Plant Reproductive Biology

The paper characterizes CMS pollen phenotypes and identifies PMEI gene upregulation as a mechanism for abnormal pollen germination in cytoplasmic male sterile tomato.

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

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.

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.

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

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.

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

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.

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.

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

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.

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

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.

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

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

This study identifies PbrSYP71 as a pollen tube-specific syntaxin that maintains uneven ER distribution by tethering ER to F-actin, promoting pollen tube growth in pear.

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.

This study investigates how geometry and cell wall mechanics guide early pollen tube growth in Arabidopsis thaliana, showing that WT papilla cells direct growth while ktn1-5 mutants allow free movement along geodesics.

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.

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

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

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.

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

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.

This study identifies GEF8 and GEF9 as essential for initiating pollen germination in Arabidopsis by polarly activating ROPs and altering Ca2+ signaling.

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

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.

This study identifies RALF12-triggered ROS production and ethylene signaling as mechanisms causing synergid cell death during fertilization in maize.

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.

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