HPW Retrospectacles 2018 – November

From “Friendly” Bacteria To Plants In The “Fast-Lane”. A key word in the plant science news of November 2018 appears to be “heat”…from how hot temperatures affects plant genetics to how hot (as in spicy) plants may be used for pain relief. Also featured in last November’s news was how…

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HPW Retrospectacle 2018 – October

From Taller Arctic Plants To GMO Organic Farming. A recurring topic in the plant science news of last October seemed to be “big”, as in Arctic plants may be getting bigger due to a warming climate, or making bigger fruit using genetic engineering. Speaking of GMO’s, the idea of organic…

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The Selfish Plant 3 – Self-Incompatibility and Kin Recognition

When No Really Means No (In Plants) When it comes to sexual reproduction, nearly half of all flowering plant species are self-incompatible. That is, the pollen (male parts of flowers) produced by an individual plant is somehow recognized by the plant and rendered ineffectual in self-fertilizing the ovules (female parts…

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Do Leaf Bacteria Fertilize Plants?

The “Inside” Story? An article in Science magazine (see Ref. 1 below) reports evidence supporting the hypothesis that leaf-dwelling, nitrogen-fixing bacteria may provide host plants with significant amounts of nitrogen. In the past, we briefly explored the microbial phyllosphere, that is, the microbes – including nitrogen-fixing cyanobacteria – that dwell…

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