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The nuclear lamina in Arabidopsis, a protein meshwork beneath the nuclear envelope, disassembles under various abiotic stresses, modulating changes in three-dimensional genome organization and gene transcription in stress response.
Cell cycle inhibitor SIAMESE-RELATED1 is identified as a key factor determining the ratio of pavement cells over stomata in response to drought, by terminating the bipotency of stomatal lineage ground cells.
A new method to quantify three masting components from individual tree-years has revealed that globally, masting is uncommon in tree species that depend on mutualist dispersers, with its distribution further mediated by climate and nutrient availability.
ABACUS2 Förster resonance energy transfer biosensors allow an unparalleled view of abscisic acid accumulations and depletions in living plants. Well-watered roots accumulate abscisic acid in growing cells upon shoot dehydration and this is essential to maintain root growth under low humidity.
NAL1 is a breeding-valuable pleiotropic gene in rice. This study identifies NAL1 as a bona fide serine protease which degrades OsTPR2, thus modulating the expression of downstream genes related to hormone signalling pathways, eventually achieving its pleiotropic physiological functions.
The number of glucan chains in the cellulose microfibril of wood has long been debated. X-ray and NMR techniques show that the number is 24. Each microfibril has a dense crystalline core surrounded by a semidisordered shell and remains segregated in new wood.
Climate change will reduce seagrass ranges leading to increased endemism. Such changes will cause differentiation in some regions and homogenization in other areas. The current marine protected areas will be insufficient to protect seagrasses.
Zhao et al. have developed a method to detect and quantify single molecules of RNA in several intact plant tissues. The method can also be used to simultaneously quantify and locate mRNAs and proteins in single cells with subcellular resolution.
The nitrogen-fixing root nodule symbiosis evolved more than 90 million years ago. This innovation emerged by rewiring existing genetic programmes. More recently, this symbiosis convergently gained evolutionary stability in two legume lineages.
This study shows correlated growth responses of conspecific and heterospecific plants in soils previously occupied by other plants, suggesting key contributions of generalist soil biota to plant–soil feedback interactions between succeeding plants.
To advance crop productivity improvement efforts, the authors integrated crystal structure-guided changes from a highly effective red algae Rubisco into a related bacterial enzyme to improve its CO2-fixing traits that, in tobacco, enhanced photosynthesis and growth.
Sugar signalling plays vital roles in cellular function. This study discovered that MdERDL6-mediated glucose elevation in cytosol activates the SnRK2.3-AREB1-TST1/2 cascade to promote sugar accumulation in the vacuoles of apple and tomato fruits.
The three-dimensional model of phytochrome A supports an unanticipated convolution that underpins a new signalling mechanism used by these plant photoreceptors and reveals how structural diversification among isoforms extends light and temperature perception.
Suppressing wheat ASPARTIC PROTEASE 1 promotes the homeostasis of PsbO, stabilizes the photosystem complex and elongates the duration of active photosynthesis, leading to increases in the CO2 assimilation rate, kernel weight and yield.
Plant specialized metabolite biosynthesis is strictly regulated in time and space. The authors describe a robust and redundant transcriptional network that steers cell-specific and jasmonate-inducible triterpene biosynthesis in Arabidopsis root tips.
The crystal structure of the Arabidopsis sucrose–proton symporter SUC1 is presented at 2.7 Å resolution. This allows the identification of a proton-driven symport process for SUC1 that may help in understanding how low-affinity transport can occur in enriched substrate environments.
Old trees have many ecological and socio-cultural values that affect their survival. Species with greater potential height, smaller leaf size and diverse human utilization attributes had the highest probability of long-term persistence.
Grass ligules comprise the boundary between the leaf base and the photosynthetic blade; their homology has been debated for over 200 years. Cell-specific gene expression analyses suggest that ligules are homologous to the margins of the leaf base.
Wheat functional genomics is limited by low transformation efficiency. This study uncovered the transcriptional regulatory network responsible for wheat regeneration and identified two DOF transcription factors that can enhance regeneration in wheat.
Plant-specific kinesin ARK is identified as a major microtubule plus-end-directed transporter in Physcomitrella (moss). ARK motility-dependent tip localization of actin regulators is required for proper cell polarization and growth.