scholarly journals Connecting plant species and natural products from the Canadian prairie ecological zone to biomedical knowledge

Botany ◽  
2021 ◽  
Author(s):  
Layla Molina ◽  
Haley K. Allard ◽  
Sophie M. Kernéis ◽  
Roy Golsteyn
Keyword(s):  
Natural Products ◽  
Plant Species ◽  
Ecological Interactions ◽  
Ecological Zone ◽  
Biomedical Knowledge ◽  
Canadian Prairie ◽  
Ecological Zones ◽  
Local Literature ◽  
Scientific Arguments ◽  
Asteraceae Family

Natural products from plants in Canadian ecological zones are understudied. There are, however, sound scientific arguments to justify investigation of natural products from plant species found within these zones. We review a broad range of scientific and local literature describing the features of the Canadian prairie ecological zone and the Asteraceae taxonomical family. Species from Asteraceae are well represented in the prairie ecological system, although very few have been investigated for natural products with bio-medical properties. Data from a range of sources that address ecological interactions, abiotic features, and Traditional Knowledge provide a foundation for future scientific studies of plant natural products found within Canadian borders. We draw from discoveries of the Asteraceae family and one of its major classes of secondary metabolites, sesquiterpenes, to stimulate research of Asteraceae species in Canada.

scholarly journals Chemical Diversity of Plant Cyanogenic Glycosides: An Overview of Reported Natural Products

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 719
Author(s):  
Meri Yulvianti ◽  
Christian Zidorn
Keyword(s):  
Natural Products ◽  
Plant Species ◽  
Chemical Diversity ◽  
Cyanogenic Glycosides ◽  
Sugar Moiety ◽  
Plant Natural Products ◽  
Naturally Occurring

Cyanogenic glycosides are an important and widespread class of plant natural products, which are however structurally less diverse than many other classes of natural products. So far, 112 naturally occurring cyanogenic glycosides have been described in the phytochemical literature. Currently, these unique compounds have been reported from more than 2500 plant species. Natural cyanogenic glycosides show variations regarding both the aglycone and the sugar part of the molecules. The predominant sugar moiety is glucose but many substitution patterns of this glucose moiety exist in nature. Regarding the aglycone moiety, four different basic classes can be distinguished, aliphatic, cyclic, aromatic, and heterocyclic aglycones. Our overview covers all cyanogenic glycosides isolated from plants and includes 33 compounds with a non-cyclic aglycone, 20 cyclopentane derivatives, 55 natural products with an aromatic aglycone, and four dihydropyridone derivatives. In the following sections, we will provide an overview about the chemical diversity known so far and mention the first source from which the respective compounds had been isolated. This review will serve as a first reference for researchers trying to find new cyanogenic glycosides and highlights some gaps in the knowledge about the exact structures of already described compounds.

scholarly journals The distribution of woody species in relation to climate and fire in Yosemite National Park, California, USA

Fire Ecology ◽  
2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Jan W. van Wagtendonk ◽  
Peggy E. Moore ◽  
Julie L. Yee ◽  
James A. Lutz
Keyword(s):  
Plant Species ◽  
Sierra Nevada ◽  
Species Distribution ◽  
National Park ◽  
Woody Plant ◽  
Fire Regime ◽  
Yosemite National Park ◽  
Distribution Models ◽  
Ecological Zones ◽  
Woody Plant Species

Abstract Background The effects of climate on plant species ranges are well appreciated, but the effects of other processes, such as fire, on plant species distribution are less well understood. We used a dataset of 561 plots 0.1 ha in size located throughout Yosemite National Park, in the Sierra Nevada of California, USA, to determine the joint effects of fire and climate on woody plant species. We analyzed the effect of climate (annual actual evapotranspiration [AET], climatic water deficit [Deficit]) and fire characteristics (occurrence [BURN] for all plots, fire return interval departure [FRID] for unburned plots, and severity of the most severe fire [dNBR]) on the distribution of woody plant species. Results Of 43 species that were present on at least two plots, 38 species occurred on five or more plots. Of those 38 species, models for the distribution of 13 species (34%) were significantly improved by including the variable for fire occurrence (BURN). Models for the distribution of 10 species (26%) were significantly improved by including FRID, and two species (5%) were improved by including dNBR. Species for which distribution models were improved by inclusion of fire variables included some of the most areally extensive woody plants. Species and ecological zones were aligned along an AET-Deficit gradient from cool and moist to hot and dry conditions. Conclusions In fire-frequent ecosystems, such as those in most of western North America, species distribution models were improved by including variables related to fire. Models for changing species distributions would also be improved by considering potential changes to the fire regime.

scholarly journals NATURAL PLANT SPECIES INVENTORY OF THE IMPORTANT PLANT AREAS IN ARABIAN PENINSULA: BANI OMAR, TAIZ GOVERNORATE, REPUBLIC OF YEMEN

2020 ◽  
Vol 1 (3) ◽  
pp. 135-150
Author(s):  
Abdul Wali Ahmed Al-Khulaidi ◽  
Abdul Habib Al-Qadasi ◽  
Othman Saad Saeed Al-Hawshabi
Keyword(s):  
Plant Species ◽  
Arabian Peninsula ◽  
Annual Rainfall ◽  
Vegetation Types ◽  
Salvadora Persica ◽  
Natural Plant ◽  
Vegetation Communities ◽  
Ecological Zones ◽  
Average Annual Rainfall ◽  
Semi Arid

The study area is located on the South western mountains of Republic of Yemen, It is characterized by arid and semi-arid climate with high temperatures and low average annual rainfall. The aims of this study are to explore the natural plant species of one of the Important Plant areas of Arabian Peninsula and to evaluate the chance to be a protected area. 61 sample sites covering the whole ecological zones haven been conducted. 135 plant species are found, in which 3 plant species were endemic, 7 near endemic, 29 regional endemic. The study revealed also three vegetation communities with 7 vegetation associations (vegetation types). Vegetation dominated by Ficus cordata, F. sycomorus, Salvadora persica Tamarix aphylla and Ziziphus spina-christi were found on main wadis. Vegetation communities dominated by Acacia asak, Anisotes trisulcus, Jatropha variegate and Zygocarpum yemenense were found on rocky slopes and stony plateau.

Biosynthesis of Diverse Class Flavonoids via Shikimate and Phenylpropanoid Pathway

2021 ◽  
Author(s):  
Mohd Rehan
Keyword(s):  
Natural Products ◽  
Plant Species ◽  
Condensed Tannin ◽  
Shikimate Pathway ◽  
Phenylpropanoid Pathway ◽  
Human Diseases ◽  
Root Bark ◽  
Important Class ◽  
Higher Plant ◽  
Phosphoenol Pyruvate

Flavonoids are natural products, which are useful in the protection of various types of human diseases. Several bioactive flavonoids as chalcones, flavonols, flavanol, flavones, flavanone, flavan, isoflavonoids, and proanthocyanidin, are found in parts as leaves, root, bark, stem, flowers, weed, fruits of plant species. Flavonoids are synthesized in higher plant species via the shikimate pathway, phenylpropanoid and polyketide pathway. The chalcones and flavanones are central intermediates of the pathway, which give several diverse classes of flavonoids. Central intermediates pathway (chalcones and flavanones pathway) depends on plants species and group of enzymes such as hydroxylases, reductases and isomerases to give different classes of flavonoids skeleton. The anthocyanins, isoflavonoids and condensed tannin (proanthocyanidins) are an important class of flavonoids, which synthesized by flavanones. Mostly, biosynthesis of flavonoids start from phenylpropanoid pathway. The phenylpropanoid pathway starts from shikimate pathway. The shikimate pathway starts from phosphoenol pyruvate and erythrose 4-phosphate.

Application of Fuzzy Logic for Mapping the Agro-Ecological Zones

2015 ◽  
pp. 351-377 ◽  
Author(s):  
Bistok Hasiholan Simanjuntak ◽  
Sri Yulianto Joko Prasetyo ◽  
Kristoko Dwi Hartomo ◽  
Hindriyanto Dwi Purnomo
Keyword(s):  
Fuzzy Logic ◽  
Food Security ◽  
Agricultural Land ◽  
Farming System ◽  
Decision Makers ◽  
Land Evaluation ◽  
Ecological Zone ◽  
Ecological Zones ◽  
The Ideal

The mapping of agro-ecological zone, which is integrated with the suitability of land evaluation, will determine the ideal farming system. The ideal farming system including sustainable land management will support the food security scenario of a region. In this chapter, the implementation of fuzzy logic for mapping the agro-ecological zone is discussed. The agro-ecological zone in Boyolali is used as case study in which the mapping considers its physiographic characteristics and climate. Two physiographic characteristics are involved: slope of the land and elevation. Rainfall is used as representative of climate. The experiment results reveal that simple membership function with the Mamdani inferences system could help decision makers to classify the agricultural land in Boyolali.

The Potential of Biologically Active Brazilian Plant Species as a Strategy to Search for Molecular Models for Mosquito Control

Planta Medica ◽  
2020 ◽  
Author(s):  
Marilia Valli ◽  
Letícia Cristina Vieira Atanázio ◽  
Gustavo Claro Monteiro ◽  
Roberta Ramos Coelho ◽  
Daniel Pecoraro Demarque ◽  
...  
Keyword(s):  
Natural Products ◽  
Drug Discovery ◽  
Vector Control ◽  
Plant Species ◽  
Mosquito Control ◽  
Biologically Active ◽  
Molecular Models ◽  
Public Health Importance ◽  
Active Compounds ◽  
Brazilian Biodiversity

AbstractNatural products are a valuable source of biologically active compounds and continue to play an important role in modern drug discovery due to their great structural diversity and unique biological properties. Brazilian biodiversity is one of the most extensive in the world and could be an effective source of new chemical entities for drug discovery. Mosquitoes are vectors for the transmission of dengue, Zika, chikungunya, yellow fever, and many other diseases of public health importance. These diseases have a major impact on tropical and subtropical countries, and their incidence has increased dramatically in recent decades, reaching billions of people at risk worldwide. The prevention of these diseases is mainly through vector control, which is becoming more difficult because of the emergence of resistant mosquito populations to the chemical insecticides. Strategies to provide efficient and safe vector control are needed, and secondary metabolites from plant species from the Brazilian biodiversity, especially Cerrado, that are biologically active for mosquito control are herein highlighted. Also, this is a literature revision of targets as insights to promote advances in the task of developing active compounds for vector control. In view of the expansion and occurrence of arboviruses diseases worldwide, scientific reviews on bioactive natural products are important to provide molecular models for vector control and contribute with effective measures to reduce their incidence.

scholarly journals Antinociceptive, Anti-Inflammatory, and Antipyretic Activity of Mangrove Plants: A Mini Review

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
J. A. Shilpi ◽  
M. E. Islam ◽  
M. Billah ◽  
K. M. D. Islam ◽  
F. Sabrin ◽  
...  
Keyword(s):  
Natural Products ◽  
Biological Activity ◽  
Plant Species ◽  
Active Compound ◽  
Medicinal Uses ◽  
Antipyretic Activity ◽  
Mangrove Plants ◽  
The World ◽  
Anti Inflammatory ◽  
The Web

Mangrove plants are specialised plants that grow in the tidal coasts of tropic and subtropic regions of the world. Their unique ecology and traditional medicinal uses of mangrove plants have attracted the attention of researchers over the years, and as a result, reports on biological activity of mangrove plants have increased significantly in recent years. This review has been set out to compile and appraise the results on antinociceptive, anti-inflammatory, and antipyretic activity of mangrove plants. While the Web of Knowledge, Google Scholar, and PubMed were the starting points to gather information, other pieces of relevant published literature were also adequately explored for this purpose. A total of 29 reports on 17 plant species have been found to report such activities. While 19 reports were on the biological activity of the crude extracts, 10 reports identified the active compound(s) of various chemical classes of natural products including terpenes, steroids, and flavonoids. This review finds that antinociceptive, anti-inflammatory, and antipyretic activity appears to be widespread in mangrove plants.

Specialized ecological interactions and plant species rarity: The role of pollinators and mycorrhizal fungi across multiple spatial scales

2014 ◽  
Vol 169 ◽  
pp. 285-295 ◽  
Author(s):  
Ryan D. Phillips ◽  
Rod Peakall ◽  
Michael F. Hutchinson ◽  
Celeste C. Linde ◽  
Tingbao Xu ◽  
...  
Keyword(s):  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Spatial Scales ◽  
Ecological Interactions ◽  
Multiple Spatial Scales ◽  
Species Rarity
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