Principal Response Curves analysis of polyphenol variation in resistant and susceptible cotton after infection by a root-knot nematode (RKN)

Alves, Gleina Costa Silva; Ferri, Pedro Henrique; Seraphin, José Carlos; Fortes, Gilmara Aparecida Corrêa; Rocha, Mara Rúbia da; Santos, Suzana da Costa

Principal Response Curves analysis of polyphenol variation in resistant and susceptible cotton after infection by a root-knot nematode (RKN)

Data

2016

Autores

Alves, Gleina Costa Silva

Ferri, Pedro Henrique

Seraphin, José Carlos

Fortes, Gilmara Aparecida Corrêa

Rocha, Mara Rúbia da

Santos, Suzana da Costa

Resumo

The root-knot nematode (RKN), Meloidogyne incognita, attacks cotton root system. This study aimed to compare the induction of phenolic compounds over time in two cotton genotypes, resistant (TX-25) and susceptible (FM966), by RKN. Chemical profiles of cotton roots were obtained by HPLC, NMR, and colorimetric methods at four different time intervals. The Principal Response Curves analysis, a time-dependent, multivariate method, showed consistent variability over time in the profile of phenolic compounds between treatments for both genotypes. The variables that most contributed to the divergence between damaged and undamaged cotton roots were dimethoxylated and non-methoxylated gossypols, total flavonoids, and total phenols.

Citação

ALVES, Gleina C. S. et al. Principal Response Curves analysis of polyphenol variation in resistant and susceptible cotton after infection by a root-knot nematode (RKN). Physiological and Molecular Plant Pathology, [s. l.], v. 96, p. 19-28, 2016. DOI: 10.1016/j.pmpp.2016.06.006. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0885576516300935?via%3Dihub. Acesso em: 11 jul. 2024.