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Morphogenic responses and biochemical alterations induced by the cover crop Urochloa ruziziensis and its component protodioscin in weed species.
da Costa Menezes, Paulo Vinicius Moreira; Silva, Adriano Antonio; Mito, Márcio Shigueaki; Mantovanelli, Gislaine Cristiane; Stulp, Gabriel Felipe; Wagner, Ana Luiza; Constantin, Rodrigo Polimeni; Baldoqui, Débora Cristina; Silva, Raísa Gonçales; Oliveira do Carmo, Amanda Aparecida; de Souza, Luíz Antonio; de Oliveira Junior, Rubem Silvério; Araniti, Fabrizio; Abenavoli, Maria Rosa; Ishii-Iwamoto, Emy Luiza.
Afiliação
  • da Costa Menezes PVM; Department of Biochemistry, State University of Maringa, Brazil.
  • Silva AA; Center of Biological Sciences and Nature, Federal University of Acre, Rio Branco, Brazil.
  • Mito MS; Department of Biochemistry, State University of Maringa, Brazil.
  • Mantovanelli GC; Department of Biochemistry, State University of Maringa, Brazil.
  • Stulp GF; Department of Biochemistry, State University of Maringa, Brazil.
  • Wagner AL; Department of Biochemistry, State University of Maringa, Brazil.
  • Constantin RP; Department of Biochemistry, State University of Maringa, Brazil.
  • Baldoqui DC; Department of Chemistry, State University of Maringa, Brazil.
  • Silva RG; Department of Biology, State University of Maringa, Brazil.
  • Oliveira do Carmo AA; Department of Biology, State University of Maringa, Brazil.
  • de Souza LA; Department of Biology, State University of Maringa, Brazil.
  • de Oliveira Junior RS; Department of Agronomy, State University of Maringa, Brazil.
  • Araniti F; Department of Agricultural and Environmental Sciences, University of Milan, Italy.
  • Abenavoli MR; Università Mediterranea di Reggio Calabria, Italy.
  • Ishii-Iwamoto EL; Department of Biochemistry, State University of Maringa, Brazil. Electronic address: eliiwamoto@uem.br.
Plant Physiol Biochem ; 166: 857-873, 2021 Sep.
Article em En | MEDLINE | ID: mdl-34237604
Urochloa ruziziensis, a cover plant used in no-till systems, can suppress weeds in the field through their chemical compounds, but the mode of action of these compounds is still unknown. The present study aimed to investigate the effects of a saponin-rich butanolic extract from U. ruziziensis straw (BfUr) and one of its components, protodioscin on an eudicot Ipomoea grandifolia and a monocot Digitaria insularis weed. The anatomy and the morphology of the root systems and several parameters related to energy metabolism and antioxidant defense systems were examined. The IC50 values for the root growth inhibition by BfUr were 108 µg mL-1 in D. insularis and 230 µg mL-1 in I. grandifolia. The corresponding values for protodioscin were 34 µg mL-1 and 54 µg mL-1. I. grandifolia exhibited higher ROS-induced peroxidative damage in its roots compared with D. insularis. In the roots of both weeds, the BfUr and protodioscin induced a reduction in the meristematic and elongation zones with a precocious appearance of lateral roots, particularly in I. grandifolia. The roots also exhibited features of advanced cell differentiation in the vascular cylinder. These alterations were similar to stress-induced morphogenic responses (SIMRs), which are plant adaptive strategies to survive in the presence of toxicants. At concentrations above their IC50 values, the BfUr or protodioscin strongly inhibited the development of both weeds. Such findings demonstrated that U. ruziziensis mulches may contribute to the use of natural and renewable weed control tools.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Saponinas / Diosgenina Idioma: En Revista: Plant Physiol Biochem Assunto da revista: BIOQUIMICA / BOTANICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: França
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Saponinas / Diosgenina Idioma: En Revista: Plant Physiol Biochem Assunto da revista: BIOQUIMICA / BOTANICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: França