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The Week in Botany 190

March 8, 2021

This weekend I've been planting seedballs around the lawn. The hope is that that yellow rattle will keep the grass down, and the other flowers will attract pollinators and food for other animals. I'll have to remember to take a photo of the 'before' state to see if it works. It is possible that I left it a bit too late.
I was also too late to the European Bumblebee Conference, for various reasons. Luckily the organisers have put talks online. While they're bee-focused, plants are a key element in many of the talks.
I'll be back with a selection of stories shared by people following @botanyone on Twitter next week. Until then, stay safe.
Alun (webmaster@botany.one)

From Botany One

 

Impacts of land use on the stress responses of an invasive grass
Can ecotypic origin (i.e. agricultural vs. non-agricultural) and environmental selection pressures predict biomass accumulation in Johnsongrass?

A sweet story: modern sugarcanes originate from three ancestral genomes
New study identifies hybridisation and backcrossing events to have led to the modern sugarcane cultivars.

What traits govern root sprouting in temperate herbs?
The ability is most common in dry, open habitats, and most vigorous where disturbance is frequent.

Seed dormancy of the threatened Spanish daffodil Narcissus yepesii
Can the seed dormancy class of Narcissus yepesii explain the different dormancy levels seen in two closely related phylogenetic congeners?
 

Modelling the potential of soybean cropping in Northern European regions
Soybean is not commonly grown in Northern Europe, but can it be, and how?

The shape of “baby plants” in the amaranth family show adaptations to extreme habitats
Adaptation to extreme habitats starts in the seed.



News and Views

Diversity in nature and academia
"We talk to Dr Swanne Gordon, a Jamaican-Canadian Assistant Professor of Biology at Washington University in St. Louis, United States, about her research on natural diversity and experience as a Black person in academia."
Nature Ecology & Evolution

Workshop
Spatial Proteomics in Plants: How to map the location and connection of proteins. April 8, 2021.
Virtual Workshop
Plant Cell Atlas Spatial Proteomics ​Workshop

Join the lab
"We are recruiting a post-doctoral researcher to work on an interdisciplinary, federally funded project on pollinator gardens. Please read more about the position and instructions for applying."
MALLINGER LAB AT UF

Jobs and vacancies at SLU
"We are looking for a postdoc to work a new research project aiming to understand the interacting effects of changes in climate and land use on the diversity and distributions of multiple taxa. Analysing historical and recent observation data of birds, butterflies and plants together with matching climate and land-use data, we aim to understand how biodiversity change relates to the interactions of global change drivers over longer (>50 years) and shorter (10-20 years) time periods."
Swedish University of Agricultural Sciences

'Catastrophic': UK has lost 90% of seagrass meadows, study finds
Scientists say restoring the lush habitats would boost wildlife, protect coasts and store carbon.
The Guardian

A sea in the Amazon
Did the Caribbean sweep into the western Amazon millions of years ago, shaping the region’s rich biodiversity?
PNAS



Scientific Papers

The allelic rice immune receptor Pikh confers extended resistance to strains of the blast fungus through a single polymorphism in the effector binding interface
De la Concepcion reveal the mechanistic basis of extended recognition specificity conferred by a Pik allele, Pikh. A single residue in Pikh-HMA increases binding to AVR-Pik variants, leading to an extended effector response in planta.
PLOS Pathogens

The unequal impact of parenthood in academia
Morgan et al. quantify the impact of parenthood on scholarship using an extensive survey of the timing of parenthood events, longitudinal publication data, and perceptions of research expectations among 3064 tenure-track faculty at 450 Ph.D.-granting computer science, history, and business departments across the United States and Canada, along with data on institution-specific parental leave policies. Parenthood explains most of the gender productivity gap by lowering the average short-term productivity of mothers, even as parents tend to be slightly more productive on average than nonparents.
Science Advances

Host-interactor screens of Phytophthora infestans RXLR proteins reveal vesicle trafficking as a major effector-targeted process
This study aimed to identify the host processes targeted by the RXLR class of host-translocated effectors of the potato blight pathogen Phytophthora infestans. To this end, Petre et al. performed an in planta protein-protein interaction screen by transiently expressing P. infestans RXLR effectors in Nicotiana benthamiana leaves followed by co-immunoprecipitation and liquid chromatography tandem mass spectrometry.
The Plant Cell

Photosynthetic plasticity of a tropical tree species, Tabebuia rosea, in response to elevated temperature and [CO2]
Atmospheric and climate change will expose tropical forests to conditions they have not experienced in millions of years. To better understand the consequences of this change Slot et al. studied photosynthetic acclimation of the neotropical tree species Tabebuia rosea to combined 4°C warming and twice-ambient (800 ppm) CO2. They measured temperature responses of the maximum rates of ribulose 1,5-bisphosphate carboxylation (VCMax), photosynthetic electron transport (JMax), net photosynthesis (PNet), and stomatal conductance (gs), and fitted the data using a probabilistic Bayesian approach.
Authorea

[REDUX] A reporter for noninvasively monitoring gene expression and plant transformation
He et al. construct a new reporter RUBY that converts tyrosine to vividly red betalain, which is clearly visible to naked eyes without the need of using special equipment or chemical treatments. We show that RUBY can be used to noninvasively monitor gene expression in plants.
Horticulture Research

The effects of climate change on floral anthocyanin polymorphisms
Sullivan and Koski used descriptions of flower colour from over 1900 herbarium records representing 12 North American species spanning 124 years to test whether anthocyanin-based flower colour has responded to global change.
Proceedings of the Royal Society B: Biological Sciences

Conserved pleiotropy of an ancient plant homeobox gene uncovered by cis-regulatory dissection
Hendleman et al. explore the functional divergence of WUSCHEL HOMEOBOX9 ( WOX9), suggested to have species-specific roles in embryo and inflorescence development. Using a cis-regulatory editing drive system, they generate a comprehensive allelic series in tomato, which revealed hidden pleiotropic roles for WOX9.
Cell

Predicting transcriptional responses to cold stress across plant species
Meng et al. show that models trained using data on which genes respond to cold in one species can predict which genes will respond to cold in related species, even when the training and target species vary in their degree of tolerance to cold.
PNAS

Emergence and diversification of a highly invasive chestnut pathogen lineage across southeastern Europe
The chestnut blight fungus Cryphonectria parasitica first decimated the North American chestnut, and a more recent outbreak threatens European chestnut stands. To unravel the chestnut blight invasion of southeastern Europe, Stauber et al. sequenced 230 genomes of predominantly European strains.
eLife


     

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