Web14 Dec 2024 · The parasitic plant Striga hermonthica has been causing devastating damage to the crop production in Africa. Because Striga requires host-generated strigolactones to … Web9 Dec 2015 · The parasitic weeds Striga asiatica and S. hermonthica are major biological constraints to cereal production in most of sub-Saharan Africa and semi-arid tropical regions of Asia. Yield losses are mainly in maize, millet, rice and sorghum and most severe on marginal lands of subsistence farmers.
Strigolactones and Parasitic Plants SpringerLink
Common crop parasites Striga asiatica has a very wide geographic distribution, from Africa through southern and eastern Asia to Australia. Since the 1950s, it is also known from the United States. This introduction, likely a result of human activity, resulted in an infestation of corn (maize) across many counties in … See more Striga, commonly known as witchweed, is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. It is currently classified in the family Orobanchaceae, although older classifications place … See more Although most species of Striga are not pathogens that affect human agriculture, some species have devastating effects upon crops, … See more Temperatures ranging from 30 to 35 °C (86 to 95 °F) in a moist environment are ideal for germination. Witchweed will not develop in temperatures below 20 °C (68 °F). Agricultural … See more Maize, sorghum, and sugarcane crops affected by witchweed in the United States have an estimated value well over $20 billion. Furthermore, … See more Each plant is capable of producing between 90,000 and 500,000 seeds, which may remain viable in the soil for over 10 years. Most seeds produced are not viable. An annual plant, witchweed overwinters in the seed stage. Its seeds germinate in the … See more Management of witchweed is difficult because the majority of its life cycle takes place below ground. If it is not detected before emergence, it … See more • Striga densiflora in Hyderabad, India • Striga densiflora in Hyderabad • Striga densiflora in Hyderabad See more Web7 Jan 2024 · Striga hermonthica parasitizes gramineous plants including sorghum, maize and rice, but not dicots. To understand host recognition mechanisms of S. hermonthica, we investigated its interaction with nonhost dicots including Arabidopsis, cowpea, Lotus japonicus and Phtheirospermum japonicum, a hemiparasite. cudovista iz ormara 2001
Semagenesis and the parasitic angiosperm Striga asiatica
Web29 Jul 2024 · Parasitic STIs/STDs are caused by parasites passed from person-to-person and depending on the STI/STD, can be transmitted during sexual activity; during non-sexual contact with another individual; from mother to infant during birth, or breastfeeding; and in some instances, from towels, or other objects that come in contact with someone who … Web18 Mar 2024 · A recently completed five-year IAEA Coordinated Research Project (CRP) (D25005) has helped experts from 12 countries to identify novel sources of resistance to the devastating parasitic weed Striga in cereals with efficient protocols, which help them to reduce production constraints and improve food security.. Striga parasitic weeds are … Web26 Nov 2024 · Strigolactones are a particular class of plant metabolites with diverse biological functions starting from the stimulation of parasitic seed germination to phytohormonal activity. The expansion of parasitic weeds in the fields of developing countries is threatening the food supply and calls for simple procedures to combat these … cudovisna prica u parizu sinkronizirano