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New Phytologist, Volume 247, Issue 1, Page 233-248, July 2025.Summary Pathogenesis‐related (PR) proteins are diverse stress‐ or pathogen‐induced proteins. Some are associated with specialised metabolism, including proposed functions for anthocyanin biosynthesis. However, data are limited to a few angiosperm species, and the mode(s) of action are uncertain.
Yanfei Zhou +8 more
wiley +1 more source
Inorganic polyphosphates in pollen tubes
Acta Societatis Botanicorum Poloniae, 2015 openaire +5 more sources
Nectar metabolomes contribute to pollination syndromes
New Phytologist, Volume 247, Issue 2, Page 951-967, July 2025.Summary ‘Pollination syndromes’, where convergent floral signals reflect selection from a functional pollinator group, are often characterized by physical features, yet floral rewards such as nectar may also reflect selection from pollinators. We asked whether nectar chemistry shows evidence of convergence across functional pollinator groups, i.e.
Fiona T. MacNeill +3 more
wiley +1 more source
Plant Biotechnology Journal, Volume 23, Issue 7, Page 2485-2500, July 2025.Summary Sapindus is an important forest tree genus with utility in biodiesel, biomedicine, biochemistry and forestry. Similar to many perennial crop plants, its breeding is hampered by long generation times and lack of genetic resources. To understand the genome evolution underlying the important bioeconomic traits, we carried out a common garden ...
Jiming Liu +15 more
wiley +1 more source
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A Fruitful Journey: Pollen Tube Navigation from Germination to Fertilization.
Annual Review of Plant Biology, 2019In flowering plants, pollen tubes undergo tip growth to deliver two nonmotile sperm to the ovule where they fuse with an egg and central cell to achieve double fertilization.
Mark A. Johnson +2 more
semanticscholar +1 more source
Staining Germinating Pollen and Pollen Tubes
Stain Technology, 1958Germinating pollen on stigmas and pollen tubes in styles of Antirrhinum, Brassica, Oenothera, Raphanus, Rosa, solatium and Tagetes spp. were prepared for examination as follows: The styles were fixed in ethyl alcohol-acetic acid 3:1 for 1 hr, and hydrolyzed at 60°C for 5 to 60 min (depending on the species) in 45% acetic acid.
P. B. Spicer, L. A. Dionne
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Keeping pollen tubes on track [PDF]
Nature Plants, 2020 A major question in plant reproduction is how pollen tubes perceive and decode female cues from the ovule for directional delivery of sperm cells. MILDEW RESISTANCE LOCUS-O proteins regulate pollen tube guidance by decoding ovular signals.
Yan Ju, Sharon A. Kessler
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2010
Pollen tubes grow rapidly in a strictly polarized manner as they transport male reproductive cells through female flower tissues to bring about fertilization. Vegetative pollen tube cells are an excellent model system to investigate processes underlying directional cell expansion.
Mark A. Johnson, Benedikt Kost
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Pollen tubes grow rapidly in a strictly polarized manner as they transport male reproductive cells through female flower tissues to bring about fertilization. Vegetative pollen tube cells are an excellent model system to investigate processes underlying directional cell expansion.
Mark A. Johnson, Benedikt Kost
openaire +2 more sources
Pollen mitosis and pollen tube growth inhibition by SO2 in cultured pollen tubes of Tradescantia
Environmental Research, 1976Abstract Mature pollen of Tradescantia paludosa Anders. Sax clone-3 was collected from greenhouse grown plants and desiccated in the dark for 4–5 hours. The pollen was sown on microslides coated with lactose agar medium (supplemented with 0.02% colchicine).
Te-Hsiu Ma, Shaukat H. Khan
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1960
In 1694, Camerarius reported that anthers play the role of male sexual organs in plants (Maheshwari, 1950). Later, AMICI observed pollen tubes travelling through the stigma and style of Portulaca oleracea and in 1830 he concluded that pollen tubes elongate and ultimately come in contact with the ovule (Maheshwari, 1950). Since then the work of numerous
I. K. Vasil, B. M. Johri
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In 1694, Camerarius reported that anthers play the role of male sexual organs in plants (Maheshwari, 1950). Later, AMICI observed pollen tubes travelling through the stigma and style of Portulaca oleracea and in 1830 he concluded that pollen tubes elongate and ultimately come in contact with the ovule (Maheshwari, 1950). Since then the work of numerous
I. K. Vasil, B. M. Johri
openaire +2 more sources