Results 301 to 310 of about 1,832,263 (342)

Diversity and dynamics of microbial communities in brown planthopper at different developmental stages revealed by high‐throughput amplicon sequencing

Insect Science, 2019
The microbiome associated with brown planthopper (BPH) plays an important role in mediating host health and fitness. Characterization of the microbial community and its structure is prerequisite for understanding the intricate symbiotic relationships ...
Zheng-Liang Wang, Tian-Zhao Wang, Hang-Feng Zhu, Hai-bo Pan, Xiaoping Yu   +4 more
semanticscholar   +1 more source

Observations on living rat spermatogenic cells in different developmental stages

Cells Tissues Organs, 1978
In the seminiferous tubules of the rat, as in most mammalian species, the developing germ cells form associations with constant cell composition. These cellular associations or stages follow each other in a regular manner along the seminiferous tubules giving rise to the seminiferous epithelial wave.
K O, Söderström, M, Parvinen
openaire   +2 more sources

Exploring the factors affecting regional land development patterns at different developmental stages: Evidence from 289 Chinese cities

Cities, 2019
Numerous studies have explored the drivers and consequences of the expansion of urban areas. However, limited research has been conducted on the land development of cities based on the different developmental stages.
Jin Wanfu, Chunshan Zhou, L. Tao, Guojun Zhang   +3 more
semanticscholar   +1 more source

Sensitivity of different generations and developmental stages in studies on reproductive toxicity

Toxicology Letters, 2014
Numerous studies on reproductive toxicity are expected to be necessary under the EU program on Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). Therefore, it is important to analyse existing testing strategies including also the recently implemented extended one-generation reproduction toxicity study (EOGRTS, OECD guideline
F, Schulz, M, Batke, I, Mangelsdorf, C, Pohlenz-Michel, N, Simetska, G, Lewin   +5 more
openaire   +2 more sources

Expressed sequence tags from persimmon at different developmental stages

Plant Cell Reports, 2008
Persimmon (Diospyros kaki Thunb.) is an important fruit in Asian countries, where it is eaten as a fresh fruit and is also used for many other purposes. To understand the molecular mechanism of fruit development and ripening in persimmon, we generated a total of 9,952 expressed sequence tags (ESTs) from randomly selected clones of two different cDNA ...
T, Nakagawa, A, Nakatsuka, K, Yano, S, Yasugahira, R, Nakamura, N, Sun, A, Itai, T, Suzuki, H, Itamura   +8 more
openaire   +2 more sources

Anthraquinones in different developmental stages ofGaleruca tanaceti (Coleoptera, Chrysomelidae)

Journal of Chemical Ecology, 1991
The overwintering eggs and the larvae of the leaf beetleGaleruca tanaceti (L.) contain hydroxylated anthraquinones. In both developmental stages, l,8-dihydroxy-3-methylanthraquinone (= chrysophanol) and 1,8-di-hydroxyanthraquinone (= chrysazin) were detected by GC-MS and GC-FTIR analyses. In the eggs, chrysazin was found only in traces.
M, Hilker, S, Schulz
openaire   +2 more sources

Microbiota assessment across different developmental stages of Dermacentor silvarum (Acari: Ixodidae) revealed stage-specific signatures.

Ticks and Tick-borne Diseases, 2019
Dermacentor silvarum is an important vector of tick-borne pathogens. The microbiota of ticks has been recognized to influence their development, fitness, and reproduction as well as the acquisition, establishment and transmission of pathogens.
Ruiling Zhang, Guang-fu Yu, Zhendong Huang, Zhong Zhang   +3 more
semanticscholar   +1 more source

Identification of different radiolabelled antigens of the developmental stages of Onchocerca volvulus

Acta Tropica, 1990
By using radioiodination methods which are thought to label preferentially the surface followed by SDS-PAGE and autoradiography, components of different developmental stages of O. volvulus have been identified. Between 2 and 10 polypeptide antigens were revealed on infective larvae (L3), females, males, eggs, nodular and skin microfilariae by using ...
V P, Titanji, W F, Mbacham, A, Sakwe
openaire   +2 more sources

Changes in the magnitude and distribution of forces at different dictyostelium developmental stages

Cell Motility, 2008
AbstractThe distribution of forces exerted by migrating Dictyostelium amebae at different developmental stages was measured using traction force microscopy. By using very soft polyacrylamide substrates with a high fluorescent bead density, we could measure stresses as small as 30 Pa.
H, Delanoë-Ayari, S, Iwaya, Y T, Maeda, J, Inose, C, Rivière, M, Sano, J-P, Rieu   +6 more
openaire   +2 more sources

Steroid production by Xenopus ovarian follicles at different developmental stages

Developmental Biology, 1983
Xenopus ovarian follicles at different developmental stages were compared with respect to their capacity to produce and secrete steroids and to respond to gonadotropic hormones with changes in steroid production. Individual follicles were obtained by treating ovaries with collagenase and were incubated for 10 hr in incubation medium alone or in medium ...
openaire   +2 more sources