Sexual Differences in Biomass and Nutrient Allocation in the Dioecious Rubus Chamaemorus

Ecology ◽  
1988 ◽  
Vol 69 (4) ◽  
pp. 962-973 ◽  
Author(s):  
Jon Agren
Keyword(s):  
Sexual Differences ◽  
Nutrient Allocation ◽  
Rubus Chamaemorus

Sexual differences in biomass and nutrient allocation of first-year Silene dioica plants

Oecologia ◽  
1999 ◽  
Vol 118 (4) ◽  
pp. 453-460 ◽  
Author(s):  
Åsa M. Hemborg ◽  
P. Staffan Karlsson
Keyword(s):  
Sexual Differences ◽  
First Year ◽  
Nutrient Allocation ◽  
Silene Dioica

Ultrastructural Changes in the Root Meristem Cells of Rubus Chamaemorus L. (Cloudberry)

1975 ◽  
Vol 33 ◽  
pp. 562-563
Author(s):  
Arya K. Bal
Keyword(s):  
Root Meristem ◽  
Uranyl Acetate ◽  
Particulate Material ◽  
Ultrastructural Changes ◽  
Cell Organelles ◽  
Cytoplasmic Matrix ◽  
Golgi Membranes ◽  
Rubus Chamaemorus ◽  
Dense Substance ◽  
Ultrathin Sections

In the course of studies in the root meristem tissue of Rubus chamaemorus L. some important changes in the ultrastructural morphology were observed during the initiation of senescence at the end of the growing season.Root meristems were collected from naturally growing healthy populations of Cloudberry plants, and fixed in Karnovsky's mixture or in 2.5% glutaraldehyde in phosphate buffer. The samples were osmicated, dehydrated following usual methods and embedded in Epon. Ultrathin sections were stained in uranyl acetate and lead citrate.Figure 1 shows part of a dense cell in the meristem. The electron density of these cells is due to large amounts of a particulate material in the cytoplasmic matrix. The smallest particle seen in electron micrographs is about 40 A, although larger aggregates are also found, which remain randomly distributed in association with various cell organelles. Dense substance has been found associated with golgi membranes, proplastids, vacuoles and microtubules (Fig. 2).

МОРФО-ФИЗИОЛОГИЧЕСКИЕ ОСОБЕННОСТИ АССИМИЛЯЦИОННОГО АППАРАТА ЛИСТЬЕВ RUBUS CHAMAEMORUS (ROSACEAE) НА ЗАПАДНОМ ШПИЦБЕРГЕНЕ

2019 ◽  
Vol 104 (11) ◽  
pp. 1740-1752
Author(s):  
Е. Ф. Марковская ◽  
Н. Ю. Шмакова ◽  
К. В. Морозова ◽  
О. В. Ермолаева
Keyword(s):  
Rubus Chamaemorus

Sexual differences in human cranial morphology: is one sex more variable or one region more dimorphic?

2021 ◽  
Author(s):  
Marco Milella ◽  
Daniel Franklin ◽  
Maria Giovanna Belcastro ◽  
Andrea Cardini
Keyword(s):  
Sexual Differences ◽  
Cranial Morphology

scholarly journals Natural Antimicrobials from Cloudberry (Rubus chamaemorus) Seeds by Sanding and Hydrothermal Extraction

2021 ◽  
Author(s):  
Riitta Puupponen-Pimiä ◽  
Liisa Nohynek ◽  
Jussi Suvanto ◽  
Juha-Pekka Salminen ◽  
Tuulikki Seppänen-Laakso ◽  
...  
Keyword(s):  
Natural Antimicrobials ◽  
Rubus Chamaemorus ◽  
Hydrothermal Extraction

Phytochemical Analysis of Polyphenol Secondary Metabolites in Cloudberry (Rubus Chamaemorus L.) Leaves

2021 ◽  
Author(s):  
A. K. Whaley ◽  
A. O. Ponkratova ◽  
A. A. Orlova ◽  
E. B. Serebryakov ◽  
S. N. Smirnov ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Phytochemical Analysis ◽  
Rubus Chamaemorus

scholarly journals Role of juvenile hormone and allatotropin on nutrient allocation, ovarian development and survivorship in mosquitoes

2007 ◽  
Vol 53 (3) ◽  
pp. 230-234 ◽  
Author(s):  
Salvador Hernández-Martínez ◽  
Jaime G. Mayoral ◽  
Yiping Li ◽  
Fernando G. Noriega
Keyword(s):  
Juvenile Hormone ◽  
Ovarian Development ◽  
Nutrient Allocation

Infection of American smelt in Lake Ontario and Lake Erie with the microsporidian parasite Glugea hertwigi (Weissenberg)

1972 ◽  
Vol 50 (9) ◽  
pp. 1183-1188 ◽  
Author(s):  
M. Chen ◽  
G. Power
Keyword(s):  
Digestive Tract ◽  
Lake Erie ◽  
Ovarian Tissue ◽  
Lake Ontario ◽  
Parasite Load ◽  
Sexual Differences ◽  
Striking Difference ◽  
Female Fish ◽  
Microsporidian Parasite ◽  
Male Fish

In samples taken monthly throughout the year the percentage of American smelt in Lake Ontario and Lake Erie containing cysts of Glugea hertwigi was 5.2% and 62.7% respectively. Sexual differences in incidence were observed, the significance of which was uncertain as results from the two lakes were contradictory.In male fish infection was almost entirely restricted to the digestive tract with few cysts in the liver, skin, and testes. In female fish the digestive tract and ovaries were similarly infected.Seasonal fluctuations in Glugea infection were obvious and seemed correlated with the gonadal cycle. In both sexes the highest parasite load corresponded with the onset of maturation.A striking difference in fecundity between the two smelt populations was attributed to the Glugea infection. In females parasite cysts replaced ovarian tissue, causing a reduction in the number of maturing eggs.

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