Plant Reproductive Biology

NtLLG4-mediated unconventional polar exocytosis of NtPPME1 coordinates cell wall rigidity and membrane dynamics to control pollen tube integrity

The paper identifies NtLLG4 as a receptor for NtPPME1, mediating polar exocytosis to regulate cell wall rigidity and membrane dynamics in pollen tubes.

High Cross Pollination Frequency in Rice (Oryza sativa) Landraces in Field Condition

This study demonstrates that high cross pollination frequency in rice landraces occurs under conditions of prolonged flower exposure duration overlap between parental cultivars, contradicting traditional beliefs.

An evolutionary leap in plant reproduction: From archegonia and motile sperm to embryo sacs and pollen tubes

The paper investigates the evolutionary transition in plant reproduction from archegonia to embryo sacs and pollen tubes using transcriptomic data from Ginkgo and related species.

Production of unreduced microspores in Arabidopsis flowers cultivated in culture medium suggests a role of sucrose in facilitating meiotic cytokinesis

Arabidopsis flowers in culture medium produce unreduced microspores due to disrupted meiotic cytokinesis, which is partially rescued by increased sucrose.

Genomic studies in Linum shed light on the evolution of the distyly supergene and the molecular basis of convergent floral evolution

This study examines the evolution of the S-locus supergene and molecular mechanisms of distyly in Linum species, finding conserved genetic architecture and brassinosteroid pathway involvement in style length polymorphism.

High throughput isolation of male gametophyte cells of Solanum lycopersicum var. Micro-Tom by fluorescence-activated cell sorting.

This paper develops a method to isolate male gametophyte cells from tomato using fluorescence-activated cell sorting with a double fluorescent marker line.

The genetic architecture of quantitative variation in the self-incompatibility response within Phlox drummondii (Polemoniaceae)

This study investigates the genetic architecture of self-compatibility variants in Phlox drummondii, finding polygenic QTLs and a novel S-locus associated with self-incompatibility variation.

Loss of Nucleotide Sugar Transporter (AtNST) gene function in the Golgi membranes impairs pollen development and embryo sac progression in Arabidopsis thaliana

This study shows that loss of AtNST gene function in Arabidopsis impairs pollen development and embryo sac progression, with phenotypes reversed by gene over-expression.

Papaver S-determinants trigger an integrated network of mitochondrially derived ROS and disruption of energy metabolism in incompatible pollen tubes

This study shows that in Papaver SI, mitochondrial ROS and energy metabolism disruption are central to pollen tube rejection through interconnected signaling networks.

In vitro live cell imaging reveals nuclear dynamics and role of the cytoskeleton during asymmetric division of pollen mitosis I in Nicotiana benthamiana

The paper uses live cell imaging to study cytoskeletal dynamics during pollen mitosis I in Nicotiana benthamiana, showing actin's role in nuclear positioning and microtubules' role in chromosome segregation.

Brassinosteroids function as the plant male and female reproductive hormone coordinating gene expression.

This study shows that brassinosteroids (BRs) function as reproductive hormones in Arabidopsis, regulating gene expression in both male and female reproductive tissues during fertilization.

A lectin receptor-like kinase controls self-pollen recognition in Phlox (Polemoniaceae)

This study identifies a gene, PdPIRK, responsible for self-pollen recognition in Phlox, showing its necessity for self-incompatibility and its role in the S-locus.

Differential gene expression analysis identifies a group of defensin like peptides from Solanum chacoense ovules with in vitro pollen tube attraction activity

The paper identifies defensin-like peptides in Solanum chacoense ovules that show in vitro pollen tube attraction activity through transcriptome analysis and functional assays.

Semi-automated High Content Analysis of Pollen Performance Using TubeTracker

The paper introduces TubeTracker, a semi-automated tool for analyzing pollen performance parameters, and validates its accuracy in tomato cultivars.

ROS regulation of stigma papillae growth and maturation in Arabidopsis thaliana

This study investigates the role of reactive oxygen species (ROS) in the growth and maturation of stigma papillae in Arabidopsis thaliana, showing that superoxide and hydrogen peroxide have distinct roles in papillae development and pollination.

Stigma longevity is not a major limiting factor in hybrid wheat seed production

The paper tests whether stigma longevity limits hybrid wheat seed production by examining seed set in male sterile cultivars with varying stigma deterioration onset, finding that stigma receptivity remains stable during the pollination window.

Too much sugar makes plants "pregnant": maternal sucrose signals fertilization in Arabidopsis seeds

The paper shows that sucrose triggers a fertilization-independent response in Arabidopsis maternal tissues, initiating seed development through hormonal and sugar signaling.

Programmed cell death and stomatal density regulate anther opening in response to ambient humidity

This study shows that ambient humidity and programmed cell death regulate anther opening in Arabidopsis by modulating transpiration and tissue-specific cell death.

Gene expression and pollen performance indicate altered postmating selection between Solanum species with different mating systems

This study compares gene expression and pollen performance between two Solanum species with different mating systems, finding differences in pollen tube growth rates and gene expression domains.

Male and female gametophytes meet after winter: Testing the overwintering hypothesis for delayed fertilization in Japanese stone oak

The paper tests the overwintering hypothesis for delayed fertilization in Japanese stone oak by observing pollen tube growth and ovule development across seasons.

A brassinosteroid receptor kinase is required for sex determination in the homosporous fern Ceratopteris richardii

This study identifies the HER7 gene, a brassinosteroid receptor kinase, as essential for antheridiogen-mediated sex determination in the fern Ceratopteris richardii using BSR-Seq.

Anisotropic diffuse growth in Arabidopsis stigma papillae

This study shows that Arabidopsis stigma papillae grow through anisotropic diffuse growth, supported by mutant analysis affecting microtubule and cellulose microfibril organization.

Adaptation and acclimation of gametophytic traits to heat stress in a widely distributed wild plant along a steep climatic gradient

This study examines how gametophytic traits of wild Silene vulgaris adapt or acclimate to heat stress across a temperature gradient, finding limited adaptation but some acclimation in pollen size.

Sporophyte Directed Gametogenesis via the Ubiquitin Proteasome System

The paper shows that male gametophyte development in Arabidopsis is controlled by the sporophyte through SHUKR, a gene that represses ubiquitination genes involved in post-meiotic gametogenesis.

Pioneering New Breeding Pathways with 3PaTec: Unlocking the Power of Polyspermy-Induced Triparentage for Sustainable Crop Development

This paper introduces 3PaTec, a novel breeding technology that enables triparental plant generation through polyspermy, enhancing crop development without genetic engineering.

Allelic turnover and dominance reversal at a single-gene balanced polymorphism controlling heterodichogamous flowering in wingnuts (Juglandaceae)

This paper identifies distinct inheritance mechanisms controlling heterodichogamy in two Juglandaceae genera, showing allelic dominance reversal and cis-regulatory divergence at the GFAFL gene.

The evolutionary dynamics of plant mating systems: how bias for studying 'interesting' plant reproductive systems could backfire

The paper updates a dataset of plant mating systems across 6,781 species and identifies sampling biases that may overestimate self-fertilization frequency.

S-RNase Evolution in Self-Incompatibility: Phylogenomic Insights into Synteny with S-Like Genes

This study investigates the evolutionary origin and genomic trajectory of S-RNase genes in eudicots using phylogenetic and synteny analyses across 130 angiosperm genomes.

Structural insights into the recognition of RALF peptides by FERONIA receptor kinase during Brassicaceae Pollination

This study reveals the structural basis of RALF peptide binding to FERONIA receptor kinase, explaining how compatible and incompatible peptides regulate pollen tube penetration during Brassicaceae pollination.

Vesicle-Mediated Regulation of Pollen tube Growth in Torenia fournieri

This study investigates vesicle-mediated pollen tube growth in Torenia fournieri using BFA and AS-ODNs, showing their effects on cell wall morphology and gene expression.