Recent Posts

Auxin Affects Capitulum Pattern Formation

The flower head (capitulum) is a morphological feature that defines the family Asteraceae (the daisy or sunflower family). A typical capitulum consists of many flowers (florets) and phyllaries (modified bracts) compressed into a single structure that mimics a single flower. Capitula commonly have two…

The secret of NIN (Nodule Inception) ($) (Plant Cell)

Twenty years ago, a genetic screen of Lotus japonicas identified NIN (NODULE INCEPTION), a transcription factor required for both early (infection thread) and late (nodule primordium development) stages of nodule formation. In daphne (a weak allele of NIN), infection threads form but not nodule primordia,…

Local auxin biosynthesis is a key regulator of plant development ($) (Devel Cell)

Morphogenic gradients of auxin are essential for plant phenotypic plasticity. Polar auxin transport plays a central role in auxin maxima generation. The exquisite spatiotemporal expression patterns of auxin biosynthesis genes suggested that local sources of auxin may contribute to the formation of auxin…

Review: The evolution of root branching: increasing the level of plasticity (J Exp Bot) ($)

Without roots, plants are unable to gain height due to poor anchorage and are less fit for survival outside of humid environments. Root branching allows plants to better adapt to their environmental conditions and improves their capability to forage for water and nutrients. In this review, Motte and…

Exploring Pollen Patterns to Learn How Cells Create Distinct Domains

Lee et al. identify a protein involved in pollen aperture development and the formation of distinct membrane domains in microspores. https://doi.org/10.1105/tpc.18.00442  By Byung Ha Lee and Anna Dobritsa Background: Pollen grains are famous for their ability to develop various intricate patterns…

SUMO Aids Rapid Regulation of Hormone Responses

Srivastava et al. identify a mechanism for rapid regulation of jasmonic acid signaling. Plant Cell  https://doi.org/10.1105/tpc.18.00036 Background: The sessile nature of plants dictates that growth must be integrated with changes in the natural environment. Modulation of hormone signalling pathways…

Programmed Cell Death in the Root Cap

Huysmans et al. identify cell death regulatory proteins in root cap cells. Plant Cell https://doi.org/10.1105/tpc.18.00293 Background: Some plants, such as giant sequoia trees, can grow into the “Largest Living Things on Earth.” Ironically, most of a tree’s biomass is actually not alive but…

PGI1 is a Determinant of Seed Yield

Bahaji et al. identify an important player determining seed yield in Arabidopsis. https://doi.org/10.1105/tpc.18.00312 Background: Oilseeds are major sources of calories for human consumption and have a significant agricultural and industrial value. Seed number and weight are the two main components…

Nectary Development in Petunia and Arabidopsis, a Sweet Story!

Morel et al. study the nectar-producing organs in flowers and identify major regulators of nectary size https://doi.org/10.1105/tpc.18.00425 By Patrice Morel and Michiel Vandenbussche Background: Nectaries are the organs that produce nectar, a sugary substance that motivates pollinators such as…