The Significance of a Wall-bound, Hydroxyproline-containing Glyco-peptide in Lily Pollen Tube Elongation

Pollen ◽  
1971 ◽  
pp. 194-200 ◽  
Author(s):  
W.V. Dashek ◽  
H.I. Harwood ◽  
W.G. Rosen
Keyword(s):  
Pollen Tube ◽  
Lily Pollen ◽  
Pollen Tube Elongation

scholarly journals Pollen-Specific SKP1-Like Proteins are Components of Functional SCF Complexes and Essential for Lily Pollen Tube Elongation

2009 ◽  
Vol 50 (8) ◽  
pp. 1558-1572 ◽  
Author(s):  
Liang-Chi Chang ◽  
Cian-Ling Guo ◽  
Yun-Shan Lin ◽  
Hongyong Fu ◽  
Co-Shing Wang ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Lily Pollen ◽  
Pollen Tube Elongation

scholarly journals The Apical Actin Fringe Contributes to Localized Cell Wall Deposition and Polarized Growth in the Lily Pollen Tube

2014 ◽  
Vol 166 (1) ◽  
pp. 139-151 ◽  
Author(s):  
Caleb M. Rounds ◽  
Peter K. Hepler ◽  
Lawrence J. Winship
Keyword(s):  
Cell Wall ◽  
Pollen Tube ◽  
Polarized Growth ◽  
Lily Pollen ◽  
Wall Deposition ◽  
Cell Wall Deposition

scholarly journals Localised and non-localised promotion of fruit development by seeds in Arabidopsis

2006 ◽  
Vol 33 (1) ◽  
pp. 1 ◽  
Author(s):  
Catherine M. Cox ◽  
Stephen M. Swain
Keyword(s):  
Pollen Tube ◽  
Pollen Tube Growth ◽  
Seed Set ◽  
Fruit Size ◽  
Fruit Growth ◽  
Tube Growth ◽  
Gene Encoding ◽  
Pollen Tube Elongation ◽  
The Relationship ◽  
Silique Length

In Arabidopsis, as in the majority of flowering plants, developing seeds promote fruit growth. One method to investigate this interaction is to use plants with reduced seed set and determine the effect on fruit growth. Plants homozygous for a transgene designed to ectopically express a gene encoding a gibberellin-deactivating enzyme exhibit reduced pollen tube elongation, suggesting that the plant hormone gibberellin is required for this process. Reduced pollen tube growth causes reduced seed set and decreased silique (fruit) size, and this genotype is used to explore the relationship between seed set and fruit elongation. A detailed analysis of seed set in the transgenic line reveals that reduced pollen tube growth decreases the probability of each ovule being fertilised. This effect becomes progressively more severe as the distance between the stigma and the ovule increases, revealing the complex biology underlying seed fertilisation. In terms of seed-promoted fruit growth, major localised and minor non-localised components that contribute to final silique length can be identified. This result demonstrates that despite the relatively small size of the fruit and associated structures, Arabidopsis can be used as a model to investigate fundamental questions in fruit physiology.

A Lipid Transfer-Like Protein Is Necessary for Lily Pollen Tube Adhesion to an in vitro Stylar Matrix

2000 ◽  
Vol 12 (1) ◽  
pp. 151 ◽  
Author(s):  
Sang-Youl Park ◽  
Guang-Yuh Jauh ◽  
Jean-Claude Mollet ◽  
Kathleen J. Eckard ◽  
Eugene A. Nothnagel ◽  
...  
Keyword(s):  
Pollen Tube ◽  
Lipid Transfer ◽  
Lily Pollen

scholarly journals In vitro germination and viability of pea pollen grains after application of organic nano-fertilizers

2017 ◽  
Vol 32 (1) ◽  
pp. 61-65 ◽  
Author(s):  
Natalia Georgieva ◽  
Ivelina Nikolova ◽  
Valentin Kosev ◽  
Yordanka Naydenova
Keyword(s):  
Pollen Tube ◽  
Pollen Germination ◽  
Culture Media ◽  
Pollen Viability ◽  
Pollen Grains ◽  
Pollen Grain ◽  
In Vitro Germination ◽  
Pisum Sativum L ◽  
Pollen Tube Elongation

The objective of this study was to evaluate the influence of two organic nanofertilizers, Lithovit and Nagro, on in vitro germination, pollen tube elongation and pollen grain viability of Pisum sativum L cv. Pleven 4. The effect of their application was high and exceeded data for the untreated control (44.2 and 47.23 % regarding pollen germination and pollen tube elongation, respectively), as well as the effect of the control organic algal fertilizer Biofa (17.5 and 27.9 %, respectively). Pollen grains were inoculated in four culture media. A medium containing 15% sucrose and 1% agar had the most stimulating impact on pea pollen grains. Pollen viability, evaluated by staining with 1% carmine, was within limits of 74.72-87.97%. The highest viability of pollen grains was demonstrated after the application of Nagro organic nano-fertlizer.

Effect of nickel on pollen germination and pollen tube length in Arabis alpina (Brassicaceae)

2016 ◽  
Vol 64 (4) ◽  
pp. 302 ◽  
Author(s):  
Dolja Pavlova
Keyword(s):  
Pollen Tube ◽  
Pollen Germination ◽  
Pollen Grains ◽  
Tube Length ◽  
Serpentine Soils ◽  
Nutritional Medium ◽  
Arabis Alpina ◽  
Pollen Tube Elongation ◽  
Germinated Pollen ◽  
Pollen Tube Length

In this work we studied and compared the toxic effect of nickel (Ni) on pollen germination and pollen tube length in Arabis alpina L. collected from serpentine and non-serpentine populations distributed in the Rila mountains, Bulgaria. Pollen grains were treated with prepared standard solutions of 100, 300, 500, and 700 μM Ni as NiCl2 in distilled water. A nutritional medium was also used to assess pollen germination. Nickel inhibited pollen germination and pollen tube elongation in both serpentine and non-serpentine plants. The percentage of germinated pollen in serpentine plants treated with Ni was higher than in non-serpentine plants but there was no difference in pollen tube elongation between groups. However, pollen tubes showed abnormalities such as coiling and swelling of the tip, or burst, and varied considerably among the samples. A complete break of pollen tube elongation is due to such abnormalities. Also, decreased pollen fertility in both populations was found. The plants from serpentines were less sensitive to (i.e. more tolerant of) elevated Ni concentrations commonly found in serpentine soils.

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