Striga hermonthica induces lignin deposition at the root tip to facilitate prehaustorium formation and obligate parasitism

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Parasitic plants initiate haustorium formation—a critical step in parasitism and nutrient acquisition—by recognizing haustorium inducing factors (HIFs) from their hosts. However, the mechanisms by which these plants sense and transduce host-derived signals during early development remain poorly understood. Previous research has identified lignin monomers and their precursors, notably G- and S-type monolignols produced during lignin […]

March IPPS Seminars by Begoña Pérez Vich and Amal Boukteb

For our IPPS March Online Seminar, we had again two wonderful talks and a strong turnout from our IPPS community. Dr. Begoña Pérez Vich presented her research on the sunflower-Orobanche cumana interaction. If you’re interested in the mapping of Avirulence genes, please check out her recent publication in BMC Plant Biology (Calderón-González Á et al., […]

A long-distance inhibitory system regulates haustoria numbers in parasitic plants

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The ability of parasitic plants to withdraw nutrients from their hosts depends on the formation of an infective structure known as the haustorium. How parasites regulate their haustoria numbers is poorly understood, and here, we uncovered that existing haustoria in the facultative parasitic plants Phtheirospermum japonicum and Parentucellia viscosa suppressed the formation of new haustoria located on distant roots. […]

Forest type shapes marsupial behavior and mistletoe genetics in Southern temperate rainforests

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A recent study by Gabriela S. Olivares et al., conducted in the southern South American temperate rainforests, revealed how habitat structure influences the behavior of the arboreal marsupial Dromiciops bozinovici and the genetic diversity of two mistletoe species (Tristerix corymbosus and Desmaria mutabilis). Using camera traps and DNA sequencing, we found that D. bozinovici visits T. corymbosus more frequently in evergreen forests and D. […]

Update of the IPPS history page

Thanks to requests from our community after Jim Westwood’s IPPS in January, Jim generously offered to share his incredible collection of past WCPP conference posters, meeting photos, and some fascinating insights into the early days of the IPPS he presented in his seminar. You can now find these pictures in the updated society history section […]

Three generations of IPPS presidents meet in Senegal for Promise II meeting

Three generations of IPPS presidents, Julie Scholes, Harro Bouwmeester, and current president, Jonne Rodenburg, met recently in Senegal for the Promise II project meeting. Promise II, Promoting Root Microbes for Integrated Striga Eradication, is a Gates Foundation funded project aiming to engineer soil and plant microbiomes to enhance crop productivity in Sub-Saharan Africa. Specifically, to […]

Strigolactone transporter gene editing results in parasitic weed resistance in sorghum and tomato

At about the same time two papers describe the use of gene editing of the strigolactone transporter to reduce strigolactone exudation and thereby introduce parasitic weed resistance in sorghum and tomato. These are: Jiayang Shi, Cuo Mei, Fengyong Ge, Qingliang Hu, Xinwei Ban, Ran Xia, Peiyong Xin, Shujing Cheng, Gaohua Zhang, Jiawei Nie, Shiqi Zhang, […]

Manipulation of a strigolactone transporter in tomato confers resistance to the parasitic weed broomrape

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Parasitic weeds of the Orobanchaceae family cause substantial economic losses and pose significant threats to global agriculture. However, management of these parasites is challenging, and very few resistance genes have been cloned and characterized in depth. Here, we performed a genome-wide association study using 152 tomato accessions and identified SlABCG45 as a key gene that […]

March IPPS Seminars by Begoña Pérez Vich and Amal Boukteb

First talk: Dr. Begoña Pérez Vich from Spanish National Scientific Research Council will talk about “Genetics of the sunflower – Orobanche cumana parasitic interaction” Second talk: Amal Boukteb, PhD student, National Institute for Agricultural Research of Tunisia will talk about “Vicia faba–Orobanche foetida: Insights into Key Genetic Players” Date: Wednesday, March 5th at Time: 1 […]

Online survey on parasitic weeds in European agriculture

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*** Online survey on parasitic weeds in Europe ***  Please help us to reach out to farmers and extension/research professional working with farmers in Europe for this online survey on parasitic weeds! You can access the English. French or Dutch versions (IT/ES/PT/ DE versions follow soon) here: tinyurl.com/parasiticweeds   […]