Results 61 to 70 of about 243,024 (208)

Pollen physiology and fertilisation in Vicia Faba L [PDF]

open access: yes, 1990
In many legume crop species, early-formed fruits or those located closest to the photosynthate are more likely to mature than other fruits. This is so in the Vicia faba crop.
Telaye, A, Telaye, Asfaw
core  

Do pollen beetles need pollen? The effect of pollen on oviposition, survival and development of a flower-feeding herbivore

open access: yes, 2004
1. Pollen is considered to be an important dietary component for many species of flower-feeding herbivores. Its influence on oviposition site selection by the pollen beetle Meligethes aeneus, and on the development of its larvae was investigated. 2.
Williams, I. H.   +4 more
core   +1 more source

Connecting innovation and policy to reduce to carbon emissions from manufacturing [PDF]

open access: yesE3S Web of Conferences
Drawing on qualitative case study data from Scottish distilleries and from UK cement production, this paper explores firmand sector-level responses to the net zero carbon emissions challenge, demonstrating the difference between two pathways: (1 ...
Pirgova-Morgan Luba   +2 more
doaj   +1 more source

The coupling of transcriptome and proteome adaptation during development and heat stress response of tomato pollen

open access: yesBMC Genomics, 2018
Background Pollen development is central for plant reproduction and is assisted by changes of the transcriptome and proteome. At the same time, pollen development and viability is largely sensitive to stress, particularly to elevated temperatures.
Mario Keller   +2 more
doaj   +1 more source

Honey bees preferentially consume freshly-stored pollen. [PDF]

open access: yesPLoS ONE, 2017
Honey bees (Apis mellifera) collect and store both honey and pollen in preserved forms. Pollen storage involves the addition of honey or nectar and oral secretions to pollen granules.
Mark J Carroll   +5 more
doaj   +1 more source

Higher airborne pollen concentrations correlated with increased SARS-CoV-2 infection rates, as evidenced from 31 countries across the globe

open access: yes, 2021
SARS-CoV-2 infections positively correlate with pollen concentrations (PNAS, 2021). Daily data per country and examined region of: 1. Airborne pollen concentrations 2. SARS-CoV-2 infection rates 3. Air temperature 4. Relative humidity 5.
Damialis, A (via Mendeley Data)   +1 more
core   +1 more source

The transcription factors and pathways underpinning male reproductive development in Arabidopsis

open access: yesFrontiers in Plant Science
As Arabidopsis flowers mature, specialized cells within the anthers undergo meiosis, leading to the production of haploid microspores that differentiate into mature pollen grains, each containing two sperm cells for double fertilization.
Anna Johanna Wiese   +4 more
doaj   +1 more source

Pollen Histochemistry and Pollen : Ovule Ratios in Zingiberaceae [PDF]

open access: yesAnnals of Botany, 2004
Pollen grains of 37 species from 11 genera in the family Zingiberaceae were examined to assess qualitatively starch or lipid contents; the pollen grain and ovule numbers per flower and pollen : ovule ratios were also counted and calculated. Pollen : ovule ratios were studied to reveal patterns of variation in the Zingiberaceae.Freshly open flowers with
Ying-Qiang, Wang   +2 more
openaire   +2 more sources

Diltiazem Reduces Mortality and Breakdown of ATP in Red Blood Cell Induced by Isoproterenol in a Freely Moving Rat Model in Vivo

open access: yesMetabolites, 2014
The benefit of calcium channel blockers for cardiovascular prevention against heart attack and stroke has not been firmly supported. We investigated the possible cardiovascular protective effect of diltiazem (DTZ) against injury induced by isoproterenol ...
Pollen K.F. Yeung   +2 more
doaj   +1 more source

Reconsidering amateur photography:an introduction

open access: yes, 2012
As an introduction to the Reconsidering Amateur Photography strand of the National Media Museum's EitherAnd website, this conversation between Annebella Pollen and Juliet Baillie frames the core theories, debates and challenges in the area of ...
Baillie, Juliet   +1 more
core  

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