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8,072 Results Found

  • Review
  • Open Access
48 Citations
7,138 Views
67 Pages

Marine-Derived Macrolides 1990–2020: An Overview of Chemical and Biological Diversity

  • Hairong Zhang,
  • Jiabin Zou,
  • Xiaoxue Yan,
  • Junlong Chen,
  • Xiujiao Cao,
  • Jialing Wu,
  • Yinghui Liu and
  • Tingting Wang

25 March 2021

Macrolides are a significant family of natural products with diverse structures and bioactivities. Considerable effort has been made in recent decades to isolate additional macrolides and characterize their chemical and bioactive properties. The majo...

  • Review
  • Open Access
2,525 Views
22 Pages

3 January 2024

The N-phenylquinoneimine scaffold is a versatile synthetic platform that has gained significant attention in the field of drug discovery due to its structural diversity and capacity to interact with biologically relevant targets. This review explores...

  • Review
  • Open Access
57 Citations
13,047 Views
85 Pages

11 July 2014

The genus Silene (family Caryophyllaceae) comprises more than 700 species, which are widely distributed in temperate zones of the Northern Hemisphere, but are also present in Africa and have been introduced in other continents. Silene produces a high...

  • Review
  • Open Access
5 Citations
3,607 Views
52 Pages

Secondary Metabolites from the Mangrove Ecosystem-Derived Fungi Penicillium spp.: Chemical Diversity and Biological Activity

  • Guojun Zhou,
  • Jin Cai,
  • Bin Wang,
  • Wenjiao Diao,
  • Yu Zhong,
  • Shaodan Pan,
  • Weijia Xiong,
  • Guolei Huang and
  • Caijuan Zheng

26 December 2024

Mangrove ecosystems have attracted widespread attention because of their high salinity, muddy or sandy soil, and low pH, as well as being partly anoxic and periodically soaked by tides. Mangrove plants, soil, or sediment-derived fungi, especially the...

  • Review
  • Open Access
9 Citations
5,222 Views
39 Pages

22 September 2023

Naturally occurring benzophenones represent a relatively small group of plant metabolites with narrow distribution, mainly in members of Clusiaceae, Gentianaceae, Hypericaceae, Polygalaceae, Myrtaceae, etc.; however, there were reports of several com...

  • Article
  • Open Access
71 Citations
9,994 Views
17 Pages

6 March 2014

Marine environments are a rich source of Actinobacteria and have the potential to produce a wide variety of biologically active secondary metabolites. In this study, we used four selective isolation media to culture Actinobacteria from the sediments...

  • Article
  • Open Access
1 Citations
643 Views
8 Pages

16 May 2025

Carbon isotope of the kerogen (δ13Corg), steranes/hopanes (S/H), and C28/C29 sterane ratios in the source rocks from the SARK section at the Early Cambrian Yurtus Formation in the Fortunian Stage in the Tarim Basin of Northwest China reveal a p...

  • Review
  • Open Access
4 Citations
2,741 Views
18 Pages

3 April 2024

The UK government’s 25 Year Plan to Improve the Environment (25YEP), published in 2018, together with annual progress reports and subsequent periodic revisions, represent the most comprehensive and forward-looking single body of environmental l...

  • Article
  • Open Access
4 Citations
3,743 Views
29 Pages

Aquatic Biological Diversity Responses to Flood Disturbance and Forest Management in Small, Forested Watersheds

  • Robert J. Danehy,
  • Robert E. Bilby,
  • Tiffany E. Justice,
  • Gary T. Lester,
  • Jay E. Jones,
  • Sogal S. Haddadi and
  • Glenn D. Merritt

8 October 2021

We examined riparian system responses to an extreme rainfall event on 1–4 December 2007, in eleven small watersheds (mean area—13.2 km2) from 2008–2016 at debris flow, high flood, and low flood reaches (all extended overbank flows). Macroinvertebrate...

  • Article
  • Open Access
6 Citations
3,787 Views
13 Pages

Biological Crust Diversity Related to Elevation and Soil Properties at Local Scale in a Montane Scrub of Ecuador

  • Leslye Ruiz,
  • Vinicio Carrión-Paladines,
  • Marlon Vega,
  • Fausto López and
  • Ángel Benítez

22 March 2023

The montane shrublands of southern Ecuador represent one of the least studied ecosystems, which in the last decade have been seriously threatened by increasing wildfires, deforestation, overgrazing, and conversion to forest plantations. Our main obje...

  • Perspective
  • Open Access
10 Citations
4,631 Views
12 Pages

13 January 2024

The Nagoya Protocol on Access and Benefit-sharing (ABS) of the Convention on Biological Diversity (CBD) is a fundamental international agreement that plays a crucial role in the protection and equitable utilization of plant genetic resources. While t...

  • Article
  • Open Access
373 Views
20 Pages

13 January 2026

Lycium barbarum L. is an important economic crop in Qinghai province, China. However, root rot seriously reduces the economic results of L. barbarum. Here, we collected the diseased L. barbarum roots from Nuomuhong Farm of Haixi Mongolian and Tibetan...

  • Article
  • Open Access
4 Citations
4,001 Views
18 Pages

26 September 2018

Every system that manages or assesses biodiversity rests on a simplification of its complexity. The simplification of biodiversity is debatable and difficult; even, for example, regarding the elements on which the assessment and management should foc...

  • Article
  • Open Access
41 Citations
16,964 Views
15 Pages

19 February 2017

The Convention on Biological Diversity (CBD), adopted in 1992 and entered into force at the end of 1993, established a global regime on access to genetic resources (GR) and sharing of benefits arising from their utilization (Access and Benefit Sharin...

  • Article
  • Open Access
1,522 Views
19 Pages

Enhancing Biological Nitrogen Fixation Through Diverse Pasture Swards

  • Rukshagini Sutharsan,
  • Paramsothy Jeyakumar,
  • Lucy Burkitt,
  • Dumsane Themba Matse,
  • Ramadoss Dhanuskodi,
  • James Hanly and
  • Daniel J. Donaghy

2 September 2025

Regenerative agricultural practices emphasize the use of diverse pasture species within sustainable agriculture production systems. The inclusion of a range of legume species in diverse pasture swards is likely to increase biological N fixation (BNF)...

  • Article
  • Open Access
8 Citations
3,521 Views
16 Pages

Malaria Risk Drivers in the Brazilian Amazon: Land Use—Land Cover Interactions and Biological Diversity

  • William Gonzalez Daza,
  • Renata L. Muylaert,
  • Thadeu Sobral-Souza and
  • Victor Lemes Landeiro

Malaria is a prevalent disease in several tropical and subtropical regions, including Brazil, where it remains a significant public health concern. Even though there have been substantial efforts to decrease the number of cases, the reoccurrence of e...

  • Feature Paper
  • Technical Note
  • Open Access
59 Citations
10,850 Views
9 Pages

26 September 2019

Biolog® EcoPlates™ (Biolog Inc., Hayward, CA, USA) were developed to analyse the functional diversity of bacterial communities by means of measuring their ability to oxidize carbon substrates. This technique has been successfully adopted fo...

  • Review
  • Open Access
33 Citations
16,670 Views
28 Pages

On the Biological and Genetic Diversity in Neospora caninum

  • Sarwat E. Al-Qassab,
  • Michael P. Reichel and
  • John T. Ellis

22 March 2010

Neospora caninum is a parasite regarded a major cause of foetal loss in cattle. A key requirement to an understanding of the epidemiology and pathogenicity of N. caninum is knowledge of the biological characteristics of the species and the genetic di...

  • Review
  • Open Access
343 Citations
28,285 Views
29 Pages

Diversity in Chemical Structures and Biological Properties of Plant Alkaloids

  • Sweta Bhambhani,
  • Kirtikumar R. Kondhare and
  • Ashok P. Giri

Phytochemicals belonging to the group of alkaloids are signature specialized metabolites endowed with countless biological activities. Plants are armored with these naturally produced nitrogenous compounds to combat numerous challenging environmental...

  • Review
  • Open Access
110 Citations
12,446 Views
31 Pages

Exploration of structurally novel natural products greatly facilitates the discovery of biologically active pharmacophores that are biologically validated starting points for the development of new drugs. Endophytes that colonize the internal tissues...

  • Review
  • Open Access
18 Citations
3,676 Views
23 Pages

19 November 2020

Natural polypropionates (PPs) are a large subgroup of polyketides with diverse structural features and bioactivities. Most of the PPs are discovered from marine organisms including mollusks, fungi and actinomycetes, while some of them are also isolat...

  • Review
  • Open Access
62 Citations
8,136 Views
26 Pages

Tremorgenic Mycotoxins: Structure Diversity and Biological Activity

  • Priyanka Reddy,
  • Kathryn Guthridge,
  • Simone Vassiliadis,
  • Joanne Hemsworth,
  • Inoka Hettiarachchige,
  • German Spangenberg and
  • Simone Rochfort

27 May 2019

Indole-diterpenes are an important class of chemical compounds which can be unique to different fungal species. The highly complex lolitrem compounds are confined to Epichloë species, whilst penitrem production is confined to Penicillium spp. an...

  • Review
  • Open Access
20 Citations
8,115 Views
25 Pages

16 October 2023

Bees are important pollinators worldwide, promoting sustainability in agriculture and natural ecosystems. Moreover, honey bees produce a variety of honey bee products (beehive products). Honey is the main edible bee product. The consumption of pollen...

  • Article
  • Open Access
15 Citations
4,228 Views
14 Pages

Genetic and Biological Diversity of Porcine Sapeloviruses Prevailing in Zambia

  • Hayato Harima,
  • Masahiro Kajihara,
  • Edgar Simulundu,
  • Eugene Bwalya,
  • Yongjin Qiu,
  • Mao Isono,
  • Kosuke Okuya,
  • Gabriel Gonzalez,
  • Junya Yamagishi and
  • Ayato Takada
  • + 3 authors

5 February 2020

Porcine sapelovirus (PSV) has been detected worldwide in pig populations. Although PSV causes various symptoms such as encephalomyelitis, diarrhea, and pneumonia in pigs, the economic impact of PSV infection remains to be determined. However, informa...

  • Article
  • Open Access
15 Citations
3,848 Views
14 Pages

31 July 2021

Evidence so far shows that most alien species (AS) have negative impacts on native biodiversity and are changing biodiversity in almost all environments. Here, we study eight rocky shores at four sites containing reefs with invaded communities and ot...

  • Article
  • Open Access
174 Citations
17,504 Views
13 Pages

Actinomycetes from Sediments in the Trondheim Fjord, Norway: Diversity and Biological Activity

  • Harald Bredholt,
  • Espen Fjærvik,
  • Geir Johnsen and
  • Sergey B. Zotchev

1 February 2008

The marine environment represents a largely untapped source for isolation of new microorganisms with potential to produce biologically active secondary metabolites. Among such microorganisms, Gram-positive actinomycete bacteria are of special interes...

  • Review
  • Open Access
24 Citations
5,419 Views
10 Pages

5 December 2018

Microbial natural products (MNPs) have been identified as important hotspots and effective sources for drug lead discovery. The genus Phaeosphaeria (family: Phaeosphaeriaceae, order: Pleosporales), in particular, has produced divergent chemical struc...

  • Review
  • Open Access
55 Citations
11,212 Views
28 Pages

6 April 2016

The cyanobacteria are well recognized as producers of a wide array of bioactive metabolites including toxins, and potential drug candidates. However, a limited number of taxa are generally considered with respect to both of these aspects. That said,...

  • Feature Paper
  • Review
  • Open Access
33 Citations
7,684 Views
22 Pages

Chemical Diversity and Biological Activity of Secondary Metabolites Isolated from Indonesian Marine Invertebrates

  • Fauzia Izzati,
  • Mega Ferdina Warsito,
  • Asep Bayu,
  • Anggia Prasetyoputri,
  • Akhirta Atikana,
  • Linda Sukmarini,
  • Siti Irma Rahmawati and
  • Masteria Yunovilsa Putra

27 March 2021

Marine invertebrates have been reported to be an excellent resource of many novel bioactive compounds. Studies reported that Indonesia has remarkable yet underexplored marine natural products, with a high chemical diversity and a broad spectrum of bi...

  • Review
  • Open Access
207 Citations
18,090 Views
27 Pages

Diversity of Secondary Metabolites from Marine Bacillus Species: Chemistry and Biological Activity

  • Muhammad Abdul Mojid Mondol,
  • Hee Jae Shin and
  • Mohammad Tofazzal Islam

12 August 2013

Marine Bacillus species produce versatile secondary metabolites including lipopeptides, polypeptides, macrolactones, fatty acids, polyketides, and isocoumarins. These structurally diverse compounds exhibit a wide range of biological activities, such...

  • Review
  • Open Access
126 Citations
18,834 Views
95 Pages

1 April 2014

Among the diversity of secondary metabolites which are produced by plants as means of defence against herbivores and microbes, pyrrolizidine alkaloids (PAs) are common in Boraginaceae, Asteraceae and some other plant families. Pyrrolizidine alkaloids...

  • Review
  • Open Access
10 Citations
5,460 Views
28 Pages

Nidulantes of Aspergillus (Formerly Emericella): A Treasure Trove of Chemical Diversity and Biological Activities

  • Najla Ali Alburae,
  • Afrah E. Mohammed,
  • Hajer Saeed Alorfi,
  • Adnan Jaman Turki,
  • Hani Zakaria Asfour,
  • Walied Mohamed Alarif and
  • Ahmed Abdel-Lateff

17 February 2020

The genus Emericella (Ascomycota) includes more than thirty species with worldwide distribution across many ecosystems. It is considered a rich source of diverse metabolites. The published classes of natural compounds that are discussed here are orga...

  • Review
  • Open Access
53 Citations
7,306 Views
26 Pages

Bacterial Alkyl-4-quinolones: Discovery, Structural Diversity and Biological Properties

  • Muhammad Saalim,
  • Jessica Villegas-Moreno and
  • Benjamin R. Clark

2 December 2020

The alkyl-4-quinolones (AQs) are a class of metabolites produced primarily by members of the Pseudomonas and Burkholderia genera, consisting of a 4-quinolone core substituted by a range of pendant groups, most commonly at the C-2 position. The histor...

  • Feature Paper
  • Review
  • Open Access
46 Citations
8,165 Views
14 Pages

Chemical Diversity and Biological Activities of Marine Sponges of the Genus Suberea: A Systematic Review

  • Amr El-Demerdash,
  • Atanas G. Atanasov,
  • Olaf K. Horbanczuk,
  • Mohamed A. Tammam,
  • Mamdouh Abdel-Mogib,
  • John N. A. Hooper,
  • Nazim Sekeroglu,
  • Ali Al-Mourabit and
  • Anake Kijjoa

12 February 2019

Marine natural products (MNPs) continue to be in the spotlight in the global drug discovery endeavor. Currently, more than 30,000 structurally diverse secondary metabolites from marine sources have been isolated, making MNPs a profound, renewable sou...

  • Review
  • Open Access
42 Citations
5,072 Views
12 Pages

Diterpenoids are the focus of natural product drug discovery because of their great structural diversity and pronounced biological activities. Euphorbia fischeriana Steud is a Chinese traditional medicinal herb for curing edema, ascites, and cancer....

  • Article
  • Open Access
7 Citations
7,934 Views
13 Pages

The Biological Diversity and Production of Volatile Organic Compounds by Stem-Inhabiting Endophytic Fungi of Ecuador

  • Susan M. Rundell,
  • Daniel J. Spakowicz,
  • Alexandra Narváez-Trujillo and
  • Scott A. Strobel

2 December 2015

Fungal endophytes colonize every major lineage of land plants without causing apparent harm to their hosts. Despite their production of interesting and potentially novel compounds, endophytes—particularly those inhabiting stem tissues—are still a vas...

  • Review
  • Open Access
35 Citations
5,947 Views
34 Pages

Marine-Derived Macrocyclic Alkaloids (MDMAs): Chemical and Biological Diversity

  • Hanan I. Althagbi,
  • Walied M. Alarif,
  • Khalid O. Al-Footy and
  • Ahmed Abdel-Lateff

17 July 2020

The curiosity and attention that researchers have devoted to alkaloids are due to their bioactivities, structural diversity, and intriguing chemistry. Marine-derived macrocyclic alkaloids (MDMAs) are considered to be a potential source of drugs. Trab...

  • Article
  • Open Access
14 Citations
7,275 Views
20 Pages

From Lesions to Viral Clones: Biological and Molecular Diversity amongst Autochthonous Brazilian Vaccinia Virus

  • Graziele Oliveira,
  • Felipe Assis,
  • Gabriel Almeida,
  • Jonas Albarnaz,
  • Maurício Lima,
  • Ana Cláudia Andrade,
  • Rafael Calixto,
  • Cairo Oliveira,
  • José Diomedes Neto and
  • Jônatas Abrahão
  • + 3 authors

16 March 2015

Vaccinia virus (VACV) has had an important role for humanity because of its use during the smallpox eradication campaign. VACV is the etiologic agent of the bovine vaccinia (BV), an emerging zoonosis that has been associated with economic, social, ve...

  • Article
  • Open Access
24 Citations
5,636 Views
14 Pages

Biological and Chemical Diversity of Bacteria Associated with a Marine Flatworm

  • Hui-Na Lin,
  • Kai-Ling Wang,
  • Ze-Hong Wu,
  • Ren-Mao Tian,
  • Guo-Zhu Liu and
  • Ying Xu

1 September 2017

The aim of this research is to explore the biological and chemical diversity of bacteria associated with a marine flatworm Paraplanocera sp., and to discover the bioactive metabolites from culturable strains. A total of 141 strains of bacteria includ...

  • Review
  • Open Access
47 Citations
12,726 Views
33 Pages

19 February 2016

The marine environment is an important source of structurally-diverse and biologically-active secondary metabolites. During the last two decades, thousands of compounds were discovered in marine organisms, several of them having inspired the developm...

  • Review
  • Open Access
41 Citations
7,078 Views
32 Pages

15 June 2020

Meroterpenoids are a class of hybrid natural products, partially derived from a mixed terpenoid pathway. They possess remarkable structural features and relevant biological and pharmacological activities. Marine-derived fungi are a rich source of mer...

  • Review
  • Open Access
10 Citations
3,656 Views
32 Pages

21 December 2023

Euphorbia species are important sources of polycyclic and macrocyclic diterpenes, which have been the focus of natural-product-based drug research due to their relevant biological properties, including anticancer, multidrug resistance reversal, antiv...

  • Review
  • Open Access
55 Citations
9,586 Views
43 Pages

15 February 2020

Tetramic acid (pyrrolidine-2,4-dione) compounds, isolated from a variety of marine and terrestrial organisms, have attracted considerable attention for their diverse, challenging structural complexity and promising bioactivities. In the past decade,...

  • Article
  • Open Access
10 Citations
5,387 Views
19 Pages

Structural Diversity and Biological Activity of Cyanopeptolins Produced by Nostoc edaphicum CCNP1411

  • Robert Konkel,
  • Marta Cegłowska,
  • Karolina Szubert,
  • Ewa Wieczerzak,
  • Sofia Iliakopoulou,
  • Triantafyllos Kaloudis and
  • Hanna Mazur-Marzec

26 September 2023

Cyanopeptolins (CPs) are one of the most commonly occurring class of cyanobacterial nonribosomal peptides. For the majority of these compounds, protease inhibition has been reported. In the current work, the structural diversity of cyanopeptolins pro...

  • Review
  • Open Access
2 Citations
2,698 Views
25 Pages

Ent-Kaurane Diterpenoids from Coffea Genus: An Update of Chemical Diversity and Biological Aspects

  • Víctor de C. Martins,
  • Maria Alice E. da Silva,
  • Valdir F. da Veiga,
  • Henrique M. G. Pereira and
  • Claudia M. de Rezende

27 December 2024

Coffee is one of the most important beverages in the world and is produced from Coffea spp. beans. Diterpenes with ent-kaurane backbones have been described in this genus, and substances such as cafestol and kahweol have been widely investigated, alo...

  • Article
  • Open Access
1,336 Views
17 Pages

27 February 2025

Agricultural drainage ditches contain a variety of non-crop vegetation, including potential sources of alternate hosts and food for hymenopteran parasitoids that provide conservation biological control on adjacent farm fields. To assess the patterns...

  • Review
  • Open Access
33 Citations
6,616 Views
53 Pages

20 July 2023

This review delves into the investigation of the biological activity and structural diversity of steroids and related isoprenoid lipids. The study encompasses various natural compounds, such as steroids with aromatic ring(s), steroid phosphate esters...

  • Review
  • Open Access
162 Citations
23,182 Views
64 Pages

Anthraquinones and Derivatives from Marine-Derived Fungi: Structural Diversity and Selected Biological Activities

  • Mireille Fouillaud,
  • Mekala Venkatachalam,
  • Emmanuelle Girard-Valenciennes,
  • Yanis Caro and
  • Laurent Dufossé

25 March 2016

Anthraquinones and their derivatives constitute a large group of quinoid compounds with about 700 molecules described. They are widespread in fungi and their chemical diversity and biological activities recently attracted attention of industries in s...

  • Article
  • Open Access
19 Citations
7,301 Views
20 Pages

16 March 2020

A combined metatranscriptomic and metagenomic study of Vostok (Antarctica) ice core sections from glacial, basal, and lake water accretion ice yielded sequences that indicated a wide variety of species and possible conditions at the base of the glaci...

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