TY  - CONF
AU  - Mačukanović-Jocić, Marina
AU  - Rančić, Dragana
AU  - Terzić, Maja
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6769
AB  - In order to contribute to palynological studies of cultivated plants in Serbia, micromorphological
features of pollen grains of Lactuca sativa L. (Asteraceae) were examined by both, light microscopy
(LM) and scanning electron microscopy (SEM). Morphological parameters, such as grain size and
shape, apertures and exine ornamentation were described. The morphometric data such as length of
polar axis (P), length of equatorial axis (E), P/E ratio, lacunae diameter, echinae size, and thickness
of exine excluding echinae were noted. Pollen grain were found to be isopolar, radially symmetrical,
medium-sized, oblate-spheroidal in shape (P/E = 0.94), sub-circular in equatorial view, and hexagonal
in polar view with straight sides in outline. The length of the polar axis (P) is 32.6 ± 3.7 μm and of the
equatorial diameter (E) 34.8 ± 2.7 μm. The pollen grain is 3-zonocolporate. Each compound aperture
consists of ectoaperture which is a meridionally elongated colpus with rounded ends, and pore-shaped
endoaperture. Exine ornamentation is echinolophate. Lophate (fenestrate) pollen grains, typical for
Asteraceae, are characterized by number of lacunae that appear as large window-like spaces, a depressed
area lacking ectexine. Each lacuna is surrounded by a system of echinate ridges. Lettuce pollen grains
have 15 lacunae, 3 poral, 6 abporal and 6 paraporal (polar regions are without lacunae, small, reduced
to triradiate ridge). The poral lacuna communicating with adjacent abporal lacunae via interlacunar
gaps is observed rounded in shape. Paraporal lacunae, lying in the mesocolpial region adjacent to one
side of an equatorial ridge, are pentagonal. Abporal lacunae are rounded or angular, broad towards the
pole. Average lacuna diameter is 10.8 ± 2.5 μm. Lophae (ridges) are with one row of echines that are
1.9 ± 0.3 μm long, pointed and some are curved. The еctexine thickness excluding echines, measured
under LM, averaged 5.7 ± 0.7 µm.
PB  - University of Belgrade, Faculty of Agriculture, Serbia
C3  - XI Симпозијум сa међунaродним учешћем "Иновaције у рaтaрској и повртaрској производњи"
T1  - Micromorphology of lettuce (Lactuca sativa L.) pollen grains
EP  - 91
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6769
ER  - 

@conference{
author = "Mačukanović-Jocić, Marina and Rančić, Dragana and Terzić, Maja",
year = "2023",
abstract = "In order to contribute to palynological studies of cultivated plants in Serbia, micromorphological
features of pollen grains of Lactuca sativa L. (Asteraceae) were examined by both, light microscopy
(LM) and scanning electron microscopy (SEM). Morphological parameters, such as grain size and
shape, apertures and exine ornamentation were described. The morphometric data such as length of
polar axis (P), length of equatorial axis (E), P/E ratio, lacunae diameter, echinae size, and thickness
of exine excluding echinae were noted. Pollen grain were found to be isopolar, radially symmetrical,
medium-sized, oblate-spheroidal in shape (P/E = 0.94), sub-circular in equatorial view, and hexagonal
in polar view with straight sides in outline. The length of the polar axis (P) is 32.6 ± 3.7 μm and of the
equatorial diameter (E) 34.8 ± 2.7 μm. The pollen grain is 3-zonocolporate. Each compound aperture
consists of ectoaperture which is a meridionally elongated colpus with rounded ends, and pore-shaped
endoaperture. Exine ornamentation is echinolophate. Lophate (fenestrate) pollen grains, typical for
Asteraceae, are characterized by number of lacunae that appear as large window-like spaces, a depressed
area lacking ectexine. Each lacuna is surrounded by a system of echinate ridges. Lettuce pollen grains
have 15 lacunae, 3 poral, 6 abporal and 6 paraporal (polar regions are without lacunae, small, reduced
to triradiate ridge). The poral lacuna communicating with adjacent abporal lacunae via interlacunar
gaps is observed rounded in shape. Paraporal lacunae, lying in the mesocolpial region adjacent to one
side of an equatorial ridge, are pentagonal. Abporal lacunae are rounded or angular, broad towards the
pole. Average lacuna diameter is 10.8 ± 2.5 μm. Lophae (ridges) are with one row of echines that are
1.9 ± 0.3 μm long, pointed and some are curved. The еctexine thickness excluding echines, measured
under LM, averaged 5.7 ± 0.7 µm.",
publisher = "University of Belgrade, Faculty of Agriculture, Serbia",
journal = "XI Симпозијум сa међунaродним учешћем "Иновaције у рaтaрској и повртaрској производњи"",
title = "Micromorphology of lettuce (Lactuca sativa L.) pollen grains",
pages = "91-90",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6769"
}

Mačukanović-Jocić, M., Rančić, D.,& Terzić, M.. (2023). Micromorphology of lettuce (Lactuca sativa L.) pollen grains. in XI Симпозијум сa међунaродним учешћем "Иновaције у рaтaрској и повртaрској производњи"
University of Belgrade, Faculty of Agriculture, Serbia., 90-91.
https://hdl.handle.net/21.15107/rcub_agrospace_6769

Mačukanović-Jocić M, Rančić D, Terzić M. Micromorphology of lettuce (Lactuca sativa L.) pollen grains. in XI Симпозијум сa међунaродним учешћем "Иновaције у рaтaрској и повртaрској производњи". 2023;:90-91.
https://hdl.handle.net/21.15107/rcub_agrospace_6769 .

Mačukanović-Jocić, Marina, Rančić, Dragana, Terzić, Maja, "Micromorphology of lettuce (Lactuca sativa L.) pollen grains" in XI Симпозијум сa међунaродним учешћем "Иновaције у рaтaрској и повртaрској производњи" (2023):90-91,
https://hdl.handle.net/21.15107/rcub_agrospace_6769 .

TY  - CONF
AU  - Mačukanović-Jocić, Marina
AU  - Terzić, Maja
AU  - Rančić, Dragana
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6819
AB  - Proučavanje morfologije polena je važan izvor informacija u taksonomskim
istraživanjima i utvrđivanju srodnosti na nivou familije, roda ili vrste, pa je postalo deo
multidisciplinarnog pristupa u sistematici i evoluciji biljaka. Palinolomorfološka
istraživanja imaju značajnu ulogu i u primenjenim naukama kao što su
melisopalinologija, aeropalinologija, entomopalinologija, paleopalinologija, itd. U tu
svrhu neophodno je formirati atlas polena kojeg čine mikrofotografije koje detaljno
prikazuju osnovne morfološke karakteristike polenovih zrna biljaka nekog regiona.
Kao doprinos atlasu polena flore Srbije cilj ovog istraživanja bio je palinomorfološko
proučavanje korovske vrste Malva sylvestris L. (fam. Malvaceae) uz pomoć svetlosne
mikroskopije (SM) i skenirajuće elektronske mikroskopije (SEM). Za SM analizu
polenova zrna iz antera cvetnih pupoljaka posmatrana su u glicerinskom gelu. Za
SEM analizu suva polenova zrna su naparena zlatom (u aparatu BAL-TEC SCD 005
Sputter Coater, 100 sekundi na 30 mA) i posmatrana mikroskopom JEOL JSM-6390
LV (napon 20 kV). Merenja su izvršena na uzorku od 30 zrna za svaki morfološki
karakter. Ispitivane su sledeće palinomorfološke karakteristike: simetrija, polarnost,
veličina, oblik, ornamentacija, aperturacija i debljina egzine. Polenova zrna M.
sylvestris su radijalno simetrična, apolarna i sferična. Prečnik zrna prosečno iznosi
111,3±11,1 µm, što ih svrstava u klasu veoma velikih. Egzina je debljine oko 2,8±0,7
µm. Aperture su tipa pora, a s obzirom na njihov broj i položaj, tj. raspored, zrna su
polipantoporatna. Pore su manje-više kružnog oblika, prečnika 3,6±0,7 µm.
Ornamentacija egzine je ehinatna. Tektum je prekriven konusnim zašiljenim ehinama,
koje su ravnomerno raspoređene po površini. Ehine su monomorfne, ali veoma
varijabilne dužine, pri čemu je prosečna veličina najdužih 6,8±1,0 µm. Broj ehina na
površini od 40x40 µm iznosi u proseku 23,8±2,8. Osim doprinosa taksonomiji,
palinomorfološki podaci ove korovske vrste mogu biti korisni i u ispitivanjima ekološke
uloge i efikasnosti oprašivača, utvrđivanju botaničkog i geografskog porekla kao i
XI Kongres o korovima i savetovanje o herbicidima i regulatorima rasta
11th Weed Science Congress and Symposium on Herbicides and Growth Regulators
66
autentičnosti meda, otkrivanju prisustva i determinaciji alergenog polena u cilju
određivanje kvaliteta vazduha, itd.
PB  - Herbološko društvo Srbije
C3  - XI Kongres o korovima i Savetovanje o herbicidima i regulatorima rasta
T1  - Morfološke karakteristike polenovih zrna crnog sleza (Malva sylvestris L.)
SP  - 65
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6819
ER  - 

@conference{
author = "Mačukanović-Jocić, Marina and Terzić, Maja and Rančić, Dragana",
year = "2021",
abstract = "Proučavanje morfologije polena je važan izvor informacija u taksonomskim
istraživanjima i utvrđivanju srodnosti na nivou familije, roda ili vrste, pa je postalo deo
multidisciplinarnog pristupa u sistematici i evoluciji biljaka. Palinolomorfološka
istraživanja imaju značajnu ulogu i u primenjenim naukama kao što su
melisopalinologija, aeropalinologija, entomopalinologija, paleopalinologija, itd. U tu
svrhu neophodno je formirati atlas polena kojeg čine mikrofotografije koje detaljno
prikazuju osnovne morfološke karakteristike polenovih zrna biljaka nekog regiona.
Kao doprinos atlasu polena flore Srbije cilj ovog istraživanja bio je palinomorfološko
proučavanje korovske vrste Malva sylvestris L. (fam. Malvaceae) uz pomoć svetlosne
mikroskopije (SM) i skenirajuće elektronske mikroskopije (SEM). Za SM analizu
polenova zrna iz antera cvetnih pupoljaka posmatrana su u glicerinskom gelu. Za
SEM analizu suva polenova zrna su naparena zlatom (u aparatu BAL-TEC SCD 005
Sputter Coater, 100 sekundi na 30 mA) i posmatrana mikroskopom JEOL JSM-6390
LV (napon 20 kV). Merenja su izvršena na uzorku od 30 zrna za svaki morfološki
karakter. Ispitivane su sledeće palinomorfološke karakteristike: simetrija, polarnost,
veličina, oblik, ornamentacija, aperturacija i debljina egzine. Polenova zrna M.
sylvestris su radijalno simetrična, apolarna i sferična. Prečnik zrna prosečno iznosi
111,3±11,1 µm, što ih svrstava u klasu veoma velikih. Egzina je debljine oko 2,8±0,7
µm. Aperture su tipa pora, a s obzirom na njihov broj i položaj, tj. raspored, zrna su
polipantoporatna. Pore su manje-više kružnog oblika, prečnika 3,6±0,7 µm.
Ornamentacija egzine je ehinatna. Tektum je prekriven konusnim zašiljenim ehinama,
koje su ravnomerno raspoređene po površini. Ehine su monomorfne, ali veoma
varijabilne dužine, pri čemu je prosečna veličina najdužih 6,8±1,0 µm. Broj ehina na
površini od 40x40 µm iznosi u proseku 23,8±2,8. Osim doprinosa taksonomiji,
palinomorfološki podaci ove korovske vrste mogu biti korisni i u ispitivanjima ekološke
uloge i efikasnosti oprašivača, utvrđivanju botaničkog i geografskog porekla kao i
XI Kongres o korovima i savetovanje o herbicidima i regulatorima rasta
11th Weed Science Congress and Symposium on Herbicides and Growth Regulators
66
autentičnosti meda, otkrivanju prisustva i determinaciji alergenog polena u cilju
određivanje kvaliteta vazduha, itd.",
publisher = "Herbološko društvo Srbije",
journal = "XI Kongres o korovima i Savetovanje o herbicidima i regulatorima rasta",
title = "Morfološke karakteristike polenovih zrna crnog sleza (Malva sylvestris L.)",
pages = "65",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6819"
}

Mačukanović-Jocić, M., Terzić, M.,& Rančić, D.. (2021). Morfološke karakteristike polenovih zrna crnog sleza (Malva sylvestris L.). in XI Kongres o korovima i Savetovanje o herbicidima i regulatorima rasta
Herbološko društvo Srbije., 65.
https://hdl.handle.net/21.15107/rcub_agrospace_6819

Mačukanović-Jocić M, Terzić M, Rančić D. Morfološke karakteristike polenovih zrna crnog sleza (Malva sylvestris L.). in XI Kongres o korovima i Savetovanje o herbicidima i regulatorima rasta. 2021;:65.
https://hdl.handle.net/21.15107/rcub_agrospace_6819 .

Mačukanović-Jocić, Marina, Terzić, Maja, Rančić, Dragana, "Morfološke karakteristike polenovih zrna crnog sleza (Malva sylvestris L.)" in XI Kongres o korovima i Savetovanje o herbicidima i regulatorima rasta (2021):65,
https://hdl.handle.net/21.15107/rcub_agrospace_6819 .

TY  - JOUR
AU  - Rančić, Dragana
AU  - Pećinar, Ilinka
AU  - Radošević, Radenko
AU  - Terzić, Maja
AU  - Pekić-Quarrie, Sofija
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3697
AB  - The yield of crop plants and fruit growth depends, to a large extent, on the efficiency of the vascular tissue, in optimal conditions, as well as in stress conditions. Most of the material on which fruit growth depends is transported from the stem into the fruit through the fruit pedicel, by the xylem and phloem, so the anatomy of fruit pedicel is an important factor in understanding water transport from stem to fruit. This paper provides an overview of micro-morphological research of the tomato fruit pedicel using various methods in the Laboratory for Functional Anatomy of Crop Plants at the Faculty of Agriculture, Belgrade University. Such an approach is important for understanding transport mechanisms as important physiological processes occurring during fruit growth.
AB  - Prinos gajenih biljaka i rast plodova u velikoj meri zavisi od efikasnosti provodnog sistema, kao u optimalnim uslovima, tako i u uslovima vodnog deficita. Većina materija od kojih zavisi rast plodova, transportuje se u plod kroz peteljku ploda ksilemom i floemom, pa je tako anatomija peteljke važan faktor za razumevanje transporta vode i asimilata. U ovom radu dat je pregled mikromorfoloških istraživanja peteljki plodova paradajza primenom različitih metoda. Ovakav pristup je važan za razumevanje transportnih mehanizama kao važnih činilaca fizioloških procesa značajnih za rast i sazrevanje ploda.
PB  - Univerzitet u Beogradu - Biološki fakultet - Institut za botaniku i botaničku baštu "Jevremovac", Beograd
T2  - Botanica Serbica
T1  - Functional anatomy of vascular tissue as a tool to understand transport of water and assimilates into developing fruit
T1  - Značaj funkcionalne anatomije u istraživanjima transporta vode i asimilata u plodove u razvoju
EP  - 176
IS  - 2
SP  - 169
VL  - 39
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3697
ER  - 

@article{
author = "Rančić, Dragana and Pećinar, Ilinka and Radošević, Radenko and Terzić, Maja and Pekić-Quarrie, Sofija",
year = "2015",
abstract = "The yield of crop plants and fruit growth depends, to a large extent, on the efficiency of the vascular tissue, in optimal conditions, as well as in stress conditions. Most of the material on which fruit growth depends is transported from the stem into the fruit through the fruit pedicel, by the xylem and phloem, so the anatomy of fruit pedicel is an important factor in understanding water transport from stem to fruit. This paper provides an overview of micro-morphological research of the tomato fruit pedicel using various methods in the Laboratory for Functional Anatomy of Crop Plants at the Faculty of Agriculture, Belgrade University. Such an approach is important for understanding transport mechanisms as important physiological processes occurring during fruit growth., Prinos gajenih biljaka i rast plodova u velikoj meri zavisi od efikasnosti provodnog sistema, kao u optimalnim uslovima, tako i u uslovima vodnog deficita. Većina materija od kojih zavisi rast plodova, transportuje se u plod kroz peteljku ploda ksilemom i floemom, pa je tako anatomija peteljke važan faktor za razumevanje transporta vode i asimilata. U ovom radu dat je pregled mikromorfoloških istraživanja peteljki plodova paradajza primenom različitih metoda. Ovakav pristup je važan za razumevanje transportnih mehanizama kao važnih činilaca fizioloških procesa značajnih za rast i sazrevanje ploda.",
publisher = "Univerzitet u Beogradu - Biološki fakultet - Institut za botaniku i botaničku baštu "Jevremovac", Beograd",
journal = "Botanica Serbica",
title = "Functional anatomy of vascular tissue as a tool to understand transport of water and assimilates into developing fruit, Značaj funkcionalne anatomije u istraživanjima transporta vode i asimilata u plodove u razvoju",
pages = "176-169",
number = "2",
volume = "39",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3697"
}

Rančić, D., Pećinar, I., Radošević, R., Terzić, M.,& Pekić-Quarrie, S.. (2015). Functional anatomy of vascular tissue as a tool to understand transport of water and assimilates into developing fruit. in Botanica Serbica
Univerzitet u Beogradu - Biološki fakultet - Institut za botaniku i botaničku baštu "Jevremovac", Beograd., 39(2), 169-176.
https://hdl.handle.net/21.15107/rcub_agrospace_3697

Rančić D, Pećinar I, Radošević R, Terzić M, Pekić-Quarrie S. Functional anatomy of vascular tissue as a tool to understand transport of water and assimilates into developing fruit. in Botanica Serbica. 2015;39(2):169-176.
https://hdl.handle.net/21.15107/rcub_agrospace_3697 .

Rančić, Dragana, Pećinar, Ilinka, Radošević, Radenko, Terzić, Maja, Pekić-Quarrie, Sofija, "Functional anatomy of vascular tissue as a tool to understand transport of water and assimilates into developing fruit" in Botanica Serbica, 39, no. 2 (2015):169-176,
https://hdl.handle.net/21.15107/rcub_agrospace_3697 .

TY  - CONF
AU  - Rančić, Dragana
AU  - Pekić-Quarrie, Sofija
AU  - Radošević, Radenko
AU  - Terzić, Maja
AU  - Pećinar, Ilinka
AU  - Stikić, Radmila
AU  - Jansen, Steven
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2359
AB  - The abscission zone in fruit pedicels plays an important role in affecting not only water uptake in the developing fruit, but also in the transport of chemical signals from root to shoot. In order to characterize the hydraulic network of tomato fruit pedicels, we applied various techniques, including light, fluorescence microscopy, electron microscopy, maceration, tissue clearing, and X-ray computed tomography. Because of significant changes in xylem anatomy, the abscission zone in tomato fruit pedicels is illustrated to show a clear reduction in hydraulic conductance. Based on anatomical measurements, the theoretical axial xylem conductance was calculated via the Hagen-Poiseuille law, suggesting that the hydraulic resistance of the abscission zone increases at least two orders of magnitude compared to the pedicel zone near the stem. The advantages and shortcomings of the microscope techniques applied are discussed.
PB  - Springer Wien, Wien
C3  - Protoplasma
T1  - The application of various anatomical techniques for studying the hydraulic network in tomato fruit pedicels
EP  - 31
IS  - 1-4
SP  - 25
VL  - 246
DO  - 10.1007/s00709-010-0115-y
ER  - 

@conference{
author = "Rančić, Dragana and Pekić-Quarrie, Sofija and Radošević, Radenko and Terzić, Maja and Pećinar, Ilinka and Stikić, Radmila and Jansen, Steven",
year = "2010",
abstract = "The abscission zone in fruit pedicels plays an important role in affecting not only water uptake in the developing fruit, but also in the transport of chemical signals from root to shoot. In order to characterize the hydraulic network of tomato fruit pedicels, we applied various techniques, including light, fluorescence microscopy, electron microscopy, maceration, tissue clearing, and X-ray computed tomography. Because of significant changes in xylem anatomy, the abscission zone in tomato fruit pedicels is illustrated to show a clear reduction in hydraulic conductance. Based on anatomical measurements, the theoretical axial xylem conductance was calculated via the Hagen-Poiseuille law, suggesting that the hydraulic resistance of the abscission zone increases at least two orders of magnitude compared to the pedicel zone near the stem. The advantages and shortcomings of the microscope techniques applied are discussed.",
publisher = "Springer Wien, Wien",
journal = "Protoplasma",
title = "The application of various anatomical techniques for studying the hydraulic network in tomato fruit pedicels",
pages = "31-25",
number = "1-4",
volume = "246",
doi = "10.1007/s00709-010-0115-y"
}

Rančić, D., Pekić-Quarrie, S., Radošević, R., Terzić, M., Pećinar, I., Stikić, R.,& Jansen, S.. (2010). The application of various anatomical techniques for studying the hydraulic network in tomato fruit pedicels. in Protoplasma
Springer Wien, Wien., 246(1-4), 25-31.
https://doi.org/10.1007/s00709-010-0115-y

Rančić D, Pekić-Quarrie S, Radošević R, Terzić M, Pećinar I, Stikić R, Jansen S. The application of various anatomical techniques for studying the hydraulic network in tomato fruit pedicels. in Protoplasma. 2010;246(1-4):25-31.
doi:10.1007/s00709-010-0115-y .

Rančić, Dragana, Pekić-Quarrie, Sofija, Radošević, Radenko, Terzić, Maja, Pećinar, Ilinka, Stikić, Radmila, Jansen, Steven, "The application of various anatomical techniques for studying the hydraulic network in tomato fruit pedicels" in Protoplasma, 246, no. 1-4 (2010):25-31,
https://doi.org/10.1007/s00709-010-0115-y . .