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南京农业大学农学院《Nature Communications》发表万建民院士团队“OsSRF8 interacts with OsINP1 and OsDAF1 to regulate pollen aperture formation in rice”（图）
万建民 分子机制 基因 遗传
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2024/6/11
2024年5月28日，南京农业大学万建民院士团队在Nature Communications在线发表了题为“OsSRF8 interacts with OsINP1 and OsDAF1 to regulate pollen aperture formation in rice”的研究论文，揭示了OsINP1-OsSRF8-OsDAF1分子模块调控水稻花粉萌发孔形成的分子机制。
LARP6C orchestrates posttranscriptional reprogramming of gene expression during hydration to promote pollen tube guidance
LARP6C gene expression posttranscriptional regulation pollination fertilization
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2023/12/1
Increasing evidence suggests that posttranscriptional regulation is a key player in the transition between mature pollen and the progamic phase (from pollination to fertilization). Nonetheless, the ac...
GhGPAT12/25 Are Essential for the Formation of Anther Cuticle and Pollen Exine in Cotton (Gossypium hirsutum L.)
GhGPAT12 GhGPAT25 陆地棉 旁系同源基因
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2024/4/16
GhGPAT12和GhGPAT25为一对位于陆地棉A12/D12染色体上编码甘油-3-磷酸酰基转移酶（GPAT）的旁系同源基因。GhGPAT12/25在发育早期的花药中特异表达，其转录本主要富集于绒毡层和花粉外壁。真核表达实验表明GhGPAT12/25具有sn-2酰基转移酶活性。CRISPR/Cas9介导的基因敲除实验发现GhGPAT12和GhGPAT25存在功能冗余，两基因的同时敲除导致彻底的雄...
Pollen-sized technology protects bees from deadly insecticides（图）
花粉大小 蜜蜂 杀虫剂
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2023/5/24
A Cornell-developed technology provides beekeepers, consumers and farmers with an antidote for pesticides, some of which may kill wild bees and can contribute to beekeepers losing around a third of th...
Modern computational tools open new era of fossil pollen research（图）
Modern computational tools new era fossil pollen
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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...
Fossil pollen samples suggest vulnerability to extinctions ahead（图）
Fossil pollen samples suggest vulnerability extinctions ahead
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2020/9/4
Reduced resilience of plant biomes in North America could be setting the stage for the kind of mass extinctions not seen since the retreat of glaciers and arrival of humans about 13,000 years ago, cau...
Spring rains:A surprising source of pollen（图）
Spring rains surprising source pollen
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2020/6/5
Springtime rains can be a surprising source of pollen, according to research supported by the National Science Foundation.University of Iowa researchers report that tree pollen fragments remain in the...
SCR-22 of pollen-dominant S haplotype class is recessive to SCR-44 of pollen-recessive S haplotype class in Brassica rapa
SCR-22 pollen-dominant S haplotype SCR-44 Brassica rapa
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2023/8/9
SCR/SP11 encodes the male determinant of recognition specificity of self-incompatibility (SI) in Brassica species and is sporophytically expressed in the anther tapetum. Based on dominance relationshi...
Negative correlations between the susceptibilities of Czech and Slovak pollen beetle populations to lambda-cyhalothrin and chlorpyrifos-ethyl in 2014 and 2015
Meligethes aeneus pyrethroid resistance susceptibility to organophosphates IRAC adult vial tests
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2017/4/6
Sixty-five Czech Meligethes populations were tested against lambda-cyhalothrin and chlorpyrifos-ethyl in 2014. In 2015, totally sixty Meligethes populations, some of which sampled also in Slovakia, we...
Dihaploid induction in tetraploid durum wheat (Triticum durum L.) using pollen of Imperata cylindrica
2,4-dichlorophenoxyacetic acid (2,4-D) haploid induction pseudoseed formation wide hybridization
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2015/12/29
Doubled haploidy breeding protocols have revolutionized the varietal development programmes in bread wheat, however, the protocols have not proved much efficient in durum wheat. Presently, the durum w...
Scientists discover ancient safety valve linking pollen to bacteria
Scientists ancient safety valve pollen to bacteria
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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...
Assessment of pollen viability and germinability in some European chestnut genotypes (Castanea sativa L.)
Castanea sativa L. pollen viability pollen germination
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2015/1/24
Pollen viability and germinability in some European chestnut genotypes was assessed in this study. In 10 chestnut genotypes, percentages of pollen viability were generally high and often around or ove...
Investigations of suitable pollinator for 0900 Ziraat sweet cherry cv.: pollen performance tests, germination tests, germination procedures, in vitro and in vivo pollinations
Prunus avium L. pollen fertilization biology
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2015/1/22
The objective of this study was to determine suitable cultivars to be used as pollinators for 0900 Ziraat. 0900 Ziraat was used as a female cultivar; Bigarreu Gaucher, Bing, Noble, Starks Gold, Stella...
Functional Analysis of Receptor-like Kinases in Pollen-Pistil Interactions in Arabidopsis thaliana
pistil synergids ROS pectin
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2015/1/6
Rac/Rop GTPases are molecular switches in plants that control the growth of polarized cells such as pollen tubes and root hairs, differentiation, development, actin dynamics, production of reactive ox...
EMPOL 1.0: a new parameterization of pollen emission in numerical weather prediction models
pollen emission numerical weather prediction
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2014/12/12
Simulating pollen concentrations with numerical
weather prediction (NWP) systems requires a parameterization for pollen emission.