Category: Members

Published in Field Crop Research, in the September 2020 issue: In a 4-year field experiment in southern Tanzania, different fertilisers were tested to investigate whether they (1) suppress the obligate parasitic weed Striga asiatica and the facultative parasitic weed Rhamphicarpa fistulosa, and (2) favour rainfed rice yields under parasitic weed infestation. We observed that: (1) fertilisers […]

The first committed step of a successful infestation is the germination of parasite seeds primarily in response to a group of related small molecule hormones called strigolactones (SLs), which are emitted by host roots. Despite the important role of strigolactones, it is not clear how host-derived strigolactones germinate parasitic plants. In contrast, gibberellin acts as […]

At the recently concluded Botanical Society of America meeting  Roshaniza Rosili (PhD student at University of Brunei- Co supervised by Kushan Tennakoon and Faizah Metali) reported that  the photosynthesis of alien invasive Acacia mangium seedlings can be significantly reduced due to parasitism by native Cassytha filiformis. This  suggest that the spread of these alien invasive […]

When Cook et al. discovered strigol in 1966 they probably did not imagine the prospects of their newfound molecule. Strigol turned out to be a member of a whole class of molecules, the strigolactones (SLs). SLs are plant hormones that regulate shoot branching and root architecture. Ex planta, in the soil surrounding the roots of […]

Upland rice farmers in Africa may reduce soil erosion and drudgery of soil tillage following Conservation Agriculture, combining no-till with legume cover crops. It mitigates Striga asiatica infestation and damage, but complementary technologies are required to raise crop yields. Read the Open Access publications: Mixed outcomes from conservation practices on soils and Striga-affected yields of […]

The Jianqiang Wu group (Kunming Institute of Botany, Chinese Academy of Sciences; www.wu-lab.org) reported that large numbers of proteins can be transported between the dodder Cuscuta australis and its host plant. Their proteomic analyses showed that hundreds to more than 1500 proteins moved between dodder and host plants, and hundreds of foreign proteins can even […]

Recently, Jianqiang Wu Group at the Kunming Institute of Botany, Chinese Academy of Sciences, in Kunming, China revealed that dodder can transmit salt-induced systemic signaling between different host plants. They found that when one host was treated with salt solution, mobile systemic signals were produced and transmitted through dodder bridges, reaching another host, and this […]

A new project entitled “Striga Smart Sorghum Solutions for Smallholders in East Africa” funded through a GCRF – Royal Society Society, International Collaboration award, started in December 2019. This is a collaboration between Dr Jonne Rodenburg of NRI, University of Greenwich (UK) and Dr Steven Runo of Kenyatta University (Kenya). The project aims to combine […]

Link to paper By: Nathan R Johnson, Claude W dePamphilis, Michael J Axtell Trans-species small regulatory RNAs (sRNAs) are delivered to host plants from diverse pathogens and parasites and can target host mRNAs. How trans-species sRNAs can be effective on diverse hosts has been unclear. Multiple species of the parasitic plant Cuscuta produce trans-species sRNAs that collectively target many […]

Link to paper by: Mounia Ennami, Joseph Mbasani-mansi, Fatima Zahra Briache, Nada Oussible, Fatima Gaboun, Lamiae Ghaouti, Loubna Belqadi, Michel Edmond Ghanem, Kamal Aberkani, James Westwood, Rachid Mentag   Orobanche infections reduce biomass of hosts at the first stages of infection on both contrasting faba bean cultivars. It is likely that plant growth-defense tradeoffs have a […]