Fungitoxicity of Pollen Grains with Special Reference to Xanthium Strumarium (Compositae)
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TLDR
During screening of pollen suspensions of higher plants against Colletotrichum capsici, Curvularia lunata and Helminthosporium oryzae, only grains of Xanthium strumarium L. inhibited their spore germination completely, and its toxicity did not alter at high temperatures and during autoclaving.Abstract:
During screening of pollen suspensions of 20 species of higher plants against Colletotrichum capsici, Curvularia lunata and Helminthosporium oryzae, only grains of Xanthium strumarium L. inhibited their spore germination completely. Its toxicity did not alter at high temperatures and during autoclaving. However, toxicity was increased when the suspensions stored for 48 h were used. It inhibited 3 out of 11 additional fungi tested at 1: 200 (w/v) dilution during its fungitoxic spectrum.read more
Citations
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Journal ArticleDOI
The ecology and evolution of pollen odors
TL;DR: Pollen odors are more pronounced in insect- than bird- or wind-pollinated plants, suggesting that volatile emission evolved in part under selection to attract pollinators and increase its dispersal by animals.
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Fatty acids in pollen: a review of their importance for honey bees
TL;DR: Pollens with high lipid concentrations and dominated by linoleic, linolenic, myristic and dodecanoic acids probably play a significant role in inhibiting the growth of the spore-forming bacteria, Paenibacillus larvae larvae larvae, Melissococcus pluton and other microbes that inhabit the brood combs of beehives.
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Survey of pollen and pollenkitt lipids: chemical cues to flower visitors?
TL;DR: Patterns in neutral lipid compositions suggest that pollenkitt may provide pollen with speciesspecific odors, while polar lipids were found almost exclusively in the internal pollen fraction.
Book ChapterDOI
Pollen Wall and Sporopollenin
R. Wiermann,S. Gubatz +1 more
TL;DR: The pollen wall, the sporoderm, is the most complex wall system in the life cycle of higher plants and includes three main domains that are highly different in their chemical composition, morphological structure, and physiological and biological significance.
Journal ArticleDOI
Pollen Advertisement: Chemical Contrasts Between Whole-Flower and Pollen Odors
Heidi E. M. Dobson,Heidi E. M. Dobson,Inga Groth,Inga Groth,Gunnar Bergström,Gunnar Bergström +5 more
TL;DR: It is suggested that pollen odor is used by pollen-foraging insects both to discriminate between plant species and to assess reward availability in individual flowers, and that it might in addition serve a protective function against destructive flower-feeding insects and pathogens.
References
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Fungicides in plant disease control.
Y. L. Nene,P. N. Thapliyal +1 more
TL;DR: Fungicides in plant disease control, Fungicide in plant diseases control, and how to use them more effectively.