Allelopathic effects of <i>Araucaria angustifolia</i> needle extracts in the growth of <i>Lactuca sativa</i> seeds

Braine, Jessie Willian; Curcio, Gustavo Ribas; Wachowicz, Cyntia Maria; Hansel, F. A.

doi:10.1007/s10310-011-0314-1

Cited by 14 publications

(11 citation statements)

References 18 publications

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“…Allelopathic effects of leaf extracts are well documented for several plant species (e.g. Alrababah et al 2009;Braine et al 2012;Ayub et al 2013;Won et al 2013). Recently, Ayub et al (2013) reported the phytotoxic effect of several legume leaf extracts on germination and growth of maize, and found more pronounced effect in a sesbania species.…”

Section: Discussionmentioning

confidence: 97%

Phytotoxic effect of Sesbania virgata (Cav.) Pers. on seeds of agronomic and forestry species

Id¹,

Costa²,

Mignoni³

et al. 2015

J. For. Res.

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Sesbania virgata (Cav.) Pers. is a pioneer species native to South America able to release allelochemicals that affect germination and development of other plant species. The aim of this work was to evaluate the allelopathic effect of S. virgata on the germination and development of co-occurring species from gallery forest and on agronomic species. Two forest native species, Enterolobium contortisiliquum (Vell.) Morong and Sapindus saponaria L., and two agronomic species (these as control), Oryza sativa L. and Solanum lycopersicum L. were used in the lab and greenhouse assays with seeds and leaf extracts of S. virgata. Agronomic species were more affected than native species when co-germinated with seeds of S. virgata. The germination percentage and speed germination index of the agronomic species were reduced in both in vitro and greenhouse assays. In the same assays, the seeds of native species showed no significant differences in the parameters mentioned. However, the initial growth of the four species assayed was affected, with reduction in plant length and shoot diameter followed by significant reduction in plantlet shoot and root weights. In the assays with irrigation of S. virgata leaf extracts, no significant inhibitory effects on germination were observed for all species. Height and shoot diameter of the native species were not affected by the leaf extracts, nor were fresh and dry weights. However, these parameters increased in the agronomic species as they were irrigated with leaf extracts. Based on our data we conclude that seed leachates of S. virgata affect germination and seedling development of other species, suggesting that its invasive behavior is due mainly to seed allelochemicals. Although with less pronounced effects on native species, allelopathy of S. virgata might also influence Interspecific competition in its natural environment.

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Section: Discussionmentioning

confidence: 97%

Phytotoxic effect of Sesbania virgata (Cav.) Pers. on seeds of agronomic and forestry species

Id¹,

Costa²,

Mignoni³

et al. 2015

J. For. Res.

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“…In addition to the powerful chemical characterization of the seeds, other parts of the tree are equally important. Studies have reported that the resin (found in the wood and knots), the dead bark (which is naturally discarded by the tree) and the leaves (needles) retain an intriguing chemical composition with dynamic biological activity [10][11][12][13][14][15][16]. Our group has importantly contributions regarding A. angustifolia biological effects.…”

Section: Introductionmentioning

confidence: 92%

“…Besides resin, propolis contain terpenic compounds mostly di-and triterpenes [38]. Steroids and terpenoids were also identified in A. angustifolia leaves [16] and bark, mainly the steroid sitosterol ( Figure 5I) and the diterpene sugiol ( Figure 5J) [50]. Isoprenoids are synthesized during different stages of plant development.…”

Section: Steroids and Terpenesmentioning

confidence: 99%

“…There are only two studies in the scientific literature exploring the allelopathic and entomotoxic potentials of araucaria. In a study conducted by Braine et al [16], it was showed that the extract from A. angustifolia leaves (187.5 and 250 mg) presents allelopathic potential on germination and growth of Lactuca sativa seeds, and the main allelochemical compounds identified in the ethanolic extract were ent-kaurene and phyllocladene. This allelopathic potential seems to serve A. angustifolia on the successional dynamics of Araucaria Moist Forests.…”

Section: Allelopathic and Entomotoxic Activitiesmentioning

confidence: 99%

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Chemical Constituents and Biological Activities of Araucaria angustifolia (Bertol.) O. Kuntze: A Review

Branco¹,

Rodrigues²,

Lima³

et al. 2016

J Org Inorg Chem

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Araucaria angustifolia is a tree that belongs to Araucariaceae family and it is mainly found in Southern Brazil. This plant has a notable therapeutical history in folk medicine holding great socioeconomic and environmental importance. Until now, some studies were conducted to assess its chemical composition, biological and pharmacological properties. The studies have shown that the bark, knot, needles (leaves), seeds and bracts (sterile seeds) contain high concentrations of active compounds and exhibit different biological effects. In the folk medicine the different parts of this plant are used to treat various types of illnesses, such as shingles, respiratory tract infections, sexually transmitted diseases and some types of wounds. Bearing this in mind, this review focuses on all currently chemical and biological effects already reported for A. angustifolia and provide a novel perspective and useful information for future research.

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“…Kuntze) in doses of 62.5-250 mg was investigated using an in vitro study on lettuce seed germination and seedling growth (Braine et al 2012). While seed germination was inhibited only at the highest dose (250 mg), germination rate was negatively affected at all applied doses of the extract at the first days of germination in a dose-dependent manner.…”

Section: Araucariamentioning

confidence: 99%

Allelopathic Potential of Select Gymnospermous Trees

Teixeira¹,

Karimi²,

Mohsenzadeh³

et al. 2015

Journal of Forest and Environmental Science

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Allelopathy is an ecological phenomenon that refers to the beneficial or harmful effects of one plant on another plant, both crop and weed species, by the release of organic chemicals (allelochemicals) from plant parts by leaching, root exudation, volatilization, residue decomposition in soil and other processes in both natural and agricultural systems. Allelopathy can affect many aspects of plant ecology including occurrence, growth, plant succession, the structure of plant communities, survival, dominance, diversity, and plant productivity. In this review, we describe the concept of allelopathy, some mechanisms of operation within plants and then focus on a select number of gymnospermous tree genera: Ephedra, Pinus, Taxus, Cedrus, Juniperus, Picea, Cunninghamia and Araucaria. Pinus, Taxus (yew) and Cedrus (cedar) trees have a strong negative allelopathic effect on the germination, growth, or development of other plant species in the forest community.

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Allelopathic effects of Araucaria angustifolia needle extracts in the growth of Lactuca sativa seeds

Cited by 14 publications

References 18 publications

Phytotoxic effect of Sesbania virgata (Cav.) Pers. on seeds of agronomic and forestry species

Phytotoxic effect of Sesbania virgata (Cav.) Pers. on seeds of agronomic and forestry species

Chemical Constituents and Biological Activities of Araucaria angustifolia (Bertol.) O. Kuntze: A Review

Allelopathic Potential of Select Gymnospermous Trees

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