Herbicidal bioactivity of natural compounds from <i>Lantana camara</i> on the germination and seedling growth of <i>Bidens pilosa</i>

Gindri, Diego Medeiros; Coelho, Cileide Maria Medeiros; Uarrota, Virgilio Gavicho; Rebelo, Andrey Martinez

doi:10.1590/1983-40632020v5057746

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Pesquisa Agropecuária Tropical

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Research Article • Pesqui. Agropecu. Trop. 50 • 2020 • https://doi.org/10.1590/1983-40632020v5057746 copy

Herbicidal bioactivity of natural compounds from Lantana camara on the germination and seedling growth of Bidens pilosa

Bioatividade herbicida de compostos naturais de Lantana camara na germinação e crescimento de plântulas de Bidens pilosa

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Lantana camara (L.) is considered one of the main invasive plants, and the allelochemicals produced by this species can be defined as bioactive secondary metabolites that mediate chemical interactions between the plant and other organisms and, therefore, play an important role in its succession and establishment. The present study aimed to investigate the effect of L. camara aqueous extracts on the germination and growth behavior of Bidens pilosa (L.) by evaluating physiological parameters (germination rate, germination speed index, seedling performance and structure and membrane integrity), as well as the extract metabolic profile. The extract reduced the germination speed index and seedling growth rate and promoted abnormalities in the geotropism and root development in both populations. The third germination phase was highly affected (more than the phases I and II). Lantadene A and B are the possible compounds conferring the herbicidal properties, and the L. camara extract has a potential to be used in the development of a new environmentally-friendly herbicide.

KEYWORDS:
Lantadene; seed physiology; phytotoxicity; bioactive compounds

	Wave nº (cm ^-1)	Assignment
Leaf powder of L. camara	1063	C-O of ester groups or C-C and C-O-C vibration in 1,8-cineole¹ 1 Schulz & Baranska (2007); ; ² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016).
	1154	Unknown
	1201	C-O; C-O-H; C-C; and C-N amines or C-C-O group of phenolics⁵ 5 Oliveira et al. (2016). ; ¹ 1 Schulz & Baranska (2007); ; ² 2 Lu & Rasco (2012); ; ⁴ 4 Kumar et al. (2015);
	1265	C-O vibration of hydroxyl flavonoids or C-C-O group of phenolics⁵ 5 Oliveira et al. (2016). ; ¹ 1 Schulz & Baranska (2007);
	1420	COO- vibration¹ 1 Schulz & Baranska (2007);
	1444	CH₂ group in ß-caryophyllene¹ 1 Schulz & Baranska (2007);
	1518	C=C vibrations aromatic rings of phenolics and flavonoids⁵ 5 Oliveira et al. (2016).
	1609	C=O of ketones or conjugated alkenes; -COOH of esters⁴ 4 Kumar et al. (2015); ; ¹ 1 Schulz & Baranska (2007);
	1640	ß - pinene C=C ring vibration and ß-caryophyllene asymmetric bending vibration of amine N-H¹ 1 Schulz & Baranska (2007); ; ⁵ 5 Oliveira et al. (2016).
	2927	CH₃ or -CH₂ vibration in carboxylic acids² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016).
	3388	Hydroxyl groups attached to alcohol and carboxylic acid⁴ 4 Kumar et al. (2015); ; ⁵ 5 Oliveira et al. (2016).
	3396	Hydroxyl groups attached to alcohol and carboxylic acid⁴ 4 Kumar et al. (2015); ; ⁵ 5 Oliveira et al. (2016).
Aqueous leaf extract of L. camara	979	C-O; C-O-H; C-C; C-O-C vibrations in 1,8-cineole and Lantadene² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016). ; ³ 3 Ingawale & Goswami-Giri (2014);
	1006	C-O; C-O-H; C-C; C-O-C vibrations in 1,8-cineole and Lantadene² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016). ; ³ 3 Ingawale & Goswami-Giri (2014);
	1365	CH₃(C=O) of ester groups in 1,8-cineole and ß-caryophyllene¹ 1 Schulz & Baranska (2007); ; ² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016).
	1375	CH₃(C=O) of ester groups
	1397	CH₃(C=O) of ester groups in 1,8-cineole and ß-caryophyllene¹ 1 Schulz & Baranska (2007); ; ² 2 Lu & Rasco (2012); ; ⁵ 5 Oliveira et al. (2016).
	1436	CH₂ vibration in Lantadene¹ 1 Schulz & Baranska (2007);
	1458	C-H; CH₃; CH₂; and C=C aromatic rings flavonoids and phenolics¹ 1 Schulz & Baranska (2007); ; ⁵ 5 Oliveira et al. (2016).
	1473	Deformation of C-H in -CH₂² 2 Lu & Rasco (2012);
	1978; 2621; 3841; 3867; 3902; 3920	Unknown

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Schulz & Baranska (2007)SCHULZ, H.; BARANSKA, M. Identification and quantification of valuable plant substances by IR and Raman spectroscopy. Vibrational Spectroscopy, v. 43, n. 1, p. 13-25, 2007.;

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Lu & Rasco (2012)LU, X.; RASCO, B. Determination of antioxidant content and antioxidant activity in foods using infrared spectroscopy and chemometrics: a review. Critical Reviews in Food Science and Nutrition, v. 52, n. 10, p. 853-875, 2012.;

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