group

2022 Research Team

Slide 2

September 3 2021 by Lazslo Kovacs

Nanoparticle affects on lifeforms

Elements behavior in strange and bizarre ways when they become the size of nanometers. My lab is investing the affects of these behaviors on biological organisms. That way when Nanoparticles are used in business we can be aware of unintended consequences.

Slide 1

September 3 2021 by Lazslo Kovacs

Grapevine, Vitis Vinifera, natural resistance to global warming.

Vitis vinifera, lacks biological resistance to a range of devastating fungal and oomycete diseases. Consequently, viticulturists have to apply fungicides to produce healthy fruit and to achieve desired yields. Disease control measures are costly and several essential fungicides are detrimental to the environment and/or pose a risk to human health.

previous arrowprevious arrow
next arrownext arrow
DSC_0002

2022 Research Team

Slide 1

September 3 2021 by Lazslo Kovacs

Grapevine, Vitis Vinifera natural resistance to global warming.

Vitis vinifera, lacks biological resistance to a range of devastating fungal and oomycete diseases. Consequently, viticulturists have to apply fungicides to produce healthy fruit and to achieve desired yields. Disease control measures are costly and several essential fungicides are detrimental to the environment and/or pose a risk to human health.

Slide 1

September 3 2021 by Lazslo Kovacs

Nanoparticle affects on lifeforms

Elements behavior in strange and bizarre ways when they become the size of nanometers. My lab is investing the affects of these behaviors on biological organisms. That way when Nanoparticles are used in business we can be aware of unintended consequences.

previous arrowprevious arrow
next arrownext arrow

Fundraised by National science foundation

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to

Silver nanoparticles have now a pervasive presence in consumer products and have become commonly detectable pollutants in the environment. It is known that they are taken up by plants and that they reduce photosynthesis, but the mechanism of this impact is yet to be understood. To get an insight into this mechanism, we study the difference in gene expression and photosynthesis between plants exposed to ionic and nanoparticle-formatted silver

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ‘Content here

The Effect of Silver Nanoparticles on life forms

Nanoparticle affects on life forms

Elements behave  in strange and bizarre ways when they become the size of nanometers. My lab is investing the effects of these behaviors on biological organisms. That way when nanoparticles are used in business we can be aware of unintended consequences.

Grapevine Vitis Vinifera natural resistance to Mildew.

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to

Grapevine is the most important deciduous fruit crop in terms of product quantity and value. Viticulture has a great economic potential as it generates high value-added products such as wine, juice, jellies, raisins and table grapes. Furthermore, wine is an important part of the human diet, because of its health-promoting phytochemicals, primarily bioactive polyphenols, and because it holds an esteemed place in most European and New World cultures. The viticulture industry relies predominantly on a single grape species, Vitis vinifera, which lacks biological resistance to a range of devastating fungal and oomycete diseases. Consequently, viticulturists have to apply fungicides to produce healthy fruit and to achieve desired yields. Disease control measures are costly and several essential fungicides are detrimental to the environment and/or pose a risk to human health.

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ‘Content here

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to

Presently, the powdery mildew fungus is controlled by the application of substantial amounts of fungicides. It is becoming increasingly clear that some of these chemicals can harm the environment, pose risk to human health, or become ineffective by the pathogen’s ability to develop fungicide resistance. Dependence on chemical disease control can be alleviated by the cultivation of grape varieties that are resistant to the pathogen. We are working towards this goal by studying the interaction between E. necator and Vitis vinifera in both a compatible an an incompatible interactions. 

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ‘Content here

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to

Nearly all varieties of Vitis vinifera are susceptible to PM. The evolutionary reason for this is that V. vinifera evolved in Eurasia in the absence of selection pressure from PM, which originates from the Americas. Intriguingly, however, a few Eurasian grapevine genotypes offer resistance to this pathogen. One of them is the East Asian species Vitis romanetii, which is used as a source of PM resistance in grape breeding programs. Recently, we have begun studies on a V. vinifera variety which also has partial (but economically significant) level of resistance to PM. This variety, originally from Uzbekhistan, responds to PM infection with the discoloration of epidermal cells and, under certain conditions, the development of chlorotic areas of the leaf where the mildew attempts to grow.

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ‘Content here

Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to

Today, grapes are consumed primarily as fresh fruit, wine or juice. Grapes, however, have also been consumed as an herb for millennia. Recent findings that the berries, particularly their seeds, are a rich source of dietary polyphenols, led to a renaissance in the plant’s herbal use. Today, grapes are consumed primarily as fresh fruit, wine or juice. Grapes, however, have also been consumed as an herb for millennia. Recent findings that the berries, particularly their seeds, are a rich source of dietary polyphenols, led to a renaissance in the plant’s herbal use.

It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using ‘Content here

Polyphenols in Grape Berries

Grapevine Vitis Vinifera natural resistance to global warming.

Grapevine is the most important deciduous fruit crop in terms of product quantity and value. Viticulture has a great economic potential as it generates high value-added products such as wine, juice, jellies, raisins and table grapes. Furthermore, wine is an important part of the human diet, because of its health-promoting phytochemicals, primarily bioactive polyphenols, and because it holds an esteemed place in most European and New World cultures. The viticulture industry relies predominantly on a single grape species, Vitis vinifera, which lacks biological resistance to a range of devastating fungal and oomycete diseases. Consequently, viticulturists have to apply fungicides to produce healthy fruit and to achieve desired yields. Disease control measures are costly and several essential fungicides are detrimental to the environment and/or pose a risk to human health.

Nearly all varieties of Vitis vinifera are susceptible to PM. The evolutionary reason for this is that V. vinifera evolved in Eurasia in the absence of selection pressure from PM, which originates from the Americas. Intriguingly, however, a few Eurasian grapevine genotypes offer resistance to this pathogen. One of them is the East Asian species Vitis romanetii, which is used as a source of PM resistance in grape breeding programs. Recently, we have begun studies on a V. vinifera variety which also has partial (but economically significant) level of resistance to PM. This variety, originally from Uzbekhistan, responds to PM infection with the discoloration of epidermal cells and, under certain conditions, the development of chlorotic areas of the leaf where the mildew attempts to grow.

Resistance to Grape Powdery Mildew

Presently, the powdery mildew fungus is controlled by the application of substantial amounts of fungicides. It is becoming increasingly clear that some of these chemicals can harm the environment, pose risk to human health, or become ineffective by the pathogen’s ability to develop fungicide resistance. Dependence on chemical disease control can be alleviated by the cultivation of grape varieties that are resistant to the pathogen. We are working towards this goal by studying the interaction between E. necator and Vitis vinifera in both a compatible an an incompatible interactions. 

Polyphenols in Grape Berries

Today, grapes are consumed primarily as fresh fruit, wine or juice. Grapes, however, have also been consumed as an herb for millennia. Recent findings that the berries, particularly their seeds, are a rich source of dietary polyphenols, led to a renaissance in the plant’s herbal use.

We are interested in polyphenol biosynthesis in the grape seed. Much is known about the accumulation of various phenylpropanoids in the berries of the cultivated grape species Vitis vinifera, as this species is by far the most dominant source of wine. Little is known, however, about how other grape species differ in the types and quantity of the various phenylpropanoid metabolites. We know, for example, that the grape variety Norton, a quintessential American grapevine (thought to be derived of Vitis aestivalis Michx.), accumulates many more types of anthocyanins in its berry skin than most red-fruited V. vinifera varieties