Entries by Linda Palmer

Ferroptotic Cell Death Occurs in Plants

Dangol et al. demonstrate that Magnaporthe oryzae infection induces iron- and reactive oxygen species-dependent ferroptotic cell death in rice. Plant Cell https://doi.org/10.1105/tpc.18.00535 By S. Dangol, Y. Chen, B. K. Hwang, and N. S. Jwa   Background: Cell death is the intracellular program of biological events leading to the termination of cell’s life processes. Plant cell […]

Lipids and Auxin Signaling in Plant Salt Responses

Wang et al. highlight the importance of lipid protein interactions in spatiotemporal regulation of auxin signalling. Plant Cell https://doi.org/10.1105/tpc.18.00528 By Peipei Wang and Qun Zhang Background:  Salt stress inhibits plant growth and development, leading to many physiological reactions. To cope with salt stress, plants have evolved several adaptive mechanisms, including the SOS system, plant hormones, […]

A Transcriptional Module Regulates Embryo and Suspensor Development

Radoeva et al. investigate a transcription module that controls aspects of embryogenesis in plants. Plant Cell https://doi.org/10.1105/tpc.18.00518.   Background: After the start of embryo development in plants, which is marked by fertilization of the egg cell, the resulting zygote divides asymmetrically into a small apical embryonic cell and a larger basal extra-embryonic (suspensor) cell. The […]

How does ABA activate a calcium/calmodulin-dependent kinase in rice?

Ni et al. reveal a pathway for ABA-activated OsDMI3 in rice. Plant Cell https://doi.org/10.1105/tpc.18.00506  By Lan Ni and Mingyi Jiang Background: Abscisic acid (ABA) is a phytohormone that plays important roles both in plant growth and development and in plant responses to environmental stresses. Cytosolic Ca2+, a second messenger involved in ABA signaling, is detected, […]

Regulation of JA-Signaled Transcription: Repression, Activation and Termination

Liu et al. elucidate the mechanism of the termination of JA signaling by a MYC2-MTB feedback loop. Plant Cell https://doi.org/10.1105/tpc.18.00405   By Yuanyuan Liu, Qingzhe Zhai and Chuanyou Li Background: Plants are often surrounded by hostile environment including abiotic and biotic stresses. Jasmonate (JA) is a lipid-derived plant hormone that regulates plant immunity by triggering […]

Tomato vs. the generalist pathogen Botrytis cinerea

Soltis et al. explore the genetic interactions of the gray mold, Botrytis cinerea, with wild and domesticated tomato. Plant Cell https://doi.org/10.1105/tpc.18.00857 By Nicole E. Soltis and Daniel J. Kliebenstein, Plant Biology Graduate Group and Department of Plant Sciences, University of California, Davis, CA. Background: The plant-pathology research community has a good understanding of how plant […]

Chloroplasts working in the shade

Ortiz-Alcaide et al. report that light and retrograde pathways interact to regulate hypocotyl elongation response to shade. Plant Cell https://doi.org/10.1105/tpc.18.00617 By Jaime F. Martinez-Garcia and Manuel Rodriguez-Concepcion Background: Plant development is strongly influenced by the incoming light. Not enough light may compromise photosynthesis and hence growth, but too much light can saturate the photosynthetic capacity […]

How Cotton Protects its Chitinase from a Fungal Protease

Han et al. demonstrate that a cotton secretory protein CRR1 protects cotton Chitinase 28 from cleavage by a pathogen serine protease, VdSSEP1. Plant Cell https://doi.org/10.1105/tpc.18.00390.  By Li-Bo Han, Jun Liu and Gui-Xian Xia  Background: The apoplast is an extracellular space in plant tissues. When microbes try to infect plants, the apoplast serves as the first […]

The Battlefield in the Rice Apoplast

Yang et al. show how rice recognizes a Magnaporthe oryzae chitinase to trigger immune responses to this fungal pathogen. Plant Cell https://doi.org/10.1105/tpc.18.00382   By Chao Yang and Jun Liu Background:  Plants, like us, have an immune system that protects them from the majority of pathogen infections. Plants employ specific proteins (receptors) that recognize the conserved […]