Sentences with word «psyllid»

Researchers participate in a video conference to discuss their progress in annotating the Asian citrus psyllid genome.

Their theory is supported by their discovery that the levels of CLas in psyllid nymphs are strongly correlated with the levels of W. pipientis, meaning that the nymphs that let more Wolbachia in have also let in more CLas.

Since 2005, the bacterium Candidatus liberibacter, spread by Asian psyllid bugs, has ravaged orange and grapefruit trees in Texas, California and Florida, producing splotchy leaves and misshapen fruit.

Combining «omics and microscopy to visualize interactions between the Asian citrus psyllid vector and the Huanglongbing pathogen Candidatus Liberibacter asiaticus in the insect gut

In their study, Mann and Heck show that in psyllid nymphs, Wolbachia and CLas reside within the same cells.

It's a bacterial disease that is primarily spread by two species of psyllid insects.

Two West Australian farmers say they have each lost more than $ 1 million and have been forced to downsize in the 12 months since the tomato potato psyllid was discovered near Perth.

An important clue lies in how psyllids interact with symbiotic bacteria in its gut, especially Wolbachia pipientis.

«We now have a foothold in our understanding of a molecular difference between nymph and adult psyllids in their guts, which CLas exploits to gain entry into the insect vector,» said Heck, who is lead investigator for the project.

In their recent publication, the researchers report a much different response in the young psyllid nymphs.

This discovery of smell sans glomeruli echoes a recent one in carrot psyllid bugs, and together, they may open a new view into how olfactory structures are organized, says Joshua Martin, a biologist at Case Western Reserve University in Cleveland, Ohio, who was not involved with the research.

160,000 Number of base pairs in the smallest known cellular genome, belonging to the bacterium Carsonella ruddii, which lives symbiotically inside insects called psyllids (it does not have the genes required to survive on its own).

Runner up: Danielle Dixon, Mueller / Cilia labs, «Elucidating genetic variation in «Candidatus Liberibacter asiaticus» transmission between Asian citrus psyllid isofemale lines»

Citrus Psyllid program.

Dicks estimates that citrus greening — which is spread by the Asian citrus psyllid — cut Florida's citrus production by half over the last 10 years.

Tiny Asian psyllid bugs (right) are responsible for spreading bacteria that harm U.S. citrus trees (left).

California Citrus Mutual is praising the addition of $ 2.5 million to the state's budget to battle Asian citrus psyllids and the huanglongbing disease they can spread.

Florida citrus growers have had to contend with citrus greening, a disease spread by a small invasive insect called the Asian citrus psyllid.

Thanks to the efforts made in recent years by California's agricultural agencies and citrus industry at large, most of us have already received sufficient information about the Asian Citrus Psyllid.

It's the Asian citrus psyllid — smaller than a grain of rice, but big enough to possibly destroy Florida's citrus industry.

But the culprit spreading the disease is probably the Asian citrus psyllid, an aphid - size insect first sighted in Florida in 1998.

«We hope that BA and other similar chemicals we have in our portfolio will be able to work against the Asian citrus psyllid, Mediterranean fruit flies, whiteflies and other flies that can damage fruits and crops,» Ray said.

But instead of such a labor - intensive procedure, Hall and his team opted to let the psyllids do the work for them, mimicking nature in the process.

Citrus greening disease, also known as Asiatic huanglongbing (HLB), is spread by the Asian citrus psyllid (Diaphorina citri).

Since the psyllid lays its eggs on emerging leaves, Hall and his partners decided to see if flush played a role in disease transmission and if it would impact experimental infection.

The reproductive cycle of the psyllid is closely tied to flush, according to the authors, and so is the rate at which the psyllids infect citrus with the bacterium.

The greening disease bacterium first enters a citrus tree via the tiny Asian Citrus Psyllid.

«We are also working with two other natural enemies, a psyllid and a defoliating weevil, which should further reduce Brazilian peppertree growth and reproduction in Florida.»

Although this link remains to be tested directly, understanding its mechanism could yield an important target for disrupting the psyllid - CLas interaction.

Published in Infection and Immunity, they present a possible mechanism for how CLas can infect its psyllid vector.

With the long - term goal to disrupt this interaction, researchers in the Heck lab have focused on an important point: not all psyllids are equal in their ability to spread CLas.

These symptoms are associated with a bacterium called «Candidatus Liberibacter asiaticus,» referred to as CLas for short, which is spread from tree to tree by its tiny insect vector, the Asian citrus psyllid (Diaphorina citri).

«Answering why is one of our next steps because it may give us a way to control the psyllid's ability to spread the bacteria.»

The bacteria are sucked up when a psyllid feeds on an infected tree, replicate inside the insect, and then infect healthy trees as the psyllid feeds throughout a grove.

To effectively be spread by psyllids, CLas must pass through the cells lining the insect's gut.

«There are still many unanswered questions about CLas, how it is acquired and transmitted via the Asian citrus psyllid and how it causes the disease,» continued Dreyer.

Researchers developed a call that effectively mimics the citrus psyllid's mating song, which could be a weapon against a devastating crop scourge.

The bacterium believed to cause citrus greening disease creates multiple changes in both the Asian citrus psyllid that carries it and the beneficial bacteria that live within the insect.

But before they can figure out a way to disrupt the insect's transmission of the bacterium, they need a starting point, namely, a list of potential genes to target on the psyllid genome.

They are gearing up to publish their first «release» of the official gene set as a collaborative paper, which will be a vital resource in finding a way to stop the psyllid from spreading the citrus greening pathogen.

The psyllid has approximately 20,000 potential genes — an impossible number to complete — but the group will annotate as many as possible.

Each week, a group of students, postdocs and volunteer expert annotators from the insect research community gather on a video conference to review their progress in identifying and assigning a function to genes found in the psyllid genome.

Scientists nationwide and around the globe are working together to make sense of the genome of the Asian citrus psyllid — an insect that is spreading a bacterium that is devastating citrus crops — and they aren't letting geography get in their way.

They will annotate immunity - related genes first, with the ultimate goal of controlling the psyllid by weakening its immune system.

Associated with a bacteria that is spread by the Asian citrus psyllid, the infection results in blotchy mottling of leaves, stunting of shoots, gradual death of branches, and small, deformed fruits with bitter juice.