Results 131 to 140 of about 130,253 (242)

Callose (β-1,3 glucan) is essential for Arabidopsis pollen wall patterning, but not tube growth [PDF]

open access: yes, 2005
Background: Callose (β-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that ...
Swanson, Rob
core   +2 more sources

Arabidopsis RIC1 Severs Actin Filaments at the Apex to Regulate Pollen Tube Growth

open access: yesThe Plant Cell, 2015
RIC1 regulates pollen tube growth through its F-actin severing and capping activities, which contributes to the dynamics and abundance of F-actin in the tip of pollen tubes. Pollen tubes deliver sperms to the ovule for fertilization via tip growth.
Zhenzhen Zhou   +5 more
semanticscholar   +1 more source

Optimising the seed production cycle of Delphinium elatum L. : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Plant Biology at Massey University, Palmerston North [PDF]

open access: yes, 2005
Delphinium elatum L. (Ranunculaceae) hybrids are developed by Dowdeswell's Delphiniums located at 692 Brunswick Road. Wanganui (www.delphinium.co.nz), who grow delphiniums for seed export. Development of new cultivars is important for commercial purposes,
Bedford, Katharine
core  

Effects of Gamma Radiation on Salix nigra Marsh Cuttings [PDF]

open access: yes, 1985
Dormant cuttings of Salix nigra Marsh, were exposed to gamma radiation from a cobalt-60 source at a dose rate of 1110 roentgens (r) per minute. Exposure doses ranged from 50 r through 100 Kr with 100% mortality at 10 Kr.
Gehring, Roy Z.
core   +2 more sources

Pollen tube growth in mandarin

open access: yes, 2004
Pollen tube growth was studied in cvs. Monica, Reyna, Dancy, and Satsuma mandarin (Citrus reticulata unshiu Marc). Pollen tubes were stained with lacmoid and observed with a white light microscope. Lacmoid stained the callose brilliant blue. Pollen grains deposited on the stigma varied from 367 to 4170 among the four cultivars.
Norma Lidia Gómez Alvarado   +4 more
openaire   +1 more source

Editorial: Regulation of pollen tube growth, volume II. [PDF]

open access: yesFront Plant Sci, 2023
Del Duca S   +2 more
europepmc   +1 more source

Differential sensitivity of ADF isovariants to a pH gradient promotes pollen tube growth. [PDF]

open access: yesJ Cell Biol, 2023
Wang J   +7 more
europepmc   +1 more source

The Biology of Canadian Weeds. 131. \u3cem\u3ePolygonum aviculare\u3c/em\u3e L. [PDF]

open access: yes, 2005
A review and assessment of biological information as well as personal data are provided for Polygonum aviculare in Canada. The species has been revised taxonomically and the six subspecies that occur in Canada are presented.
Costea, Mihai, Tardif, François J.
core   +1 more source

Pollen tubes growth in almond flowers

open access: yesCalifornia Agriculture, 1975
A two-year study indicated that, under orchard conditions, it takes 96 to 120 hours for pollen tubes to grow through the styles of almond flowers. In view of a rapid decline in receptivity, probably the result of embryo sac degeneration, it is assumed that the sooner the flower is cross-pollinated after opening, the greater the chance of fertilization ...
W Griggs, B Iwakiri
openaire   +1 more source

Home - About - Disclaimer - Privacy