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Modern computational tools open new era of fossil pollen research（图）
Modern computational tools new era fossil pollen
2020/11/6
One of the best sources of information on the evolution of terrestrial ecosystems and plant diversity over millions of years is fossil pollen. For palynologists -- the scientists who study ancient pol...
Scientists discover ancient safety valve linking pollen to bacteria
Scientists ancient safety valve pollen to bacteria
2015/11/12
Like seeds, pollen loses most of its water during maturation, entering a state of suspended animation. This allows it to survive its journey from male to female organs of a flower, where it is rehydra...
Understanding the Links Between Human Health and Climate Change: Agricultural Productivity and Allergenic Pollen Production of Timothy Grass(Phleum pratense L.) Under Future Predicted Levels of Carbon Dioxide and Ozone
Carbon Dioxide Climate Change Grass Pollen Human Health Ozone Phleum pratense
2014/11/4
The prevalence of allergic disease is expected to increase with climate change. Grasses, which have highly allergenic pollen, are widely distributed across the globe. Changes in production and allerge...
Pollen morphology of some Gypsophila L. (Caryophyllaceae) species and its taxonomic value
Caryophyllaceae Gypsophila pollen LM SEM TEM
2010/3/17
Pollen morphology of 12 taxa (6 of them endemic) that belong to the genus Gypsophila L. were investigated using light microscopy (LM), scanning electron microscopy (SEM), and transmission electron mic...
Pollen morphology of the genus Cornukaempferia (Zingiberaceae) in Thailand
Cornukaempferia Zingiberaceae pollen morphology exine
2009/8/4
Cornukaempferia is a recently described genus of Zingiberaceae which only occurs in Thailand as a rare genus with limited geographical distribution. Only three species have been described so far, incl...
Pollen morphology of Astragalus L. sect. Onobrychoidei DC. (Fabaceae) in Turkey
Turkey Fabaceae Astragalus Onobrychoidei pollen morphology
2010/3/17
The pollen morphology of 45 specimens of 29 species of the genus Astragalus L. of the section Onobrychoidei DC. distributed in Turkey was studied with light and electron microscopies. The pollen is ge...
The diversity of Araceae is shown markedly in its habit, external morphology and phytogeography, as well as in its pollen morphology. The pollen of Araceae is still little known. A comparative small ...
Pollen and Seed Morphology of the Genus Hesperis L. (Brassicaceae) in Turkey
Cruciferae Hesperis morphology pollen seed Turkey
2010/3/17
Pollen and seed morphology were examined in 35 specimens representing 25 Turkish species of the taxonomically complex genus Hesperis L. by light and scanning electron microscopes. Three main types and...
Studies on the Effect of Maleic Hydrazide on Root Tip Cells and Pollen Fertility in Trigonella foenum-graecum L.
Cytotoxicity Fenugreek Maleic Hydrazide (MH) Mitotic Index (MI)
2010/3/17
In the present investigation, the effect of maleic hydrazide (MH) has been studied on seed germination, mitosis, and pollen fertility of Trigonella foenum-graecum L. to test its cytotoxicity. Six diff...
The Structure and Ultra Structure of Anther Epidermis and Pollen in Lagerstroemia indica L. (Lythraceae) in Response to Air Pollution
Air pollution anther epidermis flavonoids Lagerstroemia indica pollen
2010/3/17
The structure of the anthers and pollen of Lagerstroemia indica L. (crepe myrtles) (Lythraceae) in samples collected from clean and polluted areas was studied by OM, SEM, and TEM. The epidermal cells ...
The Effect of Air Pollution on Microsporogenesis, Pollen Development and Soluble Pollen Proteins in Spartium junceum L. (Fabaceae)
Air pollution, anther development, cellular material release microsporogenesis pollen structure soluble proteins Spartium junceum
2010/3/18
Air pollution induces abnormality in anthers, reduction of pollen grains´ umbers and male sterility. Anthers of Spartium junceum L. (Spanish broom) were collected at different stages of developm...
Pollen Morphology of the Turkish Romulea Maratti (Iridaceae)
Iridaceae Romulea pollen morphology Turkey
2010/3/18
Pollen morphology of the Turkish Romulea Maratti taxa (Iridaceae) was examined using light and scanning electron microscopy. The taxa are similar in some aspects, such as pollen size and spinulate-mic...
MMS-Induced Cytomixis in Pollen Mother Cells of Broad Bean (Vicia faba L.)
Vicia faba MMS microsporogenesis cytomixis pollen fertility stickiness
2010/3/18
Cytomixis was recorded during microsporogenesis in broad bean (Vicia faba L.), a member of the family Fabaceae. It is an important pulse crop used as vegetable, silage, forage and stock feed. The phen...
Pollen Morphology of Egyptian Malvaceae: An Assessment of Taxonomic Value
Pollen Morphology Egyptian Malvaceae
2010/3/19
The pollen morphological characteristics of 21 species of Egyptian Malvaceae belonging to 10 genera: Abelmoschus Medik., Hibiscus L., Gossypium L., Lagunaria L., Abutilon Mill., Sida L., Malva L., Lav...
In Vitro Pollen Germination and Pollen Tube Characteristics in Tetraploid Red Clover (Trifolium pratense L.)
Tetraploid Trifolium pratense L. in vitro germination pollen red clover.
2010/3/22
The morphological characteristics, fertility and in vitro germination of natural tetraploid red clover (Trifolium pratense L.) pollen were examined as well as the characteristics of pollen tubes and c...