scholarly journals Characterization of Essential Oil and Effects on Growth of Verbena gratissima Plants Treated with Homeopathic Phosphorus

2011 ◽  
Vol 6 (10) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Fúlvia M. Santos ◽  
Lucila E. F. Monfort ◽  
Daniel M. Castro ◽  
José E. B. P. Pinto ◽  
Michele Leonardi ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Essential Oil ◽  
Plant Growth ◽  
Linear Growth ◽  
Chemical Characterization ◽  
Dry Mass ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Dry Biomass

Plant models offer a method to examine the efficacy of homeopathic solutions. Homeopathic Phosphorus (P) dynamizations were evaluated on the linear growth and dry biomass of Verbena gratissima, a plant native to Brazil. The yields and chemical characterization of the essential oil are also given. Plants exhibited phenotypic plasticity after the homeopathic Phosphorus treatments. The dynamization 9CH, in particular, interfered with plant growth, height, diameter of stems and total dry mass. 9CH treatment showed the highest yield of essential oil. The essential oil composition of V. gratissima varied according to the different dynamization used. Homeopathic Phosphorus provided the greatest amount of β-pinene, trans-pinocarveol, trans-pinocamphone and trans-pinocarvyl acetate in comparison with controls.

scholarly journals Characterization of Leaf Essential Oil Composition of Homozygous and HeterozygousCitrus clementinaHort. Extan. and its Ancestors

2013 ◽  
Vol 16 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Maria Antonietta Germanà ◽  
Eristanna Palazzolo ◽  
Benedetta Chiancone ◽  
Filippo Saiano
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Leaf Essential Oil

scholarly journals Chemical characterization of Lavandula dentata L. essential oils grown in Uberaba-MG

2019 ◽  
Vol 49 (8) ◽  
Author(s):  
Rhéltheer de Paula Martins ◽  
Roseli Aparecida da Silva Gomes ◽  
Ana Claudia Granato Malpass ◽  
Mônica Hitomi Okura
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Chemical Characterization ◽  
Minas Gerais ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Varied Chemical ◽  
Lavandula Officinalis ◽  
Promising Perspective

ABSTRACT: The essential oils of the different parts of Lavandula dentata L. (inflorescences and aerial part without inflorescences) collected in the city of Uberaba (minas Gerais State)were obtained by hydro distillation, and their chemical composition was determined by gas chromatography coupled to mass spectrometry and compared to the chemical composition of essential oil of Lavandula hybrida and Lavandula officinalis. It was observed that the essential oils of the studied species have varied chemical composition and are composed mainly of monoterpenes. The essential oils of L. hybrida and L. officinalis showed a higher concentration of linalool and linaline acetate, while L. dentata L. presented higher concentration of fenchone, eucalyptol and camphor. Results indicate that the essential oil composition of L. dentata L. grown in Uberaba is similar to those produced in Curitiba - PR, providing a promising perspective for the cultivation and extraction of essential oils of this species in Minas Gerais.

Characterization of the Leaf Essential Oil Composition of Annona squamosa L. from Foothills of North India

2016 ◽  
Vol 5 (5) ◽  
Author(s):  
Ram Swaroop Verma ◽  
Neeta Joshi ◽  
Rajendra Chandra Padalia ◽  
Ved Ram Singh ◽  
Prakash Goswami ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
North India ◽  
Annona Squamosa ◽  
Oil Composition ◽  
Leaf Essential Oil

scholarly journals Short-term changes related to autotetraploidy in essential oil composition of Eucalyptus benthamii Maiden & Cambage and its applications in different bioassays

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alex Junior da Silva ◽  
Wellington Ronildo Clarindo ◽  
Guilherme Ferreira Simiqueli ◽  
Milene Miranda Praça-Fontes ◽  
Luiza Alves Mendes ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Shoot Growth ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Breeding Programs ◽  
Ploidy Levels ◽  
Chemical Variability ◽  
Root Meristematic Cells

AbstractSome forest trees have been polyploidized to improve their traits and to supply new germplasms for breeding programs. As trees have a long juvenile stage, the early characterization of the chromosome set doubling effects is crucial for previous selection. Thus, we aimed to characterize the chemical variability of essential oils from diploid and autotetraploid germplasms (autotetraploid A and B) of Eucalyptus benthamii, as well as to evaluate their larvicidal and allelopathic effects. Autotetraploid A showed a higher essential oil yield than diploid and autotetraploid B, which did not differ quantitatively. Aromadendrene, viridiflorol and α-pinene were the major compounds in the diploid essential oil. In contrast, compounds were present in autotetraploids, such as 1,8-cineole, limonene, α-terpineol, and α-terpinyl-acetate. Essential oils from the diploid at 50–200 ppm were twice as larvicidal than those from autotetraploids against Aedes aegypti larvae. Considering the phytotoxicity bioassays using Lactuca sativa, essential oils from both ploidy levels affected root growth. Moreover, the essential oils inhibited shoot growth at all concentrations tested (187.5; 375; 750; 1500; and 3000 ppm). Autotetraploid A and B had the same effect on shoot growth as glyphosate. The essential oils had no cytogenotoxic effect on root meristematic cells of L. sativa, whereas phytotoxic potential was identified mainly in shoot growth. This work demonstrated a dramatic change in secondary metabolism (terpene composition) related to an increase in the ploidy level in Eucalyptus germplasms. In addition, we report the novelty of the chemical composition of essential oils among germplasms and their potential use as larvicidal and post-emergence weed control agents.

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