Open Access
REVIEW
Orozco Montes F1, A Vázquez-Hernández2, B Fenton-Navarro1
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 1-10, 2019, DOI:10.32604/phyton.2019.04525
Abstract An increased interest in the antioxidant effects
of medicinal plants has developed in recent years. Identifying
antioxidant compounds present in medicinal plants and elucidating
the mechanism by which they prevent oxidation have been the
focus of the research community. We performed a systematic and
exhaustive review aimed at analyzing the available data regarding
the beneficial effects of secondary metabolites in plants. The result
of this review is presented as a description of free radicals, as well
as cellular and physiological oxidative stress, is provided. The
origin and source of antioxidant compounds, and the cellular and
molecular mechanism by which they… More >
Open Access
ARTICLE
Hernández Pérez A1, E Cerna Chávez2, JC Delgado Ortiz3, M Beltrán Beache4, LM Tapia Vargas5, YM Ochoa Fuentes2
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 11-13, 2019, DOI:10.32604/phyton.2019.04608
Abstract Mexico is the main producer, consumer and exporter
of avocado in the world, being Michoacan the main producer state
contributing more than 80% of the national production. There
are phytopathogens that decimate the production causing the
death of the tree. Root samples were collected in avocado trees
that showed the characteristic symptomatology of the disease
known as avocado sadness, the sampling was carried out in four
of the main avocado producing towns, in the state of Michoacan,
Mexico. The isolation consisted in sowing root tissue in Petri
dishes with V8®-PARPH culture medium, subsequently they were
identified morphologically and for species… More >
Open Access
ARTICLE
Krupa-Małkiewicz M1, B Smolik2, M Sędzik2
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 15-23, 2019, DOI:10.32604/phyton.2019.04670
Abstract Salinity is one of the abiotic stresses that limits the
growth and productivity of many crops. A possible survival strategy
for plant under saline conditions is to use compounds that could
minimize the harmful effects of salt stress on the plant development.
The objective of the presented study was to investigate the effect
of exogenous ascorbic acid (ASA) with or without gibberellic acid
(GA3) on key growth and biochemical parameters in two petunia
cultivars ‘Prism Rose’ and ‘Prism White’ under saline (150 mM
NaCl) and non-saline in vitro condition. Nodal cutting with an
axillary buds were used as explants. Application… More >
Open Access
ARTICLE
Quezada-Rivera JJ1, RE Soria-Guerra2, FS Pérez-Juárez2, L Martínez-González2, SE Valdés- Rodríguez3, NL Vasco-Méndez1, JF Morales-Domínguez1
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 25-35, 2019, DOI:10.32604/phyton.2019.04549
Abstract The use of antimicrobial peptides (AMPs) synthesized
by bacteria (bacteriocins) is an alternative for combating multidrug
resistant bacterial strains and their production by recombinant route
is a viable option for their mass production. The bacteriocin E-760
isolated from the genus Enterococcus sp. has been shown to possess
inhibitory activity against Gram-negative and Gram-positive
bacteria. In this study, the expression of a chimeric protein coding
for E-760 in the nucleus of C. reinhardtii was evaluated, as well as,
its antibacterial activity. The synthetic gene E-760S was inserted
into the genome of C. reinhardtii using Agrobacterium tumefaciens.
A transgenic line was identified… More >
Open Access
ARTICLE
López-Valenzuela BE1,2, Armenta-Bojórquez AD3, Hernández-Verdugo S4, Apodaca- Sánchez MA1, Samaniego-Gaxiola JA5, Valdez-Ortiz A6
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 37-46, 2019, DOI:10.32604/phyton.2019.04621
Abstract Microbes that are beneficial to plants are used to
enhance the crop growth, yield and are alternatives to chemical
fertilizers. Trichoderma and Bacillus are the predominant plant
growth-promoting fungi and bacteria. The objective of this study
was select, characterize, and evaluate isolates of Trichoderma
spp. and Bacillus spp. native from the northern region of Sinaloa,
Mexico, and assess their effect on growth promotion in maize (Zea
mays L.). In greenhouse conditions, four Trichoderma isolates and
twenty Bacillus isolates, as well as two controls, were tested in a
completely randomized design with three replicates. We selected
the two best strains of… More >
Open Access
ARTICLE
Hernandez-Trejo A1, B Estrada-Drouaillet1, JA López-Santillán1, C Rios-Velasco2, SE Varela-Fuentes1, R Rodríguez-Herrera3, E Osorio-Hernández1
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 47-54, 2019, DOI:10.32604/phyton.2019.04611
Abstract The control of Spodoptera frugiperda is based
on synthetic insecticides, so some alternatives are the use of
entomopathogenic fungi (EF) and neem extract. The objective of
the study was to evaluate in vitro effectiveness of native EF and
neem extracts on S. frugiperda larvae. Six EF were identified by
DNA sequencing of ITS regions from three EF (Fusarium solani,
Metarrhizium robertsii, Nigrospora spherica and Penicillium
citrinum). They were evaluated in concentrations of 1 × 10⁸ spores/
mL. In addition, a second bioassay was carried out evaluating
only F. solani, M. robertsii and N. sphaerica and the addition
of vegetable oil.… More >
Open Access
ARTICLE
Chengcheng Li1, Chan Zhou2, Yunfei Yang1
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 55-61, 2019, DOI:10.32604/phyton.2019.04577
Abstract Ramet modules in a certain population differ in terms
of functions, which accounts for different contributions of the same
ramets. Shortening heading time brings about different contributions
of such modules. Ramets heading one after another were treated as a
continuum in respective cohorts of Elymus cylindricus aged two. The
reproductive ramets that head earlier were marked with tags every
four days during the whole heading stage from the beginning to the
end, after which all the labeled ramets at the maturity period were
gathered. The results showed that, the height and biomass of ramets,
the length and biomass of inflorescences,… More >
Open Access
ARTICLE
Ozturk M1, S Gucel2, V Altay3, MSA Ahmad4, MY Ashraf5, M Ashraf6
Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 63-68, 2019, DOI:10.32604/phyton.2019.04574
Abstract This paper presents the work conducted on the
chemical constituents of some common and widely distributed
halophyte taxa from Cyprus with the aim that these studies will
help in the evaluation of halophytes for different economical
purposes. The plant species of Crithmum maritimum L., Limbarda
crithmoides (L.) Dumort, Atriplex portulacoides L., Salsola kali L.,
Atriplex halimus L., Limonium oleifolium Mill., L. meyeri (Boiss.)
Kuntze; and Tetraena alba (L.f.) Beier & Thulin were collected
in the middle of July. The shoot tissue and leaf samples were
collected from the natural habitats and left for drying under air
circulation followed by placing… More >
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