Results 21 to 30 of about 442,091 (288)
Pollen and Pollen Enzymes [PDF]
A review of the literature shows very few complete or satisfactory reports of experiments in regard to either the general chemistry or the enzymes of pollen. Our knowledge of the subject seems to be very fragmentary. It is conspicuous by its omission from the textbooks of botany.
Julia Bayles Paton
openalex +4 more sources
Allergenic pollen and pollen allergy in Europe
The allergenic content of the atmosphere varies according to climate, geography and vegetation. Data on the presence and prevalence of allergenic airborne pollens, obtained from both aerobiological studies and allergological investigations, make it possible to design pollen calendars with the approximate flowering period of the plants in the sampling ...
Carlos Nunes+10 more
openaire +6 more sources
Somatic embryogenesis is a reliable system for in vitro plant regeneration, with biotechnological applications in trees, but the regulating mechanisms are largely unknown.
Yolanda Pérez-Pérez+9 more
doaj +1 more source
Metabolomics and Biomarkers for Drug Discovery
Metabolomics and biomarkers are increasingly used in drug discovery and development, and are applied to personalized medicine. Progress in these research areas has increased our understanding of disease pathology and improved therapeutic strategies for ...
Pollen K. Yeung
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A combinatorial approach to angiosperm pollen morphology [PDF]
Angiosperms (flowering plants) are strikingly diverse. This is clearly expressed in the morphology of their pollen grains, which are characterized by enormous variety in their shape and patterning.
Blackmore S+7 more
core +1 more source
Cumulative Pollen Concentration Curves for Pollen Allergy Diagnosis [PDF]
This study was supported by a grant from Euroimmun (code 118583).
S Caglayan Sozmen+38 more
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Effects of Alternaria alternata f.sp. lycopersici toxins on pollen [PDF]
Effects of the phytotoxic compounds (AAL-toxins) isolated from cell-free culture filtrates of Alternaria alternata f.sp. lycopersici on in vitro pollen development were studied. AAL-toxins inhibited both germination and tube growth of pollen from several
Bino, R.J.,+4 more
core +2 more sources
In recent years a large number of reports have been published hinting about the possible role of selection at the male gametophyte level in natural conditions and its possible use as a tool in plant breeding programs. In this work, the evidence that has so far emerged on gametophytic selection is reviewed, and its relationship to pollen competition ...
Hormaza Urroz, José Ignacio+1 more
openaire +3 more sources
Functional expression and subcellular localization of pea polymorphic isoflavone synthase CYP93C18
Isoflavone synthase (IFS; CYP93C) plays a key role in the biosynthesis of phenolic secondary metabolites, isoflavonoids. These compounds, which are well-known for their benefits to human health and plant defence, are produced mostly in legumes.
M. Pičmanová+6 more
doaj +1 more source
Self-pollination by sliding pollen in Caulokaempferia coenobialis (Zingiberaceae) [PDF]
Caulokaempferia coenobialis (Zingiberaceae) forms dense populations on steep cliffs in shady, humid monsoon forests in south China. It produces few consecutively opening bright yellow flowers that are 3 cm long and oriented parallel to the ground.
Chen, Zhongyi+3 more
core +1 more source