Results 161 to 170 of about 1,088,744 (389)

Attraction of cabbage stem flea beetle (Psylliodes chrysocephala) to host plant odors

open access: yesPest Management Science, EarlyView.
Oilseed rape (Brassica napus, OSR) cultivation in Europe is threatened by the cabbage stem flea beetle (Psylliodes chrysocephala, CSFB). Limited management options due to resistance and environmental concerns necessitate innovative control strategies. This study explores CSFB responses to volatile organic compounds (VOCs) emitted by host and non‐host ...
Daniel Rüde   +3 more
wiley   +1 more source

The pollen tube clear zone: clues to the mechanism of polarized growth.

open access: yesJournal of Integrative Plant Biology, 2015
Pollen tubes usually exhibit a prominent region at their apex called the "clear zone" because it lacks light refracting amyloplasts. A robust, long clear zone often associates with fast growing pollen tubes, and thus serves as an indicator of pollen tube
P. K. Hepler, L. J. Winship
semanticscholar   +1 more source

Persistent Symmetry Frustration in Pollen Tubes

open access: yesPLoS ONE, 2012
Pollen tubes are extremely rapidly growing plant cells whose morphogenesis is determined by spatial gradients in the biochemical composition of the cell wall. We investigate the hypothesis (MP) that the distribution of the local mechanical properties of the wall, corresponding to the change of the radial symmetry along the axial direction, may lead to ...
Pietruszka, Mariusz   +2 more
openaire   +7 more sources

Complementarity between Orius predators improves control of foliar and flower pests

open access: yesPest Management Science, EarlyView.
Orius predators are commonly used against thrips in many crops. Certain species are suggested to be more effective against flower pests, while others may control effectively foliar pests. Here, we show that Orius species combinations may complement each other and effectively control both flower and foliar pests on gerbera.
Angelos Mouratidis   +3 more
wiley   +1 more source

Glycosidases in pear pollen tube development [PDF]

open access: yes, 2017
During the in vitro germination of pear pollen, several hydrolases were released into the medium. They were apparently eluted from the pollen grain, since the activity was the same when germination was inhibited. These enzymes, once released, had no role
Matile, Ph, Rosenfield, C.-L
core  

Induced allopatry as main mechanism explaining trap catch reduction in low dose mating disruption trials on the strawberry pest Acleris comariana (Lepidoptera: Tortricidae)

open access: yesPest Management Science, EarlyView.
This study evaluated pheromone‐based mating disruption of the strawberry pest Acleris comariana (Lepidoptera: Tortricidae). In treated crop areas males were more attracted to the dispensers than to the trap lures and aggregated near such dispensers, explaining the low catches in traps in these areas as an effect of competitive disruption via induced ...
Glenn Peter Svensson   +5 more
wiley   +1 more source

Next‐generation sequencing sheds new light on a major lineage of Acanthaceae, clarifying previously uncertain relationships in Barlerieae

open access: yesTAXON, EarlyView.
Abstract The Acanthaceae tribe Barlerieae is an understudied lineage that consists of ca. 500 species, many of which are rare and range restricted. Though understudied, it is clear that many species play vital roles in tropical ecosystems, including supporting a wide range of pollinators and herbivores. The tribe contains 13 genera, the two largest and
Robert Comito   +3 more
wiley   +1 more source

MAA3 (MAGATAMA3) Helicase Gene is Required for Female Gametophyte Development and Pollen Tube Guidance in Arabidopsis thaliana [PDF]

open access: yes, 2017
The female gametophyte plays a central role in the sexual reproduction of angiosperms. We previously isolated the maa3 (magatama3) mutant of Arabidopsis thaliana, defective in development of the female gametophyte, micropylar pollen tube guidance, and ...
Ishiguro, Sumie   +3 more
core  

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