UNLABELLED Root Knot nematode (RKN; Meloidogyne spp.) is one of the most devastating parasites that infect the roots of hundreds of plant species. RKN cannot live independently from their hosts and are the biggest contributors to the loss of the world's primary foods. RNAi gene silencing studies have demonstrated that there are fewer galls and galls are smaller when RNAi constructs targeted to ...

Tomato (Solanum lycopersicum L.) is among the most valuable agricultural products, but Meloidogyne spp. (root-knot nematode) infestations result in serious crop losses. In tomato, resistance to root-knot nematodes is controlled by the gene Mi-1, but heat stress interferes with Mi-1-associated resistance. Inconsistent results in published field and greenhouse experiments led us to test the effec...

Plant-parasitic root-knot nematodes induce the formation of giant cells within the plant root, and it has been recognized that auxin accumulates in these feeding sites. Here, we studied the role of the auxin transport system governed by AUX1/LAX3 influx proteins and different PIN efflux proteins during feeding site development in Arabidopsis thaliana roots. Data generated via promoter-reporter ...

In addition to pollinator fig wasps, there are several non-pollinating fig wasps associated with monoecious Ficus sp. In order to understand how pollinator fig wasps and non-pollinating fig wasps are distributed across the same syconium, the spatial distribution of fig wasps associated with Ficus altissima and F. benjamina were compared using the pedicle lengths of galls containing each species...

ABSTRACT Galls are structures of vegetal tissue modified by several biological agents, mainly dipterans the Cecidomyiidae family. The galls indicators gall inducers’ presence, because species-specific interaction between inducer and its host plant species. aim this study was to expand geographical distribution cecidomyiids – usually known only type-locality in species Andira Lam. (Fabaceae) dis...

Craigie reported for the first time the occurrence of heterothallism in a rust fungus, Puccinia helianthi Schwein.,2) and stated that when two basidiospores of opposite sex, "+" and "-", are sown close together on a sunflower leaf so that the pustules arising from the two infections soon coalesce, the two monosporous mycelia come into contact, fuse together, and give rise to normal binucleate a...

The response of three larval–pupal parasitoids, Diachasmimorpha longicaudata (Ashmead), Diachasmimorpha tryoni (Cameron), and Tetrastichus giffardianus Silvestri, to the Hamakua pamakani gall fly, Procecidochares alani L., was determined in the laboratory. We also observed responses of these parasitoids to their normal rearing hosts, Bactrocera dorsalis (Hendel) andCeratitis capitata (Weidemann...

Many hypotheses have been proposed to explain diversity patterns of galling insects. However, there are contradictory evidences on the evolutionary and ecological factors responsible for the trends. Furthermore, questions such as arthropod seasonality, sampling sufficiency and sampling team experience have been almost ignored. This study records galling arthropod diversity while paying attentio...

This study inventoried and characterized the richness of galling insects based on gall morphotypes their host plants in two Cerrado sensu stricto areas Caetite municipality Bahia State, Brazil, to aid identification plants, as well contribute knowledge conservation local biodiversity. The survey was conducted Moita dos Porcos archaeological site Joao Barroca Farm site, adopting random walking m...

This paper reports physicochemical studies in fungal infected galls of Pongamia pinnata. The parameters assayed were Total ash, acid insolubility and water solubility values and extractive values (Alcohol, water and petroleum ether). Fungal infected galls showed significantly higher value of ash, acid insolubility and low water solubility and high extractive values (petroleum ether and water) w...