Peng, D. Guo, Y. Guo, et al. Shui Wang, College of Life Sciences, Shanghai Normal University, Shanghai, China Background: Immune receptors recognize invading microorganisms and activate immune responses. There are two types of immune systems, innate immunity and adaptive immunity. In animals, innate immunity is activated by a finite number of the germline gene-encoded receptors, […]
Misawa, Ito, et al. explore how nitrate transporters and NIN-like protein transcription factors repress nodulation in the presence of exogenous nitrate. Momoyo Ito, Takuya Suzaki Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan Background Through symbiosis with nitrogen-fixing bacteria, legumes can use nitrogen from the atmosphere as a nutrient. However, root […]
Xu et al. identify a key transcriptional regulatory module involved in biosynthesis of the pectic polysaccharide rhamnogalacturonan I in the mucilage surrounding the Arabidopsis seed. https://doi.org/10.1093/plcell/koac011 Background: Pectin is a complex cell wall polysaccharide that plays important roles in modulating cell adhesion, cell morphogenesis, and growth. The Arabidopsis seed coat mucilage is a specialized cell […]
Choi et al. report that the Chlamydomonas bZIP transcription factor BLZ8 induces the carbon-concentrating mechanism to provide an electron sink pathway, reducing reactive oxygen species production under oxidative stress conditions. Plant Cell. https://doi.org/10.1093/plcell/koab293 By Bae Young Choi, Hanul Kim, Hideya Fukuzawa and Youngsook Lee Background: Photosynthesis involves a massive flux of high-energy electrons, which can […]
Wang et al. find an RNA 3’-terminal phosphate cyclase-like protein that participates in processing the 18S ribosomal RNA in maize. https://doi.org/10.1093/plcell/koac052 by Tao Wang and Jun Yang The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China Background: Every living cell requires ribosomes to produce proteins from amino […]
Huang et al. elucidate the relationship between fatty acid biosynthesis and seed maturation in Arabidopsis. By Ruihua Huang and Shengchun Zhang Background: Storage substances such as starch, protein, and oil in crop seeds are major sources of food for humans. These substances mainly accumulate in seeds during the maturation stage. The transcription factor WRINKLED1 (WRI1) is […]
Peng et al. discover that COP1, a central repressor of seedling photomorphogenic development, positively regulates ABA signal transduction during Arabidopsis seedling growth in darkness by mediating ABA-induced ABI5 accumulation. By Jing Peng and Jigang Li Background: The phytohormone abscisic acid (ABA) rapidly accumulates in response to environmental stresses such as drought, and plays important roles […]
Dahhan et al. explore the clathrin-coated vesicle proteome in Arabidopsis By Dana A. Dahhan and Sebastian Y. Bednarek, Dept. of Biochemistry, UW-Madison Background: Trafficking of vacuolar and plasma membrane proteins and other macromolecules is essential for plant development, nutrient uptake, stress responses, and pathogen defense. At the trans-Golgi network/early endosomes and plasma membrane, the oligomerization […]
Zakaria and Stegemann et al. identify and characterize an enzyme involved in pyrrolizidine alkaloid biosynthesis in a member of the borage family. Mahmoud M. Zakariaa,b, Thomas Stegemanna,b, Dietrich Obera a Botanical Institute and Botanic Gardens, Kiel University, Kiel, Germany b Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, 44519 Zagazig, Egypt Background: Alkaloids are a […]