The availability of nutrients in the environment can have dramatic effects on plant parasitism, for instance, Striga infestations are reduced in nutrient rich soils. The molecular basis for this phenomenon is not well known so we decided to investigate this further with the Orobanchaceae family member Phtheirospermum japonicum. It’s a facultative parasite which infects Arabidopsis […]
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Strigolactones are chemoattractants for host tropism in Orobanchaceae parasitic plants
Orobanchaceae parasitic plants such as Striga spp. infest major crops and are threats to global food security. One of the important steps for them to complete infection is the active extension of their root to the host roots, called host tropism. However, the molecular mechanism underlying this step remained elusive. To study host tropism, we […]
Cuscuta australis Parasitism-Induced Changes in the Proteome and Photosynthetic Parameters of Arabidopsis thaliana
Cuscuta australis is a widely distributed stem parasitic plant, infecting a variety of host plants. Its parasitism has a negative effect on the hosts, mainly due to the exhaustion of nutrients, thus negatively affecting the growth and development. However, recent studies indicated that the effect of parasitism may extend beyond the simple extraction of organic […]
ERC Proof of Concept grant to control witchweed infection in maize
Harro Bouwmeester received a Proof of Concept Grant funded by the European Research Council (ERC) for the project LGSMAIZE. With this grant we will test whether it is possible to genetically modify African maize genotypes so they become resistant to parasitic witchweeds. This can be an enormous asset in the fight against witchweed. The parasitic […]
Implications of climate change for environmental niche overlap between five Cuscuta pest species and their two main Leguminosae host crop species
Some parasitic plants are major pests in agriculture, but how this might be affected by climate change remains largely unknown. In this study, we assessed this question for five generalist holoparasitic Cuscuta species (smoothseed alfalfa dodder [Cuscuta approximata Bab.], alfalfa dodder [Cuscuta europaea L.], soybean dodder [Cuscuta chinensis C. Wright], Peruvian dodder [Cuscuta australis R. […]
Call for papers: Chemical, Biological, and Biotechnological Control of Parasitic Weeds
We welcome the submission of original research and review articles related to parasitic weed (witchweeds, broomrapes, mistletoes, dodders, etc.) control including, but not limited to, the following themes:• Screening and structure-activity relationship of chemicals• Screening of biological resources and their effects on parasites• Characterization of molecules, such as enzymes, as targets for control• Biotechnological approaches […]
Call for papers: Parasitic plants, people and planet
Over one per cent of flowering plants are parasitic and extract food and water from other plants. They have a profound effect on both natural and agricultural systems. They include evolutionary enigmas, for example plants that grow inside other plants, and ecosystem engineers, for example hemiparasites that regulate biodiversity in plant communities. Parasitic plants are […]
Center for Desert Agriculture, KAUST, Saudi Arabia
Our Research Scientist, Dr. Muhammad Jamil represented the CDA at the 16th World Congress on Parasitic Plants He shared the #StrigaSolutions team’s success stories achieved through their Bill & Melinda Gates-funded project and discussed the latest advancements in suicidal germination technology for effective control of the #Striga parasite in cereals. The congress was organized by […]
Comparative genomics of orobanchaceous species with different parasitic lifestyles reveals the origin and stepwise evolution of plant parasitism
Parasitic plants evolved from autotrophs. Initially, certain autotrophs evolved to be facultative hemiparasitic plants which obtained only water and mineral nutrients from their hosts as supplements. Some of the facultative hemiparasitic plants later became obligate parasitic plants that had to depend on their hosts to complete their life cycles. Then gradually holoparasitic plants evolved from obligate parasites and they completely lost their photosynthesis capacity. In angiosperms, parasitic […]
Molecular Processes of Dodder Haustorium Formation on Host Plant under Low Red/Far Red (R/FR) Irradiation
Low R/FR irradiation can promote dodder haustorium formation on the host plant; however, the mechanisms underlying the process are still unknown. In this study, we compared the transcriptomic data during the formation of haustorium of Cuscuta chinensis on host plant Arabidopsis thaliana under low (R/FR = 0.1) versus high (R/FR = 0.2) R/FR irradiation at […]