Sandwich method applied to the screening of allelopathic action in Byrsonima spp. (Malpighiaceae)

In order to understand the allelochemical action of Byrsonima intermedia A. Juss. and B. verbascifolia Rich. ex A. Juss., the effects on germination, initial growth and cell cycle of Lactuca sativa L., exposed to leaves and fruits of this species, were evaluated using the sandwich method. Data were...

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Bibliographic Details
Published inBiológia Vol. 75; no. 2; pp. 175 - 182
Main Authors Amâncio, Bárbara Christina Silva, Govêa, Kamilla Pacheco, de Oliveira Ribeiro Trindade, Luciene, da Cunha Neto, Antonio Rodrigues, de Souza, Thiago Corrêa, Barbosa, Sandro
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.02.2020
Springer Nature B.V
Subjects
Allelopathy
Biomedical and Life Sciences
Byrsonima
Cell Biology
Cell cycle
Cell division
Elongation
Fruits
Germination
Life Sciences
Meristems
Metaphase
Microbiology
Organs
Original Article
Plant Sciences
Variance analysis
Zoology
Allelopathy
Development
Cytotoxicity
Phytotoxicity
Growth
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Summary:In order to understand the allelochemical action of Byrsonima intermedia A. Juss. and B. verbascifolia Rich. ex A. Juss., the effects on germination, initial growth and cell cycle of Lactuca sativa L., exposed to leaves and fruits of this species, were evaluated using the sandwich method. Data were subjected to analysis of variance and means were compared by the Scott-Knott test ( p  < 0.05). For the parameters germination percentage and germination rate index, no difference between Byrsonima spp. was observed, and B. intermedia fruits were responsible for the highest inhibition of lettuce germination, compared to the leaves. Root elongation in lettuce exposed to B. verbascifolia organs showed stimulatory effects and B. intermedia organs showed inhibitory effects on root growth. The mitotic index showed the allelopathic effect of Byrsonima spp. by the reduction in cell division in lettuce root meristem, and the stimulus in root elongation was caused by B. verbascifolia , understood as a consequence of cell expansion, not mitotic activity. An aneugenic effect of Byrsonima spp. was observed, and the highest frequency of C-metaphase and stickness was found in B. verbascifolia fruits and B. intermedia leaves.
ISSN:0006-3088
1336-9563
DOI:10.2478/s11756-019-00369-x