Table of Contents
IN BRIEF
BREAKTHROUGH REPORT
Chloroplast Acetyltransferase NSI Is Required for State Transitions in Arabidopsis thalianaNSI is an active chloroplast Lys acetyltransferase required for state transitions in Arabidopsis independently of LHCII phosphorylation.
RESEARCH ARTICLES
The Interaction between DELLA and ARF/IAA Mediates Crosstalk between Gibberellin and Auxin Signaling to Control Fruit Initiation in TomatoGibberellin and auxin regulate tomato fruit initiation through direct crosstalk, a process mediated by a gibberellin signaling repressor and auxin signaling components SlARFs/SlIAA9.
Comparison of Oryza sativa and Oryza brachyantha Genomes Reveals Selection-Driven Gene Escape from the Centromeric RegionsHigh-confidence assemblies enabled comparative genomics analyses of the centromeric regions of Oryza genomes and provided insight into centromere evolution.
Plastidial NAD-Dependent Malate Dehydrogenase: A Moonlighting Protein Involved in Early Chloroplast Development through Its Interaction with an FtsH12-FtsHi Protease ComplexPlastid NAD-dependent malate dehydrogenase is essential for chloroplast development, not because of its enzymatic activity, but because it interacts with FtsH proteases at the inner envelope membrane.
Nucleus-Encoded Protein BFA1 Promotes Efficient Assembly of the Chloroplast ATP Synthase Coupling Factor 1Chloroplast protein BFA1 is comprised primarily of two β-barrels and acts as a chaperone orchestrating the early steps of the CF1 assembly pathway via specific interaction with the CF1β, γ, and ε subunits.
Molecular Topology of the Transit Peptide during Chloroplast Protein ImportA site-specific cross-linking approach reveals the molecular topology of the transit peptide and its nucleotide-dependent movement within the chloroplast protein import channel.
MCD1 Associates with FtsZ Filaments via the Membrane-Tethering Protein ARC6 to Guide Chloroplast DivisionArabidopsis MCD1, a component of the chloroplast division site-selection system, recognizes membrane-tethered FtsZ filaments through an interaction with membrane-tethering protein ARC6.
Interorganelle Communication: Peroxisomal MALATE DEHYDROGENASE2 Connects Lipid Catabolism to Photosynthesis through Redox Coupling in ChlamydomonasKnockout of the peroxisomal MALATE DEHYDROGENASE2 drastically alters photosynthesis and the metabolism of fatty acids and starch upon nitrogen deprivation and high light exposure in the green microalga Chlamydomonas reinhardtii.
OST1 Activation by the Brassinosteroid-Regulated Kinase CDG1-LIKE1 in Stomatal ClosureBrassinosteroid acts synergistically with ABA in guard cells, and CDL1 mediates BR-induced stomatal closure through OST1 activation.
Discovery of UDP-Glycosyltransferases and BAHD-Acyltransferases Involved in the Biosynthesis of the Antidiabetic Plant Metabolite Montbretin AGlycosyltransferases and acyltransferases in corms of the ornamental plant montbretia are involved in a complex flavonoid biosynthetic system relevant to human health.
HEAT INDUCIBLE LIPASE1 Remodels Chloroplastic Monogalactosyldiacylglycerol by Liberating α-Linolenic Acid in Arabidopsis Leaves under Heat StressHEAT INDUCIBLE LIPASE1 mitigates heat stress in Arabidopsis leaves and plays an important role in the turnover of monogalactosyldiacylglycerol in chloroplasts under heat stress.
The Protein Phosphatases ATUNIS1 and ATUNIS2 Regulate Cell Wall Integrity in Tip-Growing CellsThe serine/threonine protein phosphatases ATUNIS1 and ATUNIS2 function downstream of CrRLK1Ls to negatively regulate cell wall integrity during tip growth.
A Single-Nucleotide Polymorphism in the Promoter of a Hairpin RNA Contributes to Alternaria alternata Leaf Spot Resistance in Apple (Malus × domestica)A single-nucleotide polymorphism in a hairpin RNA promoter contributes to Alternaria alternata leaf spot resistance in apple and could serve as a marker to distinguish susceptible versus resistant apple cultivars.
