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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F11%3A33118114%21RIV12-MSM-15310___
rdf:type
skos:Concept n6:Vysledek
dcterms:description
A better understanding of somatic embryogenesis in banana (Musa spp.) may provide a practical way to improve regeneration of banana plants. In this study, we applied scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to visualize the ultrastructural changes during somatic embryogenesis of banana (Musa AAA cv. 'Yueyoukang 1'). We also used histological and immunohistochemical techniques with 16 monoclonal antibodies to study the spatial distribution and cellular/subcellular localization of different arabinogalactan protein (AGP) components of the cell wall during somatic embryogenesis. Histological study with periodic acid-Schiff staining documented diverse embryogenic stages from embryogenic cells (ECs) to the late embryos. SEM revealed a mesh-like structure on the surface of proembryos which represented an early structural marker of somatic embryogenesis. TEM showed that ECs were rich in juvenile mitochondria, endoplasmic reticulum and Golgi stacks. Cells in proembryos and early globular embryos resembled ECs, but they were more vacuolated, showed more regular nuclei and slightly more developed organelles. Immunocytochemical study revealed that the signal of most AGP epitopes was stronger in starch-rich cells when compared with typical ECs. The main AGP component in the extracellular matrix surface network of banana proembryos was the MAC204 epitope. Later, AGP immunolabelling patterns varied with the developmental stages of the embryos. These results about developmental regulation of AGP epitopes along with developmental changes in the ultrastructure of cells are providing new insights into the somatic embryogenesis of banana. A better understanding of somatic embryogenesis in banana (Musa spp.) may provide a practical way to improve regeneration of banana plants. In this study, we applied scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to visualize the ultrastructural changes during somatic embryogenesis of banana (Musa AAA cv. 'Yueyoukang 1'). We also used histological and immunohistochemical techniques with 16 monoclonal antibodies to study the spatial distribution and cellular/subcellular localization of different arabinogalactan protein (AGP) components of the cell wall during somatic embryogenesis. Histological study with periodic acid-Schiff staining documented diverse embryogenic stages from embryogenic cells (ECs) to the late embryos. SEM revealed a mesh-like structure on the surface of proembryos which represented an early structural marker of somatic embryogenesis. TEM showed that ECs were rich in juvenile mitochondria, endoplasmic reticulum and Golgi stacks. Cells in proembryos and early globular embryos resembled ECs, but they were more vacuolated, showed more regular nuclei and slightly more developed organelles. Immunocytochemical study revealed that the signal of most AGP epitopes was stronger in starch-rich cells when compared with typical ECs. The main AGP component in the extracellular matrix surface network of banana proembryos was the MAC204 epitope. Later, AGP immunolabelling patterns varied with the developmental stages of the embryos. These results about developmental regulation of AGP epitopes along with developmental changes in the ultrastructure of cells are providing new insights into the somatic embryogenesis of banana.
dcterms:title
Ultrastructural changes and the distribution of arabinogalactan proteins during somatic embryogenesis of banana (Musa spp. AAA cv. ''Yueyoukang 1'') Ultrastructural changes and the distribution of arabinogalactan proteins during somatic embryogenesis of banana (Musa spp. AAA cv. ''Yueyoukang 1'')
skos:prefLabel
Ultrastructural changes and the distribution of arabinogalactan proteins during somatic embryogenesis of banana (Musa spp. AAA cv. ''Yueyoukang 1'') Ultrastructural changes and the distribution of arabinogalactan proteins during somatic embryogenesis of banana (Musa spp. AAA cv. ''Yueyoukang 1'')
skos:notation
RIV/61989592:15310/11:33118114!RIV12-MSM-15310___
n6:predkladatel
n19:orjk%3A15310
n4:aktivita
n20:P
n4:aktivity
P(ED0007/01/01)
n4:cisloPeriodika
4
n4:dodaniDat
n14:2012
n4:domaciTvurceVysledku
n18:4786076
n4:druhVysledku
n17:J
n4:duvernostUdaju
n13:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
236687
n4:idVysledku
RIV/61989592:15310/11:33118114
n4:jazykVysledku
n11:eng
n4:klicovaSlova
banana; somatic embryogenesis; transmission electron microscopy; scanning electron microscopy; arabinogalactan proteins
n4:klicoveSlovo
n9:scanning%20electron%20microscopy n9:banana n9:transmission%20electron%20microscopy n9:arabinogalactan%20proteins n9:somatic%20embryogenesis
n4:kodStatuVydavatele
DK - Dánské království
n4:kontrolniKodProRIV
[CBB3FD772C82]
n4:nazevZdroje
Physiologia Plantarum
n4:obor
n5:EB
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
7
n4:projekt
n12:ED0007%2F01%2F01
n4:rokUplatneniVysledku
n14:2011
n4:svazekPeriodika
142
n4:tvurceVysledku
Yang, Xiao Lin, Guimei Pan, Xiao Chen, Houbin Zou, Ru Šamaj, Jozef Xu, Chunxiang
n4:wos
000292609500007
s:issn
0031-9317
s:numberOfPages
18
n15:doi
10.1111/j.1399-3054.2011.01478.x
n8:organizacniJednotka
15310