LIV.—Sporendonema terrestre, Oudemans, an example of endogenous spore-formation among the Hyphomycetes426 M. C. A. J. A. Oudemans on Endogenous peristoma tenue, antice parum effusum, flavescens ; columoUa iu-ferue subdentata, Diam. max. 10 millim., min. 8|, alt. 8. Hab. Foot ...
Here are some example sentences to help you improve your vocabulary: The rec12 mutants also exhibited high frequencies of additional developmental defects such as abnormal spore placement, reduced spore numbers, and abnormal spore formation (Figure 3C). Meiotic progression in spo11 ( rec12 ) null...
In contrast, the Abu Raoash Formation yielded highly oil-prone Type II>I kerogen (AOM-rich). Thermal maturity proxies including Rock–Eval pyrolysis (Tmax), Ro%, and Spore Coloration Index (SCI) reveal that the Bahariya and Abu Raoash formations are immature. 展开 ...
The cementation gradu- ally develops from the formation of individual aggluti- nates (botryoidal aggregates of several grains). The oxide films range from 10-20 lam to 2-3 mm in thick- ness. The crust surface has an uneven relief, which is typical of polyspheroidal ("sintered") ...
The role of chromosomes in anaphase trigger and nuclear envelope activity in spindle formation Spore mother cells of the moss Mnium hornum and endosperm of Haemanthus albiflos and H. katherinae were used as material.During Pachytene, in Mnium ,... AM Lambert - 《Chromosoma》 被引量: 135...
Evidence for cattle rearing activity also comes from the fungal spore record, with the dung-inhabiting taxa (Cercophora-type andSordaria-type).Cercophoracomprises species which occur regularly on decaying wood, culms, stems and leaves (Ellis and Ellis1997), but in an archaeological context this fu...
The high availability of metallic ions in the soil, including Mn2+, may inhibit arbuscular mycorrhizal fungi (AMF), slowing down spore germination and, consequently, the mycorrhiza formation, therefore decreasing the symbiotic effectiven... EJBN Cardoso,RB Navarro,MA Nogueira - 《Revista Brasileira ...
As an evaluation of FCM we used it to resolve Jurassic miospore and pollen biofacies from the Pentland, Fulmar, and Heather formations from two closely spaced wells in the Hawkins Field, Central North Sea, UK. These data were chosen because they contain a flora for which there is ...
The development of spores represents one of the main morphogenetic processes in spore-forming bacterial groups, involving more than 150 genes and a variety of sigma factors. These factors control not only the transcription of sporulation-specific operons, involved in spore formation and maturation, ...
The specifics of the formation of pollen spectra in the cultural layer is considered in detail. It is established that signs of anthropogenic impact on landscape changes are recorded by the spore-pollen method. Anthropogenic bioindicators are identified. It is suggested that the use of anthropogenic...