Henry López-López¹, Nancy Ruiz-Lau², Rocío Meza-Gordillo¹, Víctor Manuel Ruiz-Valdiviezo¹, Joseph Galthier Robledo-Luchetti¹, Carlos Alberto Lecona-Guzmán¹, Juan José Villalobos-Maldonado¹, Luc Dendooven³, Joaquín Adolfo Montes-Molina^1,*

Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1235-1255, 2023, DOI:10.32604/phyton.2023.025716 - 06 January 2023

Abstract The objective of this work was to evaluate the effect of Beauveria bassiana (Bb 1205) on controlling Fusarium oxysporum f. sp. lycopersici (Fol 17108) in tomato plants in greenhouse conditions. Inoculation of Bb 1205 was the most promising among the agronomic variables and expression of the activity of the enzymes β-1,3-glucanases and chitinases. Inoculation of Bb 1205 occurred at a concentration of 1 × 10⁸ conidia·mL⁻¹, which was administered onto the leaves, directly into the soil and via injection. Infection with Fol 17108 occurred with 1 × 10⁶ spores·mL⁻¹, which were added directly to the soil. Spectrophotometry was used for measuring agronomic… More >

Adnan Shakeel^*, Abrar Ahmad Khan, Mohammad Haris

Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 205-215, 2020, DOI:10.32604/phyton.2020.08922 - 22 April 2020

Abstract Root-knot nematodes being omnipresent in agricultural and horticultural soils are tallied among the most important economic pathogens around the world. For successful parasitism, these nematodes use various strategies to control and manipulate the host plant’s cell machinery. These strategies include the molecular mimicry of some host genes by some nematode secreted effector proteins, secretion of cell wall digesting enzymes and other effector proteins that are responsible for the suppression of defence by the host plant. All these secretions which are released through the stylet, contribute to the formation of specialized feeding sites or giant cells. More >

Ávila-Rodríguez V¹, CA Vacio-Fraga¹, U Nava-Camberos², C Márquez-Hernández¹, C García de la Peña¹, V Olalde-Portugal³, JL García-Hernández²

Phyton-International Journal of Experimental Botany, Vol.85, pp. 249-255, 2016, DOI:10.32604/phyton.2016.85.249

Abstract Pecan Carya illinoinensis (Wang.) K. Koch is one of the most important crops in northern Mexico. In the Comarca Lagunera, during 2013, the pecan acre age was 7075 ha, a nut production of 8648 ton, and a value of US$ 29.9 million (US$ 4230/ha). The aphids Monellia caryella Fitch., Monelliopsis pecanis Bissell and Melanocallis caryaefoliae Davis (Hemiptera: Aphididae) are among the most important insect pests associated with the pecan. The objectives of this study were to identify the species of aphids, determine their population dynamics and parasitism, in pecan orchards with different insect pest management programs, in the Comarca… More >

DANIELA DE OLIVEIRA PINHEIRO*, HÉLIO CONTE**, ELISA APARECIDA GREGÓRIO*

BIOCELL, Vol.32, No.1, pp. 61-67, 2008, DOI:10.32604/biocell.2008.32.061

Abstract Diatraea saccharalis, the main pest of sugarcane, has been controlled by Cotesia flavipes. Very little is known about the effect of parasitism on the host organs, including the midgut. The Lepidoptera midgut epithelium is composed of columnar, goblet, regenerative, and endocrine cells. Spherites have been described in columnar and regenerative cells of several Lepidoptera species, and presented a lot of functional meaning. We identified spherites in the midgut epithelial cells of non-parasitized D. saccharalis larvae analyzed the effect of parasitism on spherite morphology and distribution along the length of the midgut. Midgut fragments of both non-parasitized and parasitized… More >

C. DAMBORENEA*, F. BRUSA*, A. PAOLA**

BIOCELL, Vol.30, No.3, pp. 457-468, 2006, DOI:10.32604/biocell.2006.30.457

Abstract Pomacea canaliculata is a common gastropod in freshwater habitats from Central and Northern Argentina, extending northwards into the Amazon basin. Several Platyhelminthes have been reported associated to P. canaliculata, sharing an intimate relationship with this gastropod host. The objectives of this study were to describe the symbiotic species assemblages associated to P. canaliculata in the study area, and to disclose differences among them. Samples were taken in three typical small streams and one artificial lentic lagoon, all connected with the Río de la Plata estuary. The 81.53% were infested with different symbiotic (sensu lato) species. Among the Platyhelminthes, the… More >