Entries by Linda Palmer

To form a more perfect union – Auxin orchestrates corolla tube fusion

Ding et al. investigate the developmental genetics of corolla tube formation in monkeyflowers (Mimulus). The Plant Cell (2020). https://doi.org/10.1105/tpc.18.00471   By Baoqing Ding and Yao-Wu Yuan, University of Connecticut Background: About one third of all angiosperm species produce flowers with petals fused into a structure called the corolla tube. The tremendous diversity of corolla tube […]

Plant Polarity at the Single Cell and Tissue Levels

Cheng et al. demonstrate that a fully functional ROP fluorescent fusion protein marks future polarity sites 1–2 cell cycles ahead of growth. The Plant Cell (2020) https://doi.org/10.1105/tpc.20.00440.  By Xiaohang Cheng and Magdalena Bezanilla  Background: Unlike animals, plants can’t simply run away from their surroundings. To adapt, they must change their growth pattern. Polarity at the […]

Exploring variation in a key maize regulator of floral form

María Jazmín Abraham-Juárez, Amanda Schrager-Lavelle et. al. explore how variation in a key floral regulator affects floral development, downstream gene expression and protein complex assembly in maize. Plant Cell https://doi.org/10.1105/tpc.20.00300  by Jazmin Abraham-Juarez, Biology Department, University of Massachusetts Amherst, USA, and CONACYT-IPICYT, San Luis Potosi, Mexico  Background. The regulatory network that controls floral organ formation […]

Sometimes “jammed paper” can be a good thing: functional interactions between pectins and cellulose in the plant cell wall

Du et al. explore how pectins interact with cellulose in the plant cell wall. Plant Cell https://doi.org/10.1105/tpc.20.00252 By Juan Du1 and Charles T. Anderson2,3 1Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, P. R. China 2Center for Lignocellulose Structure and Formation, The Pennsylvania State University, […]

Useless no more: infertile spikelets contribute to grain yield in a major food crop and its relatives

AuBuchon-Elder and Coneva et al. reveal an important function for apparently non-functional floral structures. Plant Cell https://doi.org/10.1105/tpc.20.004242 By Taylor AuBuchon-Elder1,*, Viktoriya Coneva1,2*, Doug K. Allen1,3†, and Elizabeth A. Kellogg1† 1Donald Danforth Plant Science Center, 975 North Warson Rd., St. Louis, MO 63132, USA 2Current address: CTC Genomics LLC, St. Louis, MO 63132 USA 3USDA-ARS, 975 […]

The sweet smell of sucrose transport during rose petal abscission

Liang et al. demonstrate that auxin modulates sucrose transport to repress petal abscission in rose. The Plant Cell (2020).  https://doi.org/10.1105/tpc.19.00695 By Yue Liang, Chuyan Jiang, Yang Liu, Yuerong Gao, Jingyun Lu, Palinuer Aiwail, Zhangjun Fei, Cai-Zhong Jiang, Bo Hong, Chao Ma and Junping Gao. Background: Abscission, a common process in plants, involves the detachment of […]

Together at last: The UPR and HSR

Li et al. identify a link between the unfolded protein response and the heat shock response. Plant Cell https://doi.org/10.1105/tpc.20.00260 By Zhaoxia Li and Stephen Howell Plant Sciences Institute, Iowa State University, Ames, Iowa USA   Background: In the face of climate change, heat stress tolerance is a critical trait in crop plants. Plants have evolved different […]

A Tip-Localized Phospholipid Is Key for Polar Growth of Pollen Tubes

Zhou et al. demonstrate that phosphatidylserine regulates Rab GTPase-mediated vesicle trafficking and polar growth of pollen tubes. Plant Cell https://doi.org/10.1105/tpc.19.00844 Background: Pollen tube growth is an indispensable event during double fertilization in flowering plants. This peculiar polarized cell growth, in which the elongation occurs only at the tip area and the growth rate is exceedingly […]

A Toolkit for Proximity-Dependent Biotinylation in Plants

In a systematic multi-lab study, Arora et al. apply a variety of proximity-dependent biotin labelling approaches using several different plant systems and bait proteins, to demonstrate its wide applicability for the plant community. Plant Cell https://doi.org/10.1105/tpc.20.00235. Background: Protein-protein interaction studies rely on preserving the interaction between the bait and prey proteins throughout the process of […]