Volume 189, Issue 4, August 2022

The Arabidopsis glutamine synthetase2 mutants grow normally in the air, challenging the paradigm that chloroplastic GLUTAMINE SYNTHETASE2 is the primary enzyme to assimilate photorespiratory $NH4+$⁠.

The SoyNcRNAExp soybean non-coding RNA expression/co-expression resource can be used for ncRNA expression, mining, and co-expression analysis.

A MYB family transcription factor ZmMYB69 is a transcriptional activator at the upper level of ZmMYB31 and ZmMYB42 in the hierarchical network that controls lignin biosynthesis in maize.

Heritable base-editing using a viral delivery system enables high-throughput functional analysis of genes in Arabidopsis.

Wound-induced jasmonate biosynthesis occurs by mechanisms that are independent of gene transcription or translation.

Pools of arginine and ornithine generated during protein degradation can pace the progression of leaf senescence by affecting the TCA cycle, polyamine biosynthesis and the ethylene signaling pathway.

Indole glucosinolate-dependent cyanides deter mite herbivory on Arabidopsis plants; in response, mites utilize β-cyanoalanine synthase activity to counter cyanide toxicity.

Starch degradation in the light is regulated by similar mechanisms to those operating at night, stabilizing carbon availability, and thereby optimizing growth in natural light conditions

The enzyme phosphatidylcholine:diacylglycerol cholinephosphotransferase facilitates accumulation of seed oil with three hydroxylated acyl groups in Ricinus communis.

The biosynthesis of p-hydroxyphenyl subunits of the cell wall polymer lignin is independent of the canonical cinnamyl alcohol dehydrogenases involved in guaiacyl and syringyl monomers.

Emergence of an unusual chemical signature in the chicory pollen coat relies on subfunctionalization of CiSHT1 and CiSHT2.

A mechanism regulates cold tolerance and anthocyanin accumulation in apple through the binding of MdMYB2 to the SUMO E3 ligase MdSIZ1.

The overall speed of sap translocation increases by including a concentration-dependent viscosity in axial and radial directions.

A soft ionization gas chromatography–mass spectrometry technique yields insights into jasmonate-induced metabolic changes in primary metabolism of ¹³C-labeled Arabidopsis rosettes.

GhMYB4 and GhMYB66 are crucial factors for cotton anther response to high temperature, and the GhMYB66/GhMYB4 heterodimer enhances the high temperature-induced male sterility through Casein kinase I.

Failure of meiosis I to meiosis II transition induced by heat shock leads to 2n pollen formation in Populus canescens.

Mutation of NAD KINASE2 leads to NADP+ deficiency and impairs the synthesis of photosystem I in chloroplasts of Arabidopsis.

An integrated quantitative genetic approach associated candidate genes with variation in maize leaf cuticular conductance, with the strongest association confirmed by near-isogenic lines.

In two mangroves, stomatal closure, turgor loss, and incipient embolism occur over a narrow range of water potentials and result in roots and leaves being more vulnerable to embolism than stems.

An Arabidopsis suppression screen identifies a missense allele of a conserved and essential splicing factor that modifies splice-site selection.

SKI-INTERACTING PROTEIN interacts with transcription factor SHOOT MERISTEMLESS to regulate shoot apical meristem formation and maintenance.

ABERRANT PANICLE ORGANIZATION2 is a master regulator of rice panicle development by directly regulating an identical group of genes in progressive steps.

The receptor-like protein kinase BAK1 phosphorylates the H⁺-ATPase AHA2 and enhances its activity, which subsequently promotes root K⁺ uptake under low K⁺ conditions in Arabidopsis.

Induction of a hydroxynitrile lyase-encoding gene in Arabidopsis modulates levels of toxic cyanide and cyanohydrins against Tetranychus urticae attack.

Jasmonate signaling components, the Mediator complex, and their integration with auxin signaling play a role during thermomorphogenesis in Arabidopsis.

The parasitic plant Striga hermonthica forms its invasive organ, the prehaustorium, by inducing differentiation of the radicle by arresting cell division.

A cystathionine-β-synthase protein inhibits m-type thioredoxin activities toward NADP-malate dehydrogenase and 2-Cys peroxiredoxin in an adenylate-dependent manner.

Starch mobilization robustly paces to dawn despite severe disruption of the transcriptional circadian oscillator.

A shoot-to-root long-distance mobile peptide and its homologs positively affected the sucrose levels and growth of roots.

A selenium-binding protein represents a cell regulator involved in modulating Chlamydomonas reinhardtii early responses to oxidative stress.

An effector protease of a nitrogen-fixing bacterium impairs root nodule formation of certain legume host plants and targets a soybean protein kinase known to be involved in plant immunity.

The antagonistic effect of auxin and jasmonic acid during tomato pedicel abscission.

EXTRA LARGE G-PROTEIN2 (XLG2) is part of a cell death pathway required for development of the hyperimmunity phenotype in the chitin elicitor receptor kinase 1-4 mutant.

Functional characterization of Arabidopsis miR778 and its targets reveals a coordinated regulatory mechanism of multi-epigenetic modifications during nematode infection.

SAUR15–BRI1-plasma membrane (PM) H+-ATPase acts as a direct, PM-based mode of brassinosteroid signaling that drives cell expansion to promote plant growth and development.

The B-box protein BBX11 regulates photomorphogenesis and stress tolerance under UV-B.

Arbuscular mycorrhizal symbiosis improves salt tolerance of jujube plants by maintaining K⁺/Na⁺ homeostasis and reprogramming plant fatty acid metabolism.

miR1320, a rice species-specific microRNA, targets the ethylene-responsive transcription factor OsERF096 to regulate cold stress tolerance by repressing JA-mediated cold signaling pathway.

The membrane-bound NAC transcription factor ANAC017 acts upstream of Xyloglucan Endotransglucosylase-Hydrolase31 in regulating Al resistance via modulating the cell wall xyloglucan content.

In Arabidopsis thaliana, insect eggs from the butterfly Pieris brassicae trigger the accumulation of sphingolipids and this is associated with a local necrosis.

Photosynthesis in cyanobacteria can be engineered through the manipulation of both natural and artificial electron sinks.