Anatomske karakteristike listova ocvijeća odabranih kultivara narcise

master's thesis

• Title (english): Anatomical characteristics of perianth in selected daffodil cultivars
• Author: Ivana Caganić Žigić
• Mentor: Tatjana Prebeg (mentor)
• Committee member: Tatjana Prebeg (predsjednik povjerenstva)
• Committee member: Vesna Židovec (član povjerenstva)
• Committee member: Dubravka Dujmović Purgar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Ornamental Plants, Landscape Architecture and Garden Art); Zagreb
• Defense date and country: 2019-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Boja cvjetova primarno ovisi o kvalitativnom i kvantitativnom sastavu pigmenata, no na boju
također mogu utjecati i anatomska građa te razmještaj pigmenata u tkivu latica. U ovom
radu opisane su anatomske karakteristike ocvijeća narcise koje mogu utjecati na njihovu
boju te su uspoređene u kultivara različitih boja cvjetova. Kod istraživanih kultivara narcise,
epidermske stanice su na obje strane tepala i krunica imale lećasto ili blago čunjasto
izbočene vanjske stijenke, dok je unutarnja stijenka bila ravna ili blago konveksna. Mezofil se
sastojao od nekoliko slojeva stanica nepravilnog oblika između kojih su se nalazili veliki
međustanični prostori. Žuti i narančasti tepali i krunice sadržavali su kromoplaste kojima su
bile bogate ne samo epidermske stanice, već i stanice subepiderme, osobito kod krunice.
Subepidermske stanice krunice su prema mezofilu bile čunjasto ili lećasto izbočene što bi
moglo imati važnu ulogu u usmjeravanju svjetlosti prema pigmentima te tako i postizanju
jarkije boje.

Abstract (english)

Flower colour is primarily determined by qualitative and quantitative composition of the
pigments, but may also be affected by petal anatomy and pigment distribution in petal
tissue. In this thesis, anatomical characteristics of daffodil perianth which affect its color
were compared between three cultivars. Epidermal cells on both sides of the tepals and
corona had lens-shaped or slightly conical outer walls, while inner walls was flat or slightly
convex. Mesophyll consisted of several layers of irregularly shaped cells among which were
large intercellular spaces. Yellow and orange tepals and coronas contained chromoplasts,
which were abundant in both epidermises, but also in the subepidermises, especially in the
corona. Subepidermal cells of the corona were towards the mesophyll conical or lenticular in
shape, which could play an important role in directing light towards the pigments and thus
achieving more intense colour.

• Keywords: Narcissus; tepali; krunica; epidermske stanice
• Keywords (english): Narcissus; tepals; corona; epidermal cells
• Language: croatian
• URN:NBN: urn:nbn:hr:204:932920
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2019-10-23 11:46:16