Greg Scallan @greg

6 posts5 participants0 posts today

**J of Systematics and Evolution** @JSE@mstdn.science · 16h

J of Systematics and Evolution @JSE@mstdn.science

Who doesn't love a good sequel?!
Soreng et al. continue their work on #grass #phylogeny with, "A worldwide #phylogenetic classification of the #Poaceae (Gramineae) III: An update."
Get in here!
https://doi.org/10.1111/jse.12847
@WileyEcolEvol
#PlantSci #systematics #photosynthesis #botany #evolution

A worldwide phylogenetic classification of the Poaceae. The indigenous range of each species is presented in different colors.

**JIPB** @JIPB@mstdn.science · 16h

16h

JIPB @JIPB@mstdn.science

Our #JIPB Brief Communications features sure do pack a lot of great science into a small space!
Tao et al. report on #development of elite #rice with broad-spectrum resistance...how? Well, you'll just have to read on to find out!
https://doi.org/10.1111/jipb.13901
@wileyplantsci
#PlantSci #botany

This annotated flow chart illustrates that knocking out three susceptibility genes (Pi21, Bsr-d1, and Xa5) in a rice breeding line that contains the resistance Piz-t produced enhanced broad-spectrum resistance against the fungal pathogen Magnaporthe oryzae and the bacterial pathogen Xanthomonas oryzae pv. oryzae without obvious growth penalty.

**JIPB** @JIPB@mstdn.science · 1d

JIPB @JIPB@mstdn.science

#Science takes a lot of work...and sometimes a little luck! In this new #JIPB review, Gresshoff et al. explore the role of both as they dissect the functional genomics of the nodulation autoregulation pathway (AON) #in soybean.
https://doi.org/10.1111/jipb.13898
@wileyplantsci
#PlantSci #botany

Morphological images comparing maturing pods, node 1, and the upper root system of Forrest (WT), S562L (GMCLV1a), and W667 (GmNARK) soybean plants.

**JIPB** @JIPB@mstdn.science · 2d

JIPB @JIPB@mstdn.science

Phytophthora infestans...a name that strikes fear into the hearts of #potato (and #tomato) lovers everywhere.
But this new study may hold theto broad-spectrum late #blight #disease resistance in these important #crop #plants.
https://doi.org/10.1111/jipb.13892
@wileyplantsci
#PlantSci #botany

Diagram illustrating how stacking multiple nucleotide-binding domain leucine-rich repeat-containing receptor (NLR) genes in potato increases the number and fold change of upregulated genes, conferring broad resistance to late blight. Among the upregulated genes, the calcium-dependent protein kinase gene StCDPK16 is essential for resistance mediated by stacked NLR genes.

**JIPB** @JIPB@mstdn.science · 2d

JIPB @JIPB@mstdn.science

#Rice bacterial blight poses a significant threat to rice #crops, but in a new study published in #JIPB, Sheng et al. reveal the role of arginine methyltransferase (OsPRMT5) in enhancing #resistance to blight infection.
https://doi.org/10.1111/jipb.13885
@wileyplantsci
#PlantSci #Agriculture #botany

Diagram representing a cell under normal growth conditions and one under pathogen infection, each with annotated flow charts to illustrate how arginine methyltransferase (OsPRMT5) enhances rice resistance to bacterial blight by modulating salicylic acid and lignin contents through arginine methylation of the salicylic acid biosynthesis enzyme PHENYLALANINE AMMONIA LYASE 1 (OsPAL1). Also shown is the impact of an effector, secreted by Xanthomonas oryzae pv. oryzae, which disrupts the OsPRMT5–OsPAL1 interaction, impairing OsPRMT5-mediated immune responses.

**Andrew Millar** @A_J_Millar@fediscience.org · 2d

Andrew Millar @A_J_Millar@fediscience.org

Beech with bracing.

A twin-trunked beech tree grows over a river. About 3m up, a branch from one trunk has fused directly into the other trunk and the far end of this branch is long gone, creating a clean cross-brace between the trunks.

#ThickTrunkTuesday #trees #PlantSci

**JIPB** @JIPB@mstdn.science · 6d

JIPB @JIPB@mstdn.science

Heterotic groups are crucial for breeders to improve #hybrid vigor.
In a new #OpenAccess paper from #JIPB, Xue et al. reveal key insights into the #genomic divergence of #maize heterotic groups in China, informing future #crop breeding efforts
https://doi.org/10.1111/jipb.13884
@wileyplantsci
#PlantSci #botany

Diagrams representing the seven core heterotic groups differentiated in maize germplasm from China, showing regionality and uniqueness at the genomic level.

**JIPB** @JIPB@mstdn.science · Apr 17

Apr 17

JIPB @JIPB@mstdn.science

Fewer stomata = improved WUE!
Zhou et al. report that DSD1/ZmICEb regulates #stomatal #development and drought tolerance in #maize, providing a promising target for the #genetic improvement of this valuable #crop #plant!
https://doi.org/10.1111/jipb.13890
@wileyplantsci
#PlantSci #JIPB #botany #OpenAccess

Photograph of WT (drought sensitive) and dsd1 mutant (drought tolerant) maize plants, and diagrams of their corresponding epidermal surfaces, showing more stomata and fewer stomata, respectively.

**JIPB** @JIPB@mstdn.science · Apr 14

Apr 14

JIPB @JIPB@mstdn.science

#RNA interference is an important tool to protect #plants from #pathogens and pests, but delivery can be problematic. In this #JIPB review, Xing et al. explore the potential of engineered #nanotransporters for RNAi delivery.
https://doi.org/10.1111/jipb.13887
@wileyplantsci
#PlantSci #RNAi #Nanotech #botany

Diagram summarizing the application of nanomaterial-mediated delivery of RNAs for RNA interference against plant pathogens and pests, illustrating how different nanomaterials break through the cell barriers of plants, pathogens, and pests according to their size, morphology, and charge characteristics.

**JIPB** @JIPB@mstdn.science · Apr 11

Apr 11

JIPB @JIPB@mstdn.science

A new #JIPB commentary explores the groundbreaking discovery that changed how we think about the #molecular mechanisms of #stomatal regulation--opening new avenues for enhancing plant stress resilience!
And it's FREE!

https://doi.org/10.1111/jipb.13886
@wileyplantsci
#PlantSci #JIPB #botany

Diagram of a closed stomatal guard with an inset enlargement to illustrate the mechanism by which cell hydrogen sulfide (H2S) modulates guard cell function by inhibiting inward-rectifying potassium channels through protein persulfidation.

**JIPB** @JIPB@mstdn.science · Apr 9

Apr 9

JIPB @JIPB@mstdn.science

Understanding #plant-#pathogen interactions will help us protect crucial #food #crops

Shu et al. characterize a #MAPK signaling cascade that contributes to #wheat stripe rust resistance, providing new insights into crop immunity and the #pathogenicity of an obligate biotrophic #fungus.

https://doi.org/10.1111/jipb.13888
@wileyplantsci
#PlantSci #JIPB #botany

Diagram of a wheat plant cell cross-section. On the left side of the cell, the TaMAKK2-TaMAPK6 kinase cascade phosphorylates the core immune regulator TaSGT1 and promotes its nuclear entry, contributing to resistance to stripe rust; on the right, an effector from the fungal pathogen that causes stripe rust targets and blocks this process.

**J of Systematics and Evolution** @JSE@mstdn.science · Apr 7

Apr 7

J of Systematics and Evolution @JSE@mstdn.science

The #phylogeny and #biogeographic history of the Ulmaceae have long been poorly understood.
In this study, Zhang et al. reconstruct #phylogenetic relationships within the family and infer spatio-temporal #diversification patterns. https://jse.ac.cn/EN/10.1111/jse.12720
@WileyEcolEvol
#PlantSci #botany

Reconstruction of phylogenetic relationships and inferred spatio-temporal diversification patterns based on chloroplast genome (complete cpDNA) and nuclear ribosomal DNA sequences (nrDNA) within the Ulmaceae family.

**JIPB** @JIPB@mstdn.science · Apr 7

Apr 7

JIPB @JIPB@mstdn.science

This fascinating new study by Xun et al. documents a critical role of DRM-mediated #DNA methylation in regulating...
#gene expression
TE silencing, and
normal #development
...in soybean.
Find out how!
https://doi.org/10.1111/jipb.13883
@wileyplantsci
#PlantSci #CropSci #soybean #botany

Whole-plant morphologies and TEM micrographs to illustrate crucial developmental defects in Gmdrm vs WT soybean plants.

**JIPB** @JIPB@mstdn.science · Apr 5

Apr 5

JIPB @JIPB@mstdn.science

What are the experts saying?

Find out in our new special issue, packed with the latest expert reviews on #plant #science research!
https://onlinelibrary.wiley.com/toc/17447909/current

@wileyplantsci
#PlantSci #morphology #MolecularBiology #SynBio #CropSci #FoodSci #CRISPR #PlantDevelopment #JIPB #botany

Decorative image of the cover of JIPB Issue 3 for March 2025, showing a watercolor and ink style image of a tree with various plant research organisms in its leaves and branches, including corn, tomatoes, etc.

**JIPB** @JIPB@mstdn.science · Apr 4

Apr 4

JIPB @JIPB@mstdn.science

The complexity of #SynComs can limit their application. Li et al. propose a strategy for constructing a simplified and functional SynCom (sfSynCom) in this breakthrough new study published in #JIPB!
https://doi.org/10.1111/jipb.13881
@wileyplantsci
#PlantSci #symbiosis #soybean #bacteria #botany

Diagram showing how a helper strain induces biofilm formation in the core symbiotic strain, Bradyrhizobium, via production of acyl homoserine lactones. This biofilm formation facilitates colonization of the soybean plant roots by Bradyrhizobium and promotes nodulation.

**JIPB** @JIPB@mstdn.science · Apr 1

Apr 1

JIPB @JIPB@mstdn.science

Ever wonder how ER #homeostasis impacts #immune response activation in #plants? Look no further!
Bi et al. report that the ER-localized DMP2 positively regulates resistance to #Phytophthora in #potato.
https://doi.org/10.1111/jipb.13876
@wileyplantsci
#PlantSci #JIPB #phytopathology #botany

Diagram of the cross-section of a portion of a potato cell, illustrating how the endoplasmic reticulum-localized membrane protein StDMP2 positively regulates resistance to Phytophthora by modulating the endoplasmic reticulum quality control-mediated accumulation of specific pattern recognition receptors and NON-RACE SPECIFIC DISEASE RESISTANCE 1.

**JIPB** @JIPB@mstdn.science · Mar 31

Mar 31

JIPB @JIPB@mstdn.science

Multi-target #gene editing in the TILLER ANGLE CONTROL 1 regulatory region fine-tunes gene expression in #rice, creating a gradient of tiller angles, and improving architecture for high-density planting in diverse zones.
https://doi.org/10.1111/jipb.13877
@wileyplantsci
#PlantSci #JIPB #CropScience #botany

Panel of figures: (1) Sequence diagrams indicating regulatory elements; (2) Plant morphology of select terminal allelic mutants as captured 80 days after seed sowing. Bars = 20 cm

**J of Systematics and Evolution** @JSE@mstdn.science · Mar 30

Mar 30

J of Systematics and Evolution @JSE@mstdn.science

Join us all this week as we meet more of the 2024 JSE Outstanding Papers Award winners!
Here, Dong et al. use phylogenomics to improve #phylogenetic relationships and species ID of intricate groups.
https://doi.org/10.1111/jse.12802
@WileyEcolEvol
#systematics #PlantSci #olive #FoodSci #botany

Phylogenetic trees comparing specific DNA barcodes and plastome superbarcodes of taxa within the genus Olea (olive).

**JIPB** @JIPB@mstdn.science · Mar 30

Mar 30

JIPB @JIPB@mstdn.science

Transcription factor bHLH25 plays a dual role in #plant defense.
Oxidized, it boosts #lignin production to strengthen #cell walls against #pathogens.
Non-oxidized, it activates #phytoalexins to inhibit pathogen growth.
Together, these functions may help us create disease-resistant #crops without yield loss.

https://doi.org/10.1111/jipb.13878
@wileyplantsci
#PlantSci #JIPB #botany

Diagram illustrating the dual roles of TF bHLH25. Oxidized, it boosts lignin production to strengthen cell walls against pathogens. Non-oxidized, it activates phytoalexins to inhibit pathogen growth.

**JIPB** @JIPB@mstdn.science · Mar 28

Mar 28

JIPB @JIPB@mstdn.science

#Chloroplasts import 3,000+ nucleus-encoded proteins via TOC/TIC complexes and a motor system. This new #JIPB review highlights structural advancements, insights into #protein quality control and retrograde signaling, and more!
https://doi.org/10.1111/jipb.13875
@wileyplantsci
#PlantSci #botany

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