Results 51 to 60 of about 298,868 (346)

The influence of self-pollen deposition on female reproductive success in a self-incompatible plant, Akebia quinata

open access: yesFrontiers in Plant Science, 2022
Geitonogamy is inevitable in hermaphrodite and monecious. Even for self-incompatible species, the negative effects of self-pollen are unavoidable when geitonogamous or self-mating occurs.
Chun-Hui Wang   +4 more
doaj   +1 more source

RALF4/19 peptides interact with LRX proteins to control pollen tube growth in Arabidopsis

open access: yesScience, 2017
Timing a switch in tissue integrity In plants, sperm cells travel through the pollen tube as it grows toward the ovule. Successful fertilization depends on the pollen tube rupturing to release the sperm cells (see the Perspective by Stegmann and Zipfel).
M. Mecchia   +10 more
semanticscholar   +1 more source

Homeostasis of Gut Microbiota Protects against Susceptibility to Fungal Pneumonia

open access: yesAdvanced Science, EarlyView.
Fungal pneumonia induces inflammation, shown by heightened IL‐6, IL‐1β, TNF‐α levels and a growth in Staphylococcus in the alveolar flora. The gut microbiota, acting through the gut‐lung axis via blood, impacts fungal pneumonia susceptibility by altering lung metabolism and inflammatory responses.
Jian Ji   +12 more
wiley   +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

Sensitivity of sorghum pollen and pistil to high-temperature stress.

open access: yesPlant, Cell and Environment, 2018
High temperature (HT) decreases seed set percentage in sorghum (Sorghum bicolor [L.] Moench). The relative sensitivity of pollen and particularly pistil and the mechanistic response that induces tolerance or susceptibility to HT are not well known and ...
M. Djanaguiraman   +6 more
semanticscholar   +1 more source

Advanced Pharmaceutical Nanotechnologies Applied for Chinese Herbal Medicines

open access: yesAdvanced Science, EarlyView.
This review offers a comprehensive overview of pharmaceutical nanotechnology strategies to address limitations associated with the complex material basis and relative mild therapeutic efficacy of Chinese herbal medicines, and summarizes the advantages of these strategies.
Jiameng Li   +11 more
wiley   +1 more source

Footprint areas of pollen from alder (Alnus) and birch (Betula) in the UK (Worcester) and Poland (Wrocław) during 2005–2014

open access: yesActa Agrobotanica, 2015
In this study we analyzed daily pollen concentrations of Alnus spp. and Betula spp. from Worcester, UK and Wrocław, Poland. We analyzed seasonality, annual pollen index and footprint areas for the observed pollen concentrations by using the trajectory ...
Carsten Ambelas Skjøth   +6 more
doaj   +1 more source

Bionic Nanostructures Create Mechanical Signals to Mediate the Composite Structural Bone Regeneration Through Multi‐System Regulation

open access: yesAdvanced Science, EarlyView.
Inspired by the structural and functional characteristics of bone, bionic nanomaterials combined with nanotechnology can more accurately replicate stem cell niches, enabling the design of bone tissue engineering scaffolds with diverse nanoscale properties to promote stem cell migration, proliferation, and differentiation. This precise control over stem
Yangfan Pei   +11 more
wiley   +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

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