Beneficial plant pathogens in horticulture

Malešević, Marina (2010) Beneficial plant pathogens in horticulture. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

Tulips as well as poinsettias have enchanted humans with their beauty for many centuries. The fact that they owe this beauty to pathogens which we otherwise associate with negative impact on plants is fascinating. Viruses and phytoplasmas are important plant phatogens as they are responsible for diseases in hundreds of plant species worldwide. By infecting the tulips, viruses, especially tulip breaking virus, cause irregular distribution of anthocyanins, resulting in colour breaking. The same virus causes plant degeneration, which forced tulip cultivators to develop hybridization techniques so they could still have multicoloured flowers of tulips growing on a vital plant. Christmas star is another example of how pathogens, in this case poinsettia phytoplasma, can make a positive impact on cultivating plants and on scientific research about them as well. Phytoplasma turns a straight and tall host tree into a compact-sized plant with a multicoloured canopy. Apart from stated above, there are some other useful pathogens like smut from Ustilago genus. Tulip and poinsettia started their historical development as a currency for merchandise exchange or in rituals. Today they are very popular among admirers of decorative plants. To commercial cultivators these plants generate millions in income. This proves that plant pathogens can be important and especially usefull in horticulture.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Mareković, Sara
Date: 2010
Number of Pages: 16
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 01 Dec 2014 10:33
Last Modified: 01 Dec 2014 10:33
URI: http://digre.pmf.unizg.hr/id/eprint/3408

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