scholarly journals Uptake, Metabolism and Toxicity of Selenium in Tropical Plants

2020 ◽  
Author(s):  
Abiodun Humphrey Adebayo ◽  
Omolara Faith Yakubu ◽  
Osarobo Bakare-Akpata
Keyword(s):  
Tropical Plants

Searching for iridoids from tropical plants: detection, isolation and antibacterial activity

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
M Litaudon ◽  
E Le Borgne ◽  
P Teres ◽  
B Deguin ◽  
M Lecsö Bornet ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Tropical Plants

scholarly journals Fungal-Fungal Interactions in Leaf-Cutting Ant Agriculture

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Sunshine A. Van Bael ◽  
Catalina Estrada ◽  
William T. Wcislo
Keyword(s):  
Plant Traits ◽  
Secondary Compounds ◽  
Future Research ◽  
Ecological Interactions ◽  
Tropical Plants ◽  
Symbiotic Relationships ◽  
Complex Interactions ◽  
Symbiotic Fungi ◽  
Leaf Cutting ◽  
Fungal Interactions

Many organisms participate in symbiotic relationships with other organisms, yet studies of symbioses typically have focused on the reciprocal costs and benefits within a particular host-symbiont pair. Recent studies indicate that many ecological interactions involve alliances of symbionts acting together as mutualistic consortia against other consortia. Such interacting consortia are likely to be widespread in nature, even if the interactions often occur in a cryptic fashion. Little theory and empirical data exist concerning how these complex interactions shape ecological outcomes in nature. Here, we review recent work on fungal-fungal interactions between two consortia: (i) leaf-cutting ants and their symbiotic fungi (the latter grown as a food crop by the former) and (ii) tropical plants and their foliar endophytes (the cryptic symbiotic fungi within leaves of the former). Plant characteristics (e.g., secondary compounds or leaf physical properties of leaves) are involved in leaf-cutting ant preferences, and a synthesis of published information suggests that these plant traits could be modified by fungal presence. We discuss potential mechanisms for how fungal-fungal interactions proceed in the leaf-cutting ant agriculture and suggest themes for future research.

scholarly journals Seed tannin composition of tropical plants

2021 ◽  
Vol 187 ◽  
pp. 112750
Author(s):  
Jorma Kim ◽  
Sofia Gripenberg ◽  
Maarit Karonen ◽  
Juha-Pekka Salminen
Keyword(s):  
Tropical Plants

scholarly journals Mycoplasma melaleucae sp. nov., a Sterol-Requiring Mollicute from Flowers of Several Tropical Plants

1990 ◽  
Vol 40 (2) ◽  
pp. 143-147 ◽  
Author(s):  
J. G. TULLY ◽  
D. L. ROSE ◽  
R. E. McCOY ◽  
P. CARLE ◽  
J. M. BOVE ◽  
...  
Keyword(s):  
Tropical Plants

scholarly journals Holocene changes in African vegetation: tradeoff between climate and water availability

2014 ◽  
Vol 10 (2) ◽  
pp. 681-686 ◽  
Author(s):  
C. Hély ◽  
A.-M. Lézine ◽  
APD contributors
Keyword(s):  
West Africa ◽  
Water Availability ◽  
Regional Scale ◽  
Plant Distribution ◽  
Climate Conditions ◽  
Tropical Plants ◽  
Plant Migration ◽  
Spatio Temporal ◽  
The Individual ◽  
Instrumental Records

Abstract. Although past climate change is well documented in West Africa through instrumental records, modeling activities, and paleo-data, little is known about regional-scale ecosystem vulnerability and long-term impacts of climate on plant distribution and biodiversity. Here we use paleohydrological and paleobotanical data to discuss the relation between available surface water, monsoon rainfall and vegetation distribution in West Africa during the Holocene. The individual patterns of plant migration or community shifts in latitude are explained by differences among tolerance limits of species to rainfall amount and seasonality. Using the probability density function methodology, we show here that the widespread development of lakes, wetlands and rivers at the time of the "Green Sahara" played an additional role in forming a network of topographically defined water availability, allowing for tropical plants to migrate north from 15 to 24° N (reached ca. 9 cal ka BP). The analysis of the spatio–temporal changes in biodiversity, through both pollen occurrence and richness, shows that the core of the tropical rainbelt associated with the Intertropical Convergence Zone was centered at 15–20° N during the early Holocene wet period, with comparatively drier/more seasonal climate conditions south of 15° N.

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