Results 111 to 120 of about 508,605 (311)

Pollen tube incompatibility reaction on the stigma in selfpollinated Sinapis alba L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
After selfpollination of Sinapis alba L. pollen tubes growth is inhibited on the stigma. The pollen grains germinate 3-4 hours after pollination. The pollen give rise to one or more pollen tubes. They grow along the papillae.
Renata Śnieżko, Krystyna Winiarczyk
doaj   +1 more source

The Microtubular Cytoskeleton during Pollen Development and Pollen Tube Growth in Nicotiana tabacum

open access: yes, 1992
The role of the male partner in the fertilization process in higher plants has been defined from long time (Stanley and Linskens, 1972). As shown by optical and ultrastructural investigations, some closely related steps such as pollen development, pollen
Antonio Tiezzi   +11 more
core   +1 more source

Comprehensive analysis of microtubule‐inhibiting herbicides reveals shared subcellular phenotypes and distinct resistance profiles

open access: yesPest Management Science, EarlyView.
Using cellular phenotyping and resistance profiling, we show that herbicides across the Herbicide Resistance Action Committee (HRAC) Groups 3 and 23 induce indistinguishable, dose‐dependent microtubule defects. Resistance patterns, rather than cellular phenotypes, reveal distinct sites of action and support reclassifying Group 3 as α‐tubulin binders ...
Katharina Kaprocki   +6 more
wiley   +1 more source

Presence and abundance of airborne Botryosphaeriaceae conidia are governed by temperature and season in the Okanagan Valley, Canada

open access: yesPest Management Science, EarlyView.
Presence and abundance of Botryosphaeria dieback inoculum were determined using spore trapping and droplet digital polymerase chain reaction in British Columbia, Canada. Highest inoculum was recorded in spring (April–June) and again in summer (July–September). These results suggest early pruning in December–January can mitigate pruning wound infections.
Isidora Silva‐Valderrama   +5 more
wiley   +1 more source

Characterization of a novel R98Q mutation that confers resistance to sulfentrazone in common ragweed (Ambrosia artemisiifolia) populations from Michigan

open access: yesPest Management Science, EarlyView.
Field‐collected Ambrosia artemisiifolia populations from Michigan, USA, soybean fields exhibited strong resistance to the protoporphyrinogen IX oxidase (PPO)‐inhibiting herbicide sulfentrazone and reduced sensitivity to fomesafen. Target‐site analysis identified a novel Arg‐98‐Gln (R98Q) substitution in PPO2, co‐occurring with the previously reported ...
Sara Álvarez‐Rodríguez   +4 more
wiley   +1 more source

Transformation of Lagerstroemia indica by improved Agrobacterium-mediated floral-dip and pollen-tube pathway method

open access: yes浙江大学学报. 农业与生命科学版, 2012
Lagerstroemia indica was transformed by an improved Agrobacterium-mediated floral-dip and pollen-tube pathway method, respectively, using green fluorescent protein gene (GFP) as a report gene, and its fruit number, rate of seed-setting set and seedling ...
CHEN Yan, SUN Kuan-ying, ZHANG Tao
doaj   +1 more source

Youngstown Sheet and Tube Company's Hubbard Works

open access: yes, 1910
This is an early photograph of Youngstown Sheet and Tube Company's Hubbard Works, in Hubbard, Ohio, ca. 1910-1919. Part of Youngstown Sheet and Tube Company's Youngstown District, the Hubbard Works was one of the first steel mills acquired by ...
Youngstown Sheet and Tube Company
core  

Pollen characterisation of Maltese honey [PDF]

open access: yes, 2013
In 2004 and 2005, pollen characterisation of 35 samples of honey collected from the islands of Malta and Gozo, was carried out with the aim to identify the botanical origin of honey produced on these islands.
Mifsud, David   +2 more
core   +1 more source

Inheritance and stability of Cry2Ab2 resistance in an Ostrinia nubilalis strain originating from Wisconsin, U.S.

open access: yesPest Management Science, EarlyView.
Resistance to Cry2Ab2 protein in Ostrinia nubilalis is autosomal, functionally recessive, controlled by a single gene, and remains stable over 17 generations in the absence of Cry2Ab2 selection pressure. Abstract BACKGROUND Transgenic corn expressing insecticidal proteins from the bacterium Bacillus thuringiensis (Bt), including Cry1Ab, Cry1Fa and/or ...
Tatum Dwyer   +3 more
wiley   +1 more source

Air investigation of some alternative methods to agrobacterium and protoplast transformation for introducing exogenous genes into plants, based on the use of pollen as a vector [PDF]

open access: yes, 1987
Some of the problems involved in the search for alternative plant transformation vectors have been examined. In particular the use of pregerminated pollen as a direct transformation vector has been investigated.
Morris, S.R.
core  

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