Phytotoxic catechin leached by seeds of the tropical weed Sesbania virgata.

Journal of Chemical Ecology
Kelly SimõesMarcia R Braga

Abstract

Sesbania virgata (Cav.) Pers (wand riverhemp) is a fast-growing tropical legume species that has been used for revegetation of riparian forests and rehabilitation of degraded areas and that exhibits an invasive behavior in certain regions of Brazil. Preliminary studies have shown that seed leachates inhibit the germination and development of seedlings of some crop species. In this study, we report that the seed leachates of S. virgata inhibit the growth of Arabidopsis thaliana and rice. The flavonoid (+)-catechin is found in high amounts in these leachates. It was active at concentrations of 50 microg ml(-1), and its effect was not distinguishable from the (+)-catechin obtained from a commercial source. We found that (+)-catechin is located in the seed coat and is rapidly released in high concentrations (235 microg per seed) at the beginning of imbibition. Quercetin was also detected in the seed coat of S. virgata, but it was not released from the seeds. Other phytotoxic compounds in the seed leachates were also detected. The fact that S. virgata releases high amounts of (+)-catechin, which also has antimicrobial activity, and other phytotoxins from its seeds at the earliest stages of its development might represent some adapta...Continue Reading

References

Mar 5, 2004·Journal of Agricultural and Food Chemistry·Ravikanth VeluriJorge M Vivanco
Jul 31, 2004·Annual Review of Phytopathology·Eric B Nelson
Dec 30, 2006·Journal of Chemical Ecology·Akihiro FurubayashiYoshiharu Fujii
Nov 22, 2007·Journal of Chemical Ecology·Laura G PerryJorge M Vivanco
Aug 1, 2003·Functional Plant Biology : FPB·Patrick A Ndakidemi, Felix D Dakora

❮ Previous
Next ❯

Citations

Oct 10, 2009·Plant Signaling & Behavior·Stephen O DukeAmy C Blair
Jun 9, 2016·Journal of Environmental Sciences (China)·Md Abdullah Yousuf Al HarunRandall W Robinson
Nov 22, 2008·Plant, Cell & Environment·Kerry L MetlenRagan M Callaway
Aug 26, 2009·Communicative & Integrative Biology· InderjitRagan M Callaway
Nov 9, 2010·Communicative & Integrative Biology·Harsh P Bais, Shail Kaushik
May 28, 2010·Plant Signaling & Behavior·Shail KaushikLakshmannan Venkatachalam
Jan 30, 2014·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Larissa Bezerra dos SantosFernando de Almeida Borges
Sep 27, 2013·Anais Da Academia Brasileira De Ciências·Ewerton A S da SilvaMara S P Arruda
Nov 28, 2018·Chemistry & Biodiversity·Tijana ĐorđevićJelena Gajić Umiljendić
Jan 21, 2009·Journal of Chemical Ecology·Stephen O DukeJoanna Bajsa
Sep 2, 2011·Brazilian Journal of Biology = Revista Brasleira De Biologia·P G PraxedesR A B Pessoni

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.