scholarly journals Fungi colonizing dead leaves of herbs

2013 ◽  
Vol 66 (1) ◽  
pp. 61-64
Author(s):  
Maria Kowalik
Keyword(s):  
Medicinal Plant ◽  
Botanical Garden ◽  
Ocimum Basilicum ◽  
Dead Leaf ◽  
Plant Leaves ◽  
Origanum Vulgare ◽  
Lemon Balm ◽  
Sordaria Fimicola ◽  
Leaf Tissues ◽  
Herb Species

The material was collected from the Botanical Garden and the Collegium Medicum Medicinal Plant Garden of the Jagiellonian University in Krakow. The investigated species were: lemon balm (<em>Mellisa officinalis </em>L.), common lavender (<em>Lavendula angustifolia </em>Mill.), horsemint (<em>Mentha longifolia </em>L.), sage (<em>Salvia officinalis </em>L.), sweet basil (<em>Ocimum basilicum </em>L.), and wild marjoram (<em>Origanum vulgare </em>L.). The aim of the investigation was to identify fungi causing the death of leaf tissues of herbs from the mint family Lamiaceae. In mycological investigations, 180 fragments of each plant leaves (1,080 dead leaf fragments in total) were placed in a 2% PDA medium. Over 970 colonies of fungi belonging to 48 species were isolated from the dead leaf tissues of the six herb species. <em>Alternaria alternata </em>(toxin-producing), <em>Epicoccum nigrum </em>and <em>Sordaria fimicola </em>were the most frequently isolated. The largest numbers of colonies and species of fungi were isolated from horsemint, while the lowest numbers were from wild marjoram leaves. It was shown that the death of leaves of selected herb species from the Lamiaceae family was caused by various fungi. The results of the mycological analysis confirmed the diversity of species colonizing the leaves of the herbs.

scholarly journals The Classification of Medicinal Plant Leaves Based on Multispectral and Texture Feature Using Machine Learning Approach

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 263
Author(s):  
Samreen Naeem ◽  
Aqib Ali ◽  
Christophe Chesneau ◽  
Muhammad H. Tahir ◽  
Farrukh Jamal ◽  
...  
Keyword(s):  
Machine Learning ◽  
Medicinal Plant ◽  
Texture Feature ◽  
Stevia Rebaudiana ◽  
Ocimum Sanctum ◽  
Multi Layer Perceptron ◽  
Plant Leaves ◽  
Chi Square ◽  
Lemon Balm

This study proposes the machine learning based classification of medical plant leaves. The total six varieties of medicinal plant leaves-based dataset are collected from the Department of Agriculture, The Islamia University of Bahawalpur, Pakistan. These plants are commonly named in English as (herbal) Tulsi, Peppermint, Bael, Lemon balm, Catnip, and Stevia and scientifically named in Latin as Ocimum sanctum, Mentha balsamea, Aegle marmelos, Melissa officinalis, Nepeta cataria, and Stevia rebaudiana, respectively. The multispectral and digital image dataset are collected via a computer vision laboratory setup. For the preprocessing step, we crop the region of the leaf and transform it into a gray level format. Secondly, we perform a seed intensity-based edge/line detection utilizing Sobel filter and draw five regions of observations. A total of 65 fused features dataset is extracted, being a combination of texture, run-length matrix, and multi-spectral features. For the feature optimization process, we employ a chi-square feature selection approach and select 14 optimized features. Finally, five machine learning classifiers named as a multi-layer perceptron, logit-boost, bagging, random forest, and simple logistic are deployed on an optimized medicinal plant leaves dataset, and it is observed that the multi-layer perceptron classifier shows a relatively promising accuracy of 99.01% as compared to the competition. The distinct classification accuracy by the multi-layer perceptron classifier on six medicinal plant leaves are 99.10% for Tulsi, 99.80% for Peppermint, 98.40% for Bael, 99.90% for Lemon balm, 98.40% for Catnip, and 99.20% for Stevia.

scholarly journals Antimicrobial Efficiency of Essential Oils from Traditional Medicinal Plants of Asir Region, Saudi Arabia over Drug Resistant Isolates

2018 ◽  
Author(s):  
Ismail M. Helal ◽  
Ashraf El-Bessoumy ◽  
Erwah Al-Bataineh ◽  
Martin R.P. Joseph ◽  
Parassena Rajagopalan ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Essential Oils ◽  
Streptococcus Pyogenes ◽  
Biological Activities ◽  
Ocimum Basilicum ◽  
Antimicrobial Efficacy ◽  
Chemical Compositions ◽  
Drug Resistant ◽  
Origanum Vulgare ◽  
Asir Region

Antimicrobial resistance (AMR) is a recurring global problem, which constantly demands new antimicrobial compounds to challenge the resistance. It is well known that essential oils (EOs) have been known for biological activities including antimicrobial properties. In this study, EOs from seven aromatic plants of Asir region of southwestern Saudi Arabia were tested for their antimicrobial efficacy against four drug resistant pathogenic bacterial isolates (Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli and Streptococcus typhimurium) and one fungal isolate (Candida albicans). Chemical compositions of EOs were determined by Gas chromatography-Mass Spectrometry (GC-MS). The results revealed that EOs from Mentha cervina, Ocimum basilicum and Origanum vulgare proved most active against all isolates with inhibitory zone range between17 to 45 mm.&nbsp; The lowest minimum inhibitory concentration (MIC) of 0.025mg/ml was observed for Staph. aureus and Streptococcus pyogenes with EO of Origanum vulgare. All the three EOs showed significant anti candida activity. Together form the results the EOs from Mentha cervina, Ocimum basilicum and Origanum vulgare demonstrated a significant antimicrobial efficacy against drug resistant microorganisms.

scholarly journals Organic and Conventional Herbs Quality Reflected by Their Antioxidant Compounds Concentration

2020 ◽  
Vol 10 (10) ◽  
pp. 3468 ◽  
Author(s):  
Ewelina Hallmann ◽  
Piotr Sabała
Keyword(s):  
Bioactive Compounds ◽  
Phenolic Acids ◽  
Beta Carotene ◽  
Ocimum Basilicum ◽  
Antioxidant Compounds ◽  
Origanum Vulgare ◽  
Total Polyphenols ◽  
Conventional Production ◽  
Origanum Majorana ◽  
The Individual

The aim of this work was to determine the bioactive compounds concentration in herbs from organic and conventional production. In 2017 and 2018, herbs of four species, including basil (Ocimum basilicum L.), bear’s garlic (Allium ursinum L.), marjoram (Origanum majorana L.), and oregano (Origanum vulgare L.), were examined. The concentrations of polyphenols, phenolic acids, flavonoids, carotenoids, and chlorophylls were measured. Next, separation and identification of the individual bioactive compounds were completed. The obtained results show that organic herbs contained significantly higher concentrations of total polyphenols, flavonoids, and phenolic acids compared to conventional herbs in both investigation years. On the other hand, conventional herbs contained significantly higher concentrations of chlorophylls and carotenoids, including beta-carotene.

scholarly journals Antimicrobial Efficiency of Essential Oils from Traditional Medicinal Plants of Asir Region, Saudi Arabia, over Drug Resistant Isolates

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Ismail M. Helal ◽  
Ashraf El-Bessoumy ◽  
Erwa Al-Bataineh ◽  
Martin R. P. Joseph ◽  
Prasanna Rajagopalan ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Essential Oils ◽  
Streptococcus Pyogenes ◽  
Biological Activities ◽  
Ocimum Basilicum ◽  
Antimicrobial Efficacy ◽  
Chemical Compositions ◽  
Drug Resistant ◽  
Origanum Vulgare ◽  
Asir Region

Antimicrobial resistance (AMR) is a recurring global problem, which constantly demands new antimicrobial compounds to challenge the resistance. It is well known that essential oils (EOs) have been known for biological activities including antimicrobial properties. In this study, EOs from seven aromatic plants of Asir region of southwestern Saudi Arabia were tested for their antimicrobial efficacy against four drug resistant pathogenic bacterial isolates (Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, and Streptococcus typhimurium) and one fungal isolate (Candida albicans). Chemical compositions of EOs were determined by gas chromatography-mass spectrometry (GC-MS). The results revealed that EOs from Mentha cervina, Ocimum basilicum, and Origanum vulgare proved most active against all isolates with inhibitory zone range between 17 and 45 mm. The lowest minimum inhibitory concentration (MIC) of 0.025mg/ml was observed for Staph. aureus and Streptococcus pyogenes with EO of Origanum vulgare. All the three EOs showed significant anticandida activity. The results related to EOs from Mentha cervina, Ocimum basilicum, and Origanum vulgare demonstrated significant antimicrobial efficacy against drug resistant microorganisms.

External Particle-Induced X-Ray Emission Analysis of Medicinal Plant Leaves and Fly Ash

2014 ◽  
Vol 20 (3) ◽  
pp. 778-780
Author(s):  
Santosh S. Teerthe ◽  
Mohanraj Pattar ◽  
Basavaraj Kerur ◽  
Nihar R. Mahapatra ◽  
Seba Das ◽  
...  
Keyword(s):  
Fly Ash ◽  
Medicinal Plant ◽  
Plant Leaves ◽  
External Particle ◽  
Emission Analysis ◽  
X Ray

PARTICLE INDUCED X-RAY EMISSION STUDIES OF ANTI-DIABETIC MEDICINAL PLANTS

2006 ◽  
Vol 16 (01n02) ◽  
pp. 47-54 ◽  
Author(s):  
D. K. RAY ◽  
P. K. NAYAK ◽  
S. R. PANDA ◽  
T. R. RAUTRAY ◽  
V. VIJAYAN ◽  
...  
Keyword(s):  
Trace Elements ◽  
Medicinal Plants ◽  
Medicinal Plant ◽  
Reference Materials ◽  
Maximum Amount ◽  
Plant Leaves ◽  
X Ray ◽  
Emission Studies

Selected number of anti-diabetic medicinal plant leaves has been characterized by accelerator based particle-induced X-ray emission (PIXE) technique. Validity of the technique was assured by analyzing certified plant reference materials (CRMs). A large number of trace elements like Ti , V , Cr , Mn , Fe , Co , Ni , Cu , Zn , Rb , Sr and Pb are found to be present in these studied leaf samples with variable proportions. The concentrations of elements like K and Ca are quantified in percentage level whereas other elements are found to be in parts per million levels. Among the studied samples, the leaves of Methi are found to be containing maximum amount of trace elements.

scholarly journals IDENTIFICATION OF MEDICINE PLANTS IN THE SRIWIJAYA BOTANICAL GARDEN, BAKUNG VILLAGE, INDRALAYA UTARA DISTRICT, OGAN ILIR REGENCY, SOUTH SUMATRA PROVINCE

2021 ◽  
Vol 10 (1) ◽  
pp. 24
Author(s):  
Sasua Hustati Syahroni ◽  
Asvic Helida ◽  
Amer Jaya
Keyword(s):  
Medicinal Plants ◽  
Medicinal Plant ◽  
Diversity Index ◽  
Sampling Technique ◽  
Botanical Garden ◽  
Species Diversity Index ◽  
Conservation Area ◽  
Melastoma Malabathricum ◽  
A Value ◽  
Importance Index

This study aims to determine and identify the composition and type of structure medicinal plants in the Sriwijaya botanical garden through analysis of medicinal plant vegetation by using a species diversity index. The research method used was a survey with a sampling technique used was a sampling method or intentionally from the area of the Sriwijaya Botanical Garden conservation area. Using the formula for sampling intensity [IS] of 2% and a total area of 100 Ha, the number of sample plots obtained is 50. This study identified 43 families and 76 species of medicinal plants. The highest importance index (INP) of the lower plants in the lower plantswas Senduduk (Melastoma malabathricum) a value 29,797%, while the lowest INP is Cataract (Laurentia longifora), Curry Leaf (Murraya koenigii), Kumis Kucing (Orthosiphon aristatus) a 0,724%. While in INP, the highest mastery of medicinal plants at sapling level is Jelutung (Dyera costulata) a value 40.741%, while the lowest INP a butterfly (Bauhinia porpurea) with 4.204%. The diversity indexes of medicinal plants at the understorey and sapling levels were found to be 2.00 and 1.03, in both, indicating that understorey and sapling diversity was moderate and the community state was very stable. While the diversity index of medicinal plants at the seedling level was 0.94, indicating that medicinal plant diversity at the seedling stage is poor and the community state is quite poor.

scholarly journals Study on Morphological and Microscopic Characteristics of Abelmoschus sagittifolius (Kurz) Merr. in Vietnam

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Pham Thanh Huyen ◽  
Nguyen Quynh Nga ◽  
Pham Thi Ngoc ◽  
Lai Viet Hung ◽  
Phan Van Truong ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Medicinal Plant ◽  
Publishing House ◽  
Morphological Characteristics ◽  
Plant Morphology ◽  
Botanical Garden ◽  
Gastric Ulcers ◽  
Biological Resources ◽  
Natural Product Research ◽  
Medicinal Powder

Sam bo chinh (Abelmoschus sagittifolius (Kurz) Merr.) is a precious medicinal plant that has been exploited and planted in Vietnam for a long time. However, the morphological characteristics of this plant is easy to confuse with other species of the same genus. In addition, the microscopic characteristics and medicinal powder composition of this medicinal plant have not been comprehensively described. The present investigation was aimed to determine the morphological and microscopic characters of Sam bo chinh using comparative morphology, anatomical research and medicinal powder analysis. The complete description of morphological and microscopic characteristics reported in this study will serve as valuable data for the conservation and development of this species in Vietnam. Keywords Morphology, microscopic characteristics, medicinal plant, Abelmoschus sagittifolius. References [1] The International Plant Names Index and World Checklist of Selected Plant Families 2021, http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:558042-1, (accessed on: 7th May 2021).[2] P. H. Ho, Medicinal Plants in Vietnam, Tre Publishing House, Ho Chi Minh, 2006, pp. 112 (in Vietnamese).[3] D. H. Bich et al., Medicinal Plants and Medicinal Animals in Vietnam, Science and Technics Publishing House, Hanoi, 2006, pp. 690-693 (in Vietnamese).[4] Ministry of Health, Vietnamese Pharmacopoeia V, Medical Publishing House, Hanoi, 2018, pp. 1310-1311 (in Vietnamese).[5] G. L. D. Chen, Y. Y. Liu, G. X. Ma, W. Zheng, X. B. Sun, X. D. Xu, A New Cadinane Sesquiterpenoid Glucoside with Cytotoxicity from Abelmoschus sagittifolius, Natural Product Research, Vol. 33, 2019, pp. 1699-1704, https://doi.org/10.1080/14786419.2018.1431635.[6] D. T. Vui, Study Chemical Composition and Pharmacological Effects towards The Treatment Gastric Ulcers of The Roots of Abelmoschus sagittifolius (Kurz) Merr. Malvaceae, Doctoral Thesis, National Institute of Medicinal Materials, Hanoi, 2007 (in Vietnamese).[7] D. T. Xuyen, Some New Information on The Genus Abelmoschus Medic. in Vietnam, Scientific Report on Ecology and Biological Resources, The First National Conference, Institute of Ecology and Biological Resources, Hanoi, 2005 (in Vietnamese).[8] N. N. Thin, Methods of Plant Research, Vietnam National University Press, Hanoi, 2007 (in Vietnamese).[9] N. Ba, Plant Morphology, Vietnam Education Publishing House, Hanoi, 2006 (in Vietnamese).[10] N. V. Than, Testing Medicinal Herbs by Microscopic Method, Science and Technics Publishing House, Hanoi, 2003 (in Vietnamese).[11] P. H. Raven, H. D. W. Zhengyi, Flora of China, Science Press (Beijing) & Missouri Botanical Garden (St. Louis), China and USA, 2007, pp. 283-285.[12] Abelmoschus moschatus (L.) Medik, http://uphcm.edu.vn/caythuoc/index.php?q=book/export/html/298, (accessed on: May 25th, 2020) (in Vietnamese)

scholarly journals The Diversity, Distribution and Conservation of Bali’s Medinilla in Eka Karya Bali Botanical Garden

Jurnal Wasian ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 103-113
Author(s):  
Ni Putu Asih ◽  
◽  
I Gusti Sudirga ◽  
I Gede Tirta
Keyword(s):  
Data Collection ◽  
Medicinal Plant ◽  
Tropical Forest ◽  
Research Method ◽  
Botanical Garden ◽  
Literature Study ◽  
Botanical Gardens ◽  
Distribution Record ◽  
New Distribution

Medinilla is a tropical forest plant that has potential as an ornamental and medicinal plant. The diversity of Medinilla in Bali is poorly studied. This study aims to determine the diversity, distribution and conservation activities of Bali’s Medinilla at the Eka Karya Bali Botanical Garden. The research method used are literature study, search for data collection and exploration, amd herbarium observations. Based on this research, it is known that there are six species of Medinilla in Bali such as Medinilla crassifolia (Reinw.ex Blume) Blume, Medinilla alpestris Blume, Medinilla laurifolia (Blume) Blume, Medinilla radicans (Blume) Blume, Medinilla speciosa (Reinw.ex Blume) Blume and Medinilla quadrifolia (BI.) Bakh. F. M. quadrifolia is a new distribution record for Bali. All species were discovered in the districts of Buleleng, Bangli, Gianyar, Jembrana, Karangasem and Tabanan districts. Only four species have been conserved in the Bali Botanical Gardens, according to data from the Eka Karya Bali Botanical Gardens' collection, therefore exploration and collection activities are critical. Conservation activities carried out at Eka Karya Bali Botanical Garden are collecting and data collection, maintaining and propagating species of Medinilla.

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