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How rice germinates under water

How rice germinates under water

ADH1 and carbohydrate metabolism in seeds of rice

ADH1 and carbohydrate metabolism in seeds of rice

Rice (Oryza sativa) has the rare ability to germinate and elongate a coleoptile under oxygen-deficient conditions, which include both hypoxia and anoxia. It has previously been shown that Alcohol Dehydrogenase 1 (ADH1) is required for cell division and cell elongation in the coleoptile of submerged rice seedlings by means of studies using a rice…

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Sugar versus Auxin: which is dominant?

Sugar versus Auxin: which is dominant?

Image: Wikimedia Commons.

Image: Wikimedia Commons.

Of the plethora of aspects of plant growth and development that the hormone (OK, plant growth regulator…) auxin is implicated in/involved with (e.g. embryo development, leaf formation, phototropism, gravitropism, fruit development, abscission, root initiation and development…), surely one of the most enduring is apical dominance.

Apical dominanceis the phenomenon whereby…

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Developmental robustness and species diversity: A special issue of Annals of Botany open for submissions

Developmental robustness and species diversity: A special issue of Annals of Botany open for submissions

Magnolia flowers

Flowers from the same Magnolia tree have different numbers of perianth organs, indicative of a low degree of robustness in perianth organ number determination.
Photos by Susanne Schilling.

J.B.S. Haldane is often quoted to have said that ‘God has an inordinate fondness for beetles’. Arguably, Haldane himself would not have accepted this as an explanation for the enormous number of beetle species –…

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Genome downsizing and karyotype constancy in diploid and polyploid congeners: a model of genome size-variation

Genome downsizing and karyotype constancy in diploid and polyploid congeners: a model of genome size-variation

DCIM100MEDIADCIM100MEDIAIn several genera evolutionary chromosome change involves variation in DNA amount in diploids and genome downsizing in polyploids. In a new study in AoB PLANTS, Poggio et al. analysed the genome size and karyotypical parameters of Hippeastrumspecies with different ploidy levels.The constancy of bimodal karyotypes, even with changes in ploidy level, and DNA content per basic genome indicate that…

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Dodgy pictures dog phytology

Dodgy pictures dog phytology

Image: Wikimedia Commons.

Image: Wikimedia Commons.

It has oft been claimed that a picture is worth a thousand words. In the case of certain images in Klementina Kakar et al.’s studyentitled ‘CLASP-mediated cortical microtubule organization guides PIN polarization axis’ it seems quite clear that many more than a thousand words have been written about them. Why? The normally genteel world of botanical research has been…

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Seeing the Forest and the Trees: Research on Plant Science Teaching and Learning

Seeing the Forest and the Trees: Research on Plant Science Teaching and Learning

CBE Life Sci Educ The September issue of CBE—Life Sciences Education is a Special Focus edition on plant science education:

Plant Behavior. CBE Life Sci Educ September 2, 2014 13:363-368; doi:10.1187/cbe.14-06-0100
Plants are a huge and diverse group of organisms ranging from microscopic marine phytoplankton to enormous terrestrial trees. Stunning, and yet some of us take plants for granted. In this plant issue of…

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