Navigation Links
Habitat fragmentation increases vulnerability to disease in wild plants
Date:6/12/2014

Proximity to other meadows increases disease resistance in wild meadow plants, according to a study led by Anna-Liisa Laine at the University of Helsinki. The results of the study, analysing the epidemiological dynamics of a fungal pathogen in the archipelago of Finland, will be published in Science on 13 June 2014.

The study surveyed more than 4,000 Plantago lanceolata meadows and their infection status by a powdery mildew fungus in the land archipelago of Finland. The surveys have continued since 2001, resulting in one of the world's largest databases on disease dynamics in wild plant populations.

"Contrary to expectations of ecological laws, there was less disease in those areas of the landscape that supported dense meadow networks. This suggests that disease resistance has increased in these areas where there's more gene flow between the plant populations. This hypothesis was confirmed in a laboratory study where we measured a higher susceptibility to infection in plants originating from isolated meadows. The results are a powerful demonstration that while plants stand still, their genes don't. Landscape structure strongly impacts how pollen and seed travel, shaping the genetic diversity of local populations," says Laine.

In nature, Laine says, diseases appear to be "between the devil and the deep blue sea" either their host populations are small and fragmented or, when abundant, they have evolved higher levels of disease resistance.

Pathogens and pests are not unique to agricultural environment as wild populations also host diverse pathogen communities. However, devastating epidemics that are characteristic of agricultural pathogens are rarely documented in nature.

According to Laine, the mechanisms that keep diseases "in check" in nature are poorly understood. Most epidemiological research targets the phase of rapid disease spread. However, much could be learned by studying the mechanisms that enable long-term persistence of infection at moderate levels. The Plantago meadow network is ideal for this purpose as typically less than 10 per cent of the meadows are infected.


'/>"/>
Contact: Anna-Liisa Laine
anna-liisa.laine@helsinki.fi
358-407-374-226
Academy of Finland
Source:Eurekalert  

Related biology news :

1. Stanford researchers rethink natural habitat for wildlife
2. Sage grouse losing habitat to fire as endangered species decision looms
3. Dry future climate could reduce orchid bee habitat
4. Discovery by Baylor University researchers sheds new light on the habitat of early apes
5. New maps highlight habitat corridors in the tropics
6. MBL scientists to study coastal waterbird habitats through funding for Obamas Climate Action Plan
7. Climate change will endanger caribou habitat, study says
8. SU biologist develops method for monitoring shipping noise in dolphin habitat
9. Changes to fisheries legislation have removed habitat protection for most fish species in Canada
10. New ocean forecast could help predict fish habitat 6 months in advance
11. Warming Antarctic seas likely to impact on krill habitats
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Habitat fragmentation increases vulnerability to disease in wild plants
(Date:6/3/2016)... June 3, 2016 ... Nepal hat ein ... hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung und ... der Produktion und Implementierung von Identitätsmanagementlösungen. Zahlreiche ... im Januar teilgenommen, aber Decatur wurde als ...
(Date:6/1/2016)... , June 1, 2016 ... in Election Administration and Criminal Identification to Boost Global ... a recently released TechSci Research report, " Global Biometrics ... Region, Competition Forecast and Opportunities, 2011 - 2021", the ... billion by 2021, on account of growing security concerns ...
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... , June 24, 2016 Epic Sciences ... detects cancers susceptible to PARP inhibitors by targeting ... cells (CTCs). The new test has already been ... in multiple cancer types. Over 230 ... damage response pathways, including PARP, ATM, ATR, DNA-PK ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... announce the launch of their brand, UP4™ Probiotics, into Target stores nationwide. The ... is proud to add Target to its list of well-respected retailers. This list ...
(Date:6/23/2016)... -- Houston Methodist Willowbrook Hospital has signed a ... serve as their official health care provider. As ... provide sponsorship support, athletic training services, and most ... athletes and families. "We are excited ... to bring Houston Methodist quality services and programs ...
(Date:6/23/2016)... , June 23, 2016   EpiBiome , a ... $1 million in debt financing from Silicon Valley Bank ... automation and to advance its drug development efforts, as ... facility. "SVB has been an incredible strategic ... services a traditional bank would provide," said Dr. ...
Breaking Biology Technology: