季节中,鉴定出肠道寄生虫属于4属。分别为蛔虫属、贾第虫属、钩虫属和滴虫属。雨季共检出肠道寄生虫23种,分别为蛔虫13/23(56.3%)、贾第鞭毛虫3/23(13.1%)、钩虫4/23(17.4%)和毛滴虫3/23(13.1%);旱季共检出18种,分别为蛔虫9/18(50%)、贾第鞭毛虫1/18(5.5%)、钩虫3/18(16.7%)和毛滴虫5/18(27.8%)。在雨季和旱季,胡萝卜和西红柿分别是污染最严重的蔬菜(P>0.05)。所鉴定的各种寄生虫在雨季的相对丰度都高于旱季。雨季寄生虫种类最多的是蛔虫(56.5%),其次是钩虫(10.0%)、贾第鞭毛虫(7.5%)和滴虫(7.5%)。在旱季,蛔虫相对丰度最高(50.0%),其次是滴虫(27.8%)、钩虫(7.5%)和贾第鞭毛虫(2.5%)。雨季和旱季寄生虫种类相对丰度差异有统计学意义(P<0.05)。研究地区记录的蔬菜寄生虫污染程度高是一个公共卫生问题,需要认真干预,特别是在个人卫生、环境卫生和食用未正确清洗蔬菜的危险的健康教育、提供卫生设施、大规模驱虫、露天排便和使用废水作肥料等领域。
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引用次数: 0
Species Richness, Morphological Features and Inventory of Wild Macrofungi found in Akwa Ibom State, Nigeria 尼日利亚Akwa Ibom州野生大型真菌的物种丰富度、形态特征和名录
Pub Date : 2022-08-31 DOI: 10.24018/ejbio.2022.3.4.390
O. Okon, J. Okon, U. Antia, S. M. Sam, Lovina I. Udoh, E. N. Usen, I. A. Ibanga
The macrofungi diversity in Akwa Ibom State, Nigeria has been inadequately sampled and never documented; this situation makes the status of macrofungi in the State unclear. It is from this reason that this study was necessitated. A total of 60 species of wild macrofungi belonging to 25 families we documented during the period of this study (April to July 2021).  Agaricaceae family recorded the highest number of species (12), followed by Polyporaceae (10), Psathyrellaceae (5), Marasmiaceae (4), Amanitaceae (3), Gomphaceae, Lycophyllaceae, Physalacriaceae, Hymenochaetaceae, Gamodermataceae andStrophariaceae recorded 2 species each. Pluteaceae, Stereaceae, Bondarzewiaceae, Schizophyllaceae, Entolomaceae, Cortinariaceae, Pleurotaceae, Dacrymycetaceae, Auriculariaceae, Tricholomataceae, Hygrophoraceae, Hydnangiaceae, Tubiferaceae and Lycoperdaceae recorded 1 species respectively. Out of the 60 macrofungi recorded, 36 species (60.00%) were non-edible, 13 species (21.67 %) were edible, 2 (3.33%) were choice edible and 2 (3.33%) edible but not recommended respectively. 1 species (1.67%) each were poisonous, psychoactive, edible while young, not recommended, non-poisonous but leathery, edible but shows allergic reactions in some individuals and unknown edibility status. Analysis on the growth substrate of the macrofungi species found revealed that; 32 species (53.33%) grew on dead wood, 25 species (41.67%) on soil, 2 species (3.33%) on living tree trunk and 1 species (1.67%) on decaying organic matter. The list and inventory provided by this study will give baseline information that will be needed in the assessment of changes that may occur in wild macrofungi diversity in Akwa Ibom State, Nigeria. The rich diversity of wild occurring macrofungi in Akwa Ibom State offers huge economic life for the local inhabitants in terms of nutriton, health and medicine as well as ecosystem stability at large. Inclusion of macrofungi biodiversity conservation in Akwa Ibom State and Nigerian forest management policies will be an appropriate step towards conservation of these wild macrofungi.
尼日利亚Akwa Ibom州的大型真菌多样性采样不足,从未记录在案;这种情况使得大型真菌在该州的地位不明确。正是由于这个原因,才有必要进行这项研究。在本研究期间(2021年4月至7月),我们共记录了属于25个科的60种野生大型真菌。琼脂科记录的物种数量最多(12种),其次是多孔菌科(10种)、Psathyrellaceae(5种)、Marasmiceae(4种)、Amanitaceae(3种)、Gomphaseae、Lycophyllaceae、Physalacraceae、Hymenochaetaceae、Gamodermataceae和Strophariaceae,各记录了2种。Pluteaceae、Stereaceae、Bondarzewiceae、Schizophyllaceae、Entolomaceae、Cortinariaceae、Pleurotaceae、Dacrymycetaceae、Auriculariaceae、Tricholomataceae、Hygrophorace、Hynangiaceae、Tubiferaceae和Lycoperdaceae分别记录了1种。在记录的60种大型真菌中,36种(60.00%)是不可食用的,13种(21.67%)是可食用的,2种(3.33%)是选择性可食用的,以及2种(3.3%)是可食用但不推荐的。1种(1.67%)有毒,具有精神活性,幼时可食用,不推荐,无毒但坚韧,可食用,但在某些个体中表现出过敏反应,食用状况未知。对所发现的大型真菌生长基质的分析表明:;32种(53.33%)生长在枯木上,25种(41.67%)生长在土壤上,2种(3.33%)生长在活树干上,1种(1.67%)生长在腐烂的有机物上。本研究提供的清单和清单将提供评估尼日利亚Akwa Ibom州野生大型真菌多样性可能发生的变化所需的基线信息。Akwa Ibom州野生大型真菌的丰富多样性为当地居民提供了巨大的经济生活,包括营养、健康和医药以及整个生态系统的稳定性。将大型真菌生物多样性保护纳入Akwa Ibom州和尼日利亚森林管理政策将是保护这些野生大型真菌的适当步骤。
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引用次数: 0
Floristic Composition and Vegetation Diversity Status of Khagrachari Sadar, Chattogram, Bangladesh 孟加拉国查特图姆Khagrachari Sadar的植物区系组成和植被多样性状况
Pub Date : 2022-08-22 DOI: 10.24018/ejbio.2022.3.4.376
D. Bhattacharjee, M. Rahman, M. Hossain, S. Uddin, S. Rudra
Floristic diversity of Khagrachari Sadar of Khagrachari district, within Chittagong Hill Tracts of Bangladesh, has been investigated. A territory's vegetation type and diversity provide insight into the overall resources, their usage structures, and conservation status that are crucial to developing conservation plans and regulations. This analysis helps to portray the overall scenario of a region's plant biomass/vegetation diversity exquisitely. This study has revealed the occurrence of 369 vascular plant species belonging to 144 genera under 97 families from the study area. Out of these 32 are pteridophytes, 2 are gymnosperms and the rest of 335 are angiosperms. Based on habit distribution, herbs are represented by 150 species followed by shrubs (48), trees (108), climbers (47) and epiphytes by 16 species. Dicotyledonous (Magnoliopsida) group was dominant and represented by 254 species belonging to 73 genera under 62 families, followed by monocotyledonous (Liliopsida) with 81 species under 52 genera and 17 families. Among the dicotyledonous plants, Rubiaceae was found to be the largest family with 24 species, whereas with 17 species Orchidaceae is the largest family in monocotyledonous. It appears that Forested areas are dominated by Melocanna baccifera, with an IVI of 8.00 and have the scanty appearance of two herbs (Spathoglottis plicata, Adiantum flabellaletum) and one tree species (Cycas pectinata). For effective conservation management and sustainable usage of the taxa, the status of occurrence has been determined where 304 species (82.23 percent) are considered as ‘Common’, 61 (16.53 percent) are considered ‘Least Concern’, 2 (0.54%) are considered ‘Vulnerable’ and 2 (0.54%), are considered ‘Critically Endangered’. Several diversity indices, such as Margelef’s richness, Shannon-Winer Index, Pielou’s Evenness, and Simpson’s Index values showed the substantial diversity status of the vascular plant in selected 4 sites. A considerable seasonal fluctuation was evident in the diversity indices at four different research locations where data reflected that the rainy season is more diverse than others.
对孟加拉国吉大港山区Khagrachari区的Khagrachari-Sadar的植物多样性进行了调查。一个地区的植被类型和多样性可以深入了解整体资源、其使用结构和保护状况,这对制定保护计划和法规至关重要。该分析有助于精细地描绘一个地区植物生物量/植被多样性的总体情况。本研究揭示了研究区97科144属369种维管束植物的分布。其中蕨类植物32种,裸子植物2种,被子植物335种。根据习性分布,草本植物有150种,其次是灌木(48种)、树木(108种)、攀缘植物(47种)和附生植物(16种)。双子叶植物群占优势,有62科73属254种,其次是单子叶植物群,有17科52属81种。在双子叶植物中,茜草科是最大的科,有24种,而兰科是单子叶植物中最大的科。看来,森林地区主要是浆果甜瓜,IVI为8.00,只有两种草本植物(褶皱Spathoglottis plicata、扇形铁线蕨Adiantum flabellaletum)和一种树种(果壳苏铁)。为了有效的保护管理和分类群的可持续利用,已经确定了304个物种(82.23%)被认为是“常见”物种,61个物种(16.53%)被认为“最不受关注”物种,2个物种(0.54%)被认为为“易危”物种,还有2个物种被认为“极度濒危”物种。Margelef丰富度、Shannon Winer指数、Pielou均匀度和Simpson指数等多样性指数显示了所选4个地点维管植物的多样性状况。四个不同研究地点的多样性指数存在明显的季节性波动,数据表明雨季比其他地区更具多样性。
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European journal of biology and biotechnology
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