Aspectos gerais e silviculturais de Cordia americana, Aspidosperma polyneuron, Toona ciliata e Kahaya spp.

Klein, Danieli Regina; Andrade, Mariane Moura; Derengoski, Joseane Aparecida; Duarte, Edilaine; Krefta, Sandra Mara; Silveira, Ana Cláudia; Brun, Eleandro José

doi:10.5965/223811711522016155

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…Khaya grandifoliola, initially identified in Brazil as K. ivorensis, is native to West Africa and its use in commercial plantations in the country is increasing. In addition to its timber market value, one of the reasons for this increase is the possible resistance that African mahogany species have against the attack of the Meliaceae shoot borer (Hypsipyla grandella (Zeller) -Lepidoptera: Pyralidae), which is one of most important forest pests of the native mahogany Swietenia macrophylla King (Klein et al 2016).…”

Section: Entomobrasilis 14: E954 (2021)mentioning

confidence: 99%

Leaf-cutting ant (Atta laevigata Smith) in an African mahogany plantation in Minas Gerais state, Brazil

2021

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Khaya grandifoliola C. DC. (Meliaceae), known as African mahogany, is used in the establishment of commercial plantations for high-value timber production. This work aims to report the first occurrence of the genus Atta in a commercial plantation of this species. An ant nest mound with 105 m2 of loose soil and five active ant holes were observed. Leaves cut into crescent shaped sections and pieces of young branches were found near these holes, in addition to trees with the apical part of their crown partially defoliated. The collected specimens were identified as Atta laevigata Smith (Hymenoptera: Formicidae: Attini), locally known as the glass-head leaf-cutting ant.

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Section: Entomobrasilis 14: E954 (2021)mentioning

confidence: 99%

Leaf-cutting ant (Atta laevigata Smith) in an African mahogany plantation in Minas Gerais state, Brazil

2021

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“…Among the exotic species, Khaya grandifoliola C.DC., initially identified as K. ivorensis and known as African mahogany, it is native to the West Africa and has a consolidated commercial use. African mahogany was introduced in Brazil to replace Swietenia macrophylla due to its resistance to the Hypsipyla grandella Zeller, the main pest of Brazilian mahogany (Klein et al, 2016).…”

Section: Vulnerabilidade De Mogno-africano à Predação Por Bovinos Em mentioning

confidence: 99%

Vulnerability of African mahogany to cattle predation in a silvipastural system

Silva

Leonardo

Caldeira

2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the incidence and intensity of damages caused by cattle to African mahogany (Khaya grandifoliola) and this species vulnerability in the silvipastural system. The trees were planted in single lines, in a 20x2 m arrangement. In the third year, cattle were introduced in the area. Three classes of damage intensity were established: low, medium, and high. Damages to tree barks showed the highest incidence, followed by damages to wood. The species is vulnerable to bark chewing by cattle, with damages of medium and high intensities.

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“…Polyneuridine is the main indole alkaloid extracted from the bark and leaves of Aspidosperma polyneuron, a brazilian plant species that reaches from 20m to 30m in height, popularly known as peroba-rosa, belonging to the Apocinaceae family that occurs in the states of Bahia. Espírito Santo, Rio de Janeiro, Santa Catarina, Minas Gerais, São Paulo, Mato Grosso do Sul, Paraná and Rondônia (KLEIN et al, 2016). Some indole alkaloids are natural bioactives that act preferentially on the central nervous system, such as ibogaine, which has a bicyclic nitrogenous subunit incorporated into the 5-methoxyindole system, which has an aminoethyl unit similar to the chemical structure of serotonin…”

Section: Introductionmentioning

confidence: 99%

Study of the Alkaloid Polyneuridine as a Drug Candidate for Therapy of Alzheimer's Disease

Silva¹,

Silva²

2021

revistageintec

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Alzheimer's disease is characterized by the progressive and irreversible loss of natural cognitive functions in most elderly people. There is currently no cure for this neurodegenerative disorder, but there are therapies available on the market based on substances that inhibit acetylcholinesterase and cognitive symptoms as a way to improve cholinergic hypofunction. Polyneuridine is the main indole alkaloid extracted from the bark and leaves of Aspidosperma polyneuron, a brazilian plant species popularly known as peroba-rosa. The objective of this work is to investigate, through a scientific prospection, the polyneuridine alkaloid, as well as its anticholinesterase property, since it is known that the therapy of this disease is based on cholinesterase inhibitors. To carry out the study, two of the main publication databases of journals such as PubMed and Web of Science were analyzed. To search for scientific production, we inserted the following keywords combined with the terms in english to carry out the search in international databases: “Polyneuridine”, “Polyneuridine AND anticholinesterase properties”, “Polyneuridine AND Alzheimer's disease”. The need for studies on this alkaloid is urgent, especially since Brazil holds the plant species that produces the most polyneuridine, but the plant species Aspidosperma polyneuron is on the red line of extinction due to the unbridled exploitation of its wood. It is concluded that if this exploration scenario continues, Brazil will lose a very important pharmacological genetic resource of its plant flora.

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Aspectos gerais e silviculturais de Cordia americana, Aspidosperma polyneuron, Toona ciliata e Kahaya spp.

Cited by 5 publications

References 3 publications

Leaf-cutting ant (Atta laevigata Smith) in an African mahogany plantation in Minas Gerais state, Brazil

Leaf-cutting ant (Atta laevigata Smith) in an African mahogany plantation in Minas Gerais state, Brazil

Vulnerability of African mahogany to cattle predation in a silvipastural system

Study of the Alkaloid Polyneuridine as a Drug Candidate for Therapy of Alzheimer's Disease

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