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Tytuł:
Mechanical touch responses of Arabidopsis TCH1-3 mutant roots on inclined hard-agar surface
Autorzy:
Zha, G.
Wang, B.
Liu, J.
Yan, J.
Zhu, L.
Yang, X.
Powiązania:
https://bibliotekanauki.pl/articles/24565.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
mechanical touch response
mechanical touch simulation
Arabidopsis
TCH1-3 gene
mutant
root growth
Źródło:
International Agrophysics; 2016, 30, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oddzialywanie jonow olowiu na kielkowanie i wzrost korzeni siewek Brassica napus i Medicago sativa
Autorzy:
Wlodkowic, D
Tomaszewska, B.
Powiązania:
https://bibliotekanauki.pl/articles/833770.pdf
Data publikacji:
2003
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
ochrona srodowiska
olow
rzepak
rosliny oleiste
kielkowanie
wzrost korzeni
rosliny pastewne
Brassica napus
lucerna
Medicago sativa
fitoremediacja
siewki
environment protection
lead
rape
oil plant
germination
root growth
fodder plant
alfalfa
phytoremediation
seedling
Źródło:
Rośliny Oleiste - Oilseed Crops; 2003, 24, 1; 223-230
1233-8273
Pojawia się w:
Rośliny Oleiste - Oilseed Crops
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth of Heterobasidion annosum (Fr.) Bref. through bark of one-year-old Pinus sylvestris seedlings grown in vitro
Autorzy:
Werner, A.
Powiązania:
https://bibliotekanauki.pl/articles/41412.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Heterobasidion annosum
root rot fungi
pathogen
root infection
Pinus sylvestris
bark
seedling
growth
in vitro
host reaction
Opis:
Pinus sylvestris L. seedlings grown for 12-17 months in pure culture after inoculation with S and P strains of Heterobasidion annosum (Fr.) Bref. were studied with the help of light and transmission electron microscopy. Standardized inoculation procedure and uniform in vitro conditions allowed evaluation of the host/pathogen interactions. Necrotic reaction of the bark cells associated with the accumulation of dark-stained material in vacuoles, and lignification of their walls in root regions in proximity to mycelium were the common host reaction. Hypertrophy of the bark cells in areas invaded by hyphae caused a tension that was responsible for strong deformation of the bark cells. Injury to the vascular cambium resulted in formation of barrier zone parenchyma and abnormal xylem elements. High amount of polyphenolic material accumulated in new formed parenchyma cells was an effective chemical “barrier” to the centripetal spread of hyphae. Resin-plugged tracheids and row parenchyma cells rich in polyphenolic material were common in wood areas colonized by the fungus.
Źródło:
Dendrobiology; 2001, 46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial stages of host-pathogen interaction between Pinus sylvestris seedling roots and the P-, S- and F-intersterility group isolates of Heterobasidion annosum
Autorzy:
Werner, A
Lakomy, P.
Idzikowska, K.
Zadworny, M.
Powiązania:
https://bibliotekanauki.pl/articles/41681.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Pinus sylvestris
seedling root
Heterobasidion annosum
host-pathogen interaction
adhesion
hyphal growth
penetration
root surface
Opis:
Prepenetration and penetration phenomena after inoculation of roots of Pinus sylvestris seedlings grown in vitro with the P-, S- and F-group isolates of Heterobasidion annosum were observed using scanning electron microscop. There were no differences in the behaviour of hyphae and in the appearence of mycelia formed by the three IS-group isolates. Four types of the root penetration by hyphae were observed. In the first, the entrace of hypha into root was achieved throught tiny pore formed in walls of the cortical cells. In the second, swellings resembling appressoria were formed by the hyphal tips at the points of contact with the root surface. In the third, the hyphae penetrated cells through holes in eroded areas of roots, and in the fourth by the natural crevices at points of the cortical cell junctions. It is concluded that the different frequencies of the four types of penetration observed after inoculation with isolates of the three IS group should be carefully explained in term of their different pathogenic and saprobic capabilities on pine.
Źródło:
Dendrobiology; 2005, 54; 57-63
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phenolic compounds and properties of antioxidants in grapevine roots [Vitis vinifera L.] under low-temperature stress followed by recovery
Autorzy:
Weidner, S
Kordala, E.
Brosowska-Arendt, W.
Karamac, M.
Kosinska, A.
Amarowicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/57473.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
oxidative stress
environment condition
plant growth
root
Vitis vinifera
phenolic compound
chill stress
plant development
grape-vine
antioxidative system
Opis:
The research has been performed on roots of Vitis vinifera, cv. Himrod, obtained from seedlings grown under chill stress conditions (+10oC in the day and +7oC at night), under optimum conditions (+25oC in the day and +18oC at night) and from seedling which underwent a recover period after the chill stress treatment. The purpose of the study has been to determine quantitative and qualitative changes in phenolic compounds as well as to demonstrate changes in antiradical properties of extracts from grapevine roots, which appeared as a result of chill stress and during recovery under the optimum conditions following the stress. Phenolic compounds from grapevine roots were extracted using 80% acetone. The total content of phenolics was determined by colorimetry. The content of tannins was tested by precipitation with bovine serum albumin. The reducing power as well as DPPH• free radical and ABTS+• cation radical scavenging activity of the extracts were also tested. In order to identify phenolic compounds present in the extracts the RP-HPLC technique was employed. The tested material was found to contain tannins and three identified phenolic acids: ferulic, caffeic and p-coumaric ones. The latter occurred in the highest concentrations (from 4.46 to 6.28 µg/g fresh matter). Ferulic acid appeared in smaller amounts (from 1.68 to 2.65 µg/g fresh matter), followed by caffeic acid (from 0.87 to 1.55 µg/g fresh matter). Significantly less total phenolic compounds occurred in roots of seedlings subjected to chill stress. However, the total content of these compounds increased significantly in roots of plants which underwent recovery after chill stress. Concentration of tannins was determined by two methods. The content of condensed tannins was depressed in roots as a result of low temperature stress, whereas the content of condensed and hydrolysing tannins (determined via the BSA method) rose under chill stress conditions. A significant increase in tannins in root extracts (determined with both methods) was found during the recovery process after the stress. The three identified phenolic acids appeared in grapevine roots as ester-bound compounds. It has been demonstrated that the content of phenolic acids significantly fell as a result of low temperatures, but increased during recovery after chill stress. The weakest ability to scavenge DPPH• and ABTS+• free radicals as well as the reducing power were shown by the extract obtained from grapevine roots from the seedlings subjected to chill stress. Both free radical scavenging activity and reducing power were observed to increase considerably during recovery after stress. This seems to prove that during the recovery process following chill stress the synthesis of antioxidative compounds in grapevine roots is much more intensive.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 4; 279-286
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rape glucosinolates and alfalfa saponins as allelopathic factors for lettuce seeds germination
Autorzy:
Waligora, D
Powiązania:
https://bibliotekanauki.pl/articles/66032.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
glucosinolate
allelopathic factor
development
root hair
allelopathy
seed
germination
seed germination
oilseed rape
alfalfa
saponin
seedling growth
lettuce
Opis:
Secondary plant substances - glucosinolates and saponins reduced seed germination and seedling growth of lettuce. Saponins showed greater inhibitory effect on both germination and growth of lettuce seedlings than glucosinolates. The effect depended on the concentration of these compounds in the ground. Tested compounds caused abbreviation of roots, browning their tips and prevented root hair development.
Testowano wpływ roślinnych metabolitów wtórnych: saponin lucerny i glukozynolanów rzepaku na kiełkowanie nasion sałaty. Stwierdzono hamujący wpływ obu badanych związków na kiełkowanie. Znacznie silniejsze działanie wykazywały saponiny, przy czym efekt ten zależny był od ich stężenia w podłożu. Badane związki wpływały nie tylko na liczbę skiełkowanych nasion, ale również na wygląd siewek (skrócenie korzonków, brunatnienie ich końców, brak włośników).
Źródło:
Journal of Plant Protection Research; 1997, 37, 1-2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil structure parameters in models of crop growth and yield prediction. Physical submodels
Autorzy:
Walczak, R.T.
Witkowska-Walczak, B.
Baranowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/25172.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
hydraulic conductivity
root system
bulk density
soil structure
yield prediction
crop growth
porosity
water retention
Źródło:
International Agrophysics; 1997, 11, 1-2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Growth of Populus tremula on CO2-enriched soil at a natural mofette site
Autorzy:
Vejpustkova, M.
Thomalla, A.
Cihak, T.
Lomsky, B.
Pfanz, H.
Powiązania:
https://bibliotekanauki.pl/articles/41317.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plant growth
Populus tremula
carbon dioxide
soil
root zone
tree ring
natural mofette
mofette site
aspen
Opis:
The main objective of the study was to evaluate inter-annual ring-width variation and cumulative growth of aspen (Populus tremula L.) trees growing on the spots of different soil CO2 concentration at natural mofette site. We hypothesized that growth rate of trees is affected by CO2 concentration within their rooting zone. The study site was situated in the flood plain of Plesná stream near Hartoušov (Western Bohemia). Trees growing in a pure aspen stand were selected according to the CO2-gas regime within their rooting zone. Five high [CO2] trees (10–25% CO2 in the soil) and five low [CO2] trees (up to 3% CO2 in the soil) were sampled. Stem growth analysis of each trunk was carried out to study growth pattern in detail. High and low [CO2] trees significantly differed in a growth rate. At the age of 25 years, the basal area of high [CO2] trees exceeded low [CO2] trees by 39 %. The positive effect of CO2 on annual increment was pronounced particularly in the years with optimal growing conditions. Results suggest that trees can be fertilized not only by elevated atmospheric CO2 but also when fed with CO2 via the roots.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The growth and saponin production of Platycodon grandiflorum (Jacq.) A. DC. (Chinese bellflower) hairy roots cultures maintained in shake flasks and mist bioreactor
Autorzy:
Urbanska, N.
Giebultowicz, J.
Olszowska, O.
Szypula, W.J.
Powiązania:
https://bibliotekanauki.pl/articles/59036.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
saponin
Platycodon grandiflorum
Chinese bellflower
plant growth
hairy root
root
shake flask
mist bioreactor
Opis:
The growth and saponin accumulation were measured in two lines of transgenic hairy roots of Platycodon grandiflorum, Pl 6 and Pl 17, cultured for 8 weeks in 250-ml shake flasks containing 50 ml of hormone-free woody plant medium supplemented with 40 g/l sucrose and in the Pl 17 line cultured for 12 weeks in a 5-l mist bioreactor containing 1.5 l of the same medium. With both methods, the growth of transgenic hairy roots was assessed as both fresh and dry weight and the biomass growth was correlated with the conductivity and sucrose uptake. The accumulation of saponins was measured and compared with that in roots derived from the field cultivation. The saponin concentrations were significantly higher in the two hairy root lines cultured in shake flasks [6.92 g/100 g d.w. (g%) and 5.82 g% in Pl 6 and Pl 17, respectively] and the line cultured in the bioreactor (5.93 g%) than in the roots derived from the field cultivation (4.02 g%). The results suggest that cultures of P. grandiflorum hairy roots may be a valuable source for obtaining saponins.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How do rare earth elements (lanthanoids) affect root development and protocorm-like body formation in hybrid Cymbidium?
Autorzy:
Teixeira da Silva, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/2174.pdf
Data publikacji:
2014
Wydawca:
Instytut Ogrodnictwa
Tematy:
lanthanide
root development
orchid
protocorm-like body
rare earth element
root formation
plant growth regulator
Cymbidium
Źródło:
Journal of Horticultural Research; 2014, 22, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluxes of nitrogen within deciduous fruit trees
Przepływy azotu wewnątrz drzew owocowych klimatu umiarkowanego
Autorzy:
Tagliavini, M.
Millard, P.
Powiązania:
https://bibliotekanauki.pl/articles/11364496.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
nitrogen remobilization
nitrogen nutrition
nitrogen flux
shoot-root-shoot nitrogen recycling
fruit tree
nitrogen storage
fruiting
growth
Opis:
Nitrogen (N) nutrition is a major means of controlling growth and fruiting of trees. In EU Countries, society’s expectations and political decisions have pushed for the adoption of sustainable ways to manage orchards. Guidelines for N management aim to limit fertiliser applications under threshold limits, in order to reduce N losses. Increasing the effectiveness of the recycling of the N present in the orchard is a basic step to reduce external N inputs. The availability of the stable isotope ¹⁵N as experimental tool has made possible significant advances in the knowledge of the fluxes of N at tree and orchard level. This paper discusses the N fluxes occurring within the tree both between the years and within the year (root-shoot-root N recycle) and their role in the vegetative and reproductive cycle of fruit trees.
Odżywianie azotem (N) stanowi główny czynnik kontrolujący wzrost i owocowanie drzew. W krajach UE oczekiwania społeczeństwa i decyzje polityczne wymuszają przyjęcie odnawialnych sposobów prowadzenia sadów. Wskazania odnośnie gospodarki azotem są nakierowane na zastosowanie nawozów w progowych dawkach, w celu zredukowania strat N. Wzrost efektywności obiegu N obecnego w sadzie stanowi podstawowy krok w kierunku ograniczenia zewnętrznego wkładu. Zastosowania izotopu ¹⁵N jako narzędzia doświadczalnego umożliwiło znaczny postęp w poznaniu przepływów azotu w obrębie drzew i w ogóle w sadzie. W pracy dyskutowane są przepływy N wewnątrz drzewa – pomiędzy latami i w obrębie roku (obieg korzenie–pędy–korzenie) oraz ich znaczenie dla cykli wzrostowych i reprodukcyjnych drzew owocowych.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2005, 04, 1; 21-30
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjał wzrostowy korzeni sadzonek sosny zwyczajnej, świerka pospolitego i modrzewia europejskiego
Autorzy:
Szeligowski, H.
Powiązania:
https://bibliotekanauki.pl/articles/1022055.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
hodowla lasu
potencjal wzrostu
sadzonki
Larix decidua
korzenie
Picea abies
sosna zwyczajna
lesnictwo
modrzew europejski
swierk pospolity
Pinus sylvestris
drzewa lesne
scott pine
norway spruce
european larch
root growth potential
storage
Opis:
The paper is an attempt to determine the testing standard of root growth potential of European tree species: pine, spruce and larch. The experiment was conducted in a greenhouse during the dormancy season (February−March). The experimental variants consisted of two methods of seedling storage: the cold store and traditional storage pit. The obtained results revealed that the tested species had poor root growth capacity when compared to Burdett scale and their response range is between 0 and 3. It was noted that the storage method stimulates root production. As a rule the seedlings stored in the pit had higher root growth response than those stored in the cold store.
Źródło:
Sylwan; 2005, 149, 10; 28-34
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wplyw Hplus i ALplus3 na zawartosc skladnikow mineralnych oraz wzrost i rozwoj pszenicy jarej
Effect of H+ and AL+ on selected elements content and growth of wheat
Autorzy:
Szatanik-Kloc, A
Powiązania:
https://bibliotekanauki.pl/articles/1401801.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
pszenica jara
rozwoj roslin
wzrost roslin
korzenie
skladniki mineralne
mikroelementy
makroelementy
glin
stres glinowy
pH
spring wheat
plant development
plant growth
root
mineral component
microelement
macroelement
aluminium
aluminium stress
Opis:
Celem pracy było ustalenie, które z badanych roślin (topola, wierzba wiciowa, rzepak, konopie i mieszanka traw) kumulują największe ilości cynku oraz jak zróżnicowany stopień nawadniania gleby wpływa na pobranie tego pierwiastka. Eksperyment przeprowadzono na polach doświadczalnych (gleba torfowo-murszowa) irygowanych ściekami miejskimi o II stopniu oczyszczenia. Pola doświadczalne były podzielone na trzy kwatery: kontrolną (A), zalewaną pojedynczą dawką, ścieków miejskich po II stopniu oczyszczenia (B) oraz zalewaną dawką podwójną (C), Ilość ścieków wprowadzanych na pola wynosiła odpowiednio 600 i 1200 mm w ciągu roku. Oznaczenia stężeń cynku w materiale roślinnym wykonywano metodą absorpcyjnej spektrometrii atomowej (AAS). Stężenia cynku mieściły się w zakresie 11-290 mg kg '. Najwyższą zawartość cynku stwierdzono w liściach topoli, 32-290 mg kg-1. Pozostałe rośliny można uszeregować następująco; wierzba, konopie, rzepak, mieszanka traw.
The aim of the work was to establish, which of tested plants (poplar, willow, mixture of grasses, hemp, spring rape) cultivated on experimental fields (Eutric Histosol) irrigated with municipal wastewater's (after second [biological] step of purification) is the most efficient in accumulation of zinc. Experimental fields with each plant were divided into three parts: control part (A); Hooded with single (600 mm) dose of water (B); flooded with double dose (C). Zinc content analyses were done with atomic absorption spectrometer. The highest concentrations of zinc (32-290 mg kg-1) were observed in poplar leaves. The experiment demonstrated the following order of zinc content in green parts of the plants: poplar> willow> hemp> rapc>= mixture of grasses. The highest concentrations of zinc were the most often observed in plants grown on control fields.
Źródło:
Acta Agrophysica; 2000, 38; 229-236
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Localization of expansin-like protein in apoplast of pea [Pisum sativum L.] root nodules during interaction with Rhizobium leguminosarum bv. viciae 248
Autorzy:
Sujkowska, M
Borucki, W.
Golinowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/58810.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
nodule
infection thread
interaction
expansin-like protein
pea
localization
Rhizobium leguminosarum bv.viciae
expansive growth
symbiosis
botany
symbiotic interaction
apoplast
Pisum sativum
root nodule
Opis:
During nodule development on pea roots, apoplast undergoes changes in activity of plant cell wall proteins such as expansins (EXPs). Because the accumulation of EXP protein has been correlated with the growth of various plant organs, we investigated using Western Blot and immunolocalization studies with antibody against PsEXP1, whether this protein was accumulated in the expanding cells of nodule. Immunoblot results indicated the presence of a 30-kDa band specific for pea root nodules. The EXP proteins content rose during growth of pea root nodules. Expansin(s) protein was localized in nodule apoplast as well as in the infection thread walls. The enhanced amount of expansin-like proteins in meristematic part of nodule, root and shoot was shown. The localization of this protein in the meristematic cell walls can be related to the loosening of plant cell wall before cell enlargement. Both, plant cell enlargement and infection thread growth require activity of expansin(s). Possible involvement of EXPs in the process of pea root nodule development is also discussed.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shoot and root competition between spring triticale and field beans during early growth
Pędowa i korzeniowa konkurencja między pszenżytem jarym a bobikiem we wczesnej fazie wzrostu
Autorzy:
Sobkowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/47176.pdf
Data publikacji:
2005
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
competition
triticale
spring triticale
field bean
intercrop
early growth
plant growth
shoot
root
nitrogen
competition index
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2005, 04, 1
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
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