Entries by Plant Cell

A fresh mechanism for drought tolerance in apple

Niu, Jiang, Cao et al. discover the role of a ferredoxin-NADP+ oxidoreductase gene in drought tolerance in apple. Background: Global climate change and rapid population growth have been increasing the shortage of water resources, enhancing the effects of natural disasters such as drought. Drought stress seriously affects the growth and fruit yield of apples. The […]

Brassinosteroids in the organization of rice internodes

Niu et al. discovered how the organization of rice internodes is regulated by the steroid hormone brassinosteroid. The Plant Cell (2022) By Mei Niu and Hongning Tong Background: Rice culms consist of 5–7 internodes and the length of these internodes determines plant height and resistance to wind, which is crucial for field performance. Brassinosteroid (BR) […]

DNA demethylation is important for imprinted gene expression in maize endosperm but may do more

Gent et al. characterize a classical maize mutant and find insights into genomic imprinting and DNA methylation in endosperm Jonathan I. Gent, Department of Plant Biology, University of Georgia, Athens, GA 30602, USA  Background: In 1970, Jerry Kermicle reported that maize kernels could have dramatically different pigmentation depending on which parent the r1 gene is […]

Structure-based RNA transport into the nucleus

Junfei Ma, Shachinthaka D. Dissanayaka Mudiyanselage and Ying Wang (Department of Biological Sciences, Mississippi State University) Background: During the course of evolution, eukaryotic cells gained a nuclear envelope to protect their genomes. However, to coordinate diverse biological processes, cellular contents need to communicate between the nucleus and the cytoplasm. The nuclear/cytoplasmic shuttling of proteins has […]

A sensor for inhibition of symbiosis when phosphate is plentiful

Liao et al. describe a sensor complex that coordinates phosphate signaling and arbuscular mycorrhiza symbiosis. Background: Arbuscular mycorrhiza (AM) symbiosis is a widespread phenomenon in terrestrial plants that improves the acquisition of mineral nutrients. Successful symbiosis with AMs enhances the tolerance of host plants to biotic and abiotic stresses. Unfortunately, AM symbiosis usually occurs only […]

Discovering autophagy protein cargo by protein turnover analysis in Arabidopsis

Li et al. explore the nature of proteins that accumulate in mutants deficient in autophagy machinery. Plant Cell Lei Li1,2 and A. Harvey Millar2 Frontiers Science Center for Cell Responses, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, 300071 Tianjin, China. ARC Centre of Excellence in Plant Energy Biology, School of […]

Seed size controlling signal transduction pathway identified

Wu and Cai et al. reveal that the receptor-like kinase ERECTA regulates seed size in Arabidopsis. Xuedan Wu and Wenqiang Tang Institution College of Life Sciences, Hebei Normal University Background: Background: Seed development begins with double fertilization. Double fertilization releases a yet-to-be identified signal that triggers cell proliferation followed by cell expansion of outer integument […]

The secret sex life of plants: the AP complexes and the building of the pollen cell wall

Liu et al. explore the role of adaptins in plant development. Chan Liu*1 and Marisa Otegui*2 *1Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China *2Department of Botany and Center for Quantitative Cell Imaging, University of Wisconsin-Madison WI 53706 Background: Adaptor protein (AP) complexes are critical for the recruitment […]

A mechanism that precisely guides pollen tube growth

Yang et al. investigate the role of the phospholipid flippase ALA3 in pollen tube guidance in Arabidopsis.    Background: In flowering plants, pollen tube guidance regulates the rapid growth and timely targeting of the pollen tube to the ovule in the pistil during sexual reproduction, when signaling between the male and female gametophytes occur. The […]