Induction of seed germination in Orobanche spp. by extracts of traditional Chinese medicinal herbs

Ma, Yongqing; Wei, Zhang; Dong, Shuqi; Ren, X.-N.; An, Yu; Liu, Ming

doi:10.1007/s11427-012-4302-2

Cited by 21 publications

(16 citation statements)

References 30 publications

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“…Previously, it was reported that Arabidopsis thaliana can differentially stimulate germination in numerous weed seeds [7] which strongly supports our findings. Furthermore, in a study, extracts from Chinese medicinal herbs have been shown to differentially stimulate seed germination in numerous Orobanche species [24] which is in agreement to our work. Current findings support the reported allelopathic influence of rice on the seed germination of sunflower broomrape and clover broomrape [27].…”

Section: The Differential Germination Indicates a Genetic And Biochemsupporting

confidence: 91%

“…Successful germination induction in the sunflower broomrape indicates that the crops used in rotation excrete certain chemical compounds that actively stimulate its germination. Previously, extracts from Chinese medicinal herbs have been reported to induce seed germination in numerous Orobanche species such as O. minor, O. cumana, and P. aegyptiaca [24], supporting our results that plant biochemicals induce germination of sunflower broomrape. Therefore, our findings lay the foundation for a research direction to identify bioactive compounds from wheat, pepper, and sugar beets using advanced technological protocols such as mass spectrophotometry.…”

Section: Differential Response Of Broomrape Species Indicates the Allsupporting

confidence: 90%

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A Two-Year Simulated Crop Rotation Confirmed the Differential Infestation of Broomrape Species in China Is Associated with Crop-Based Biostimulants

et al. 2019

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In Yanqi County of Xinjiang Uygur Autonomous Region, China, broomrape species (Orobanche cumana Wallr and Phelipanche aegyptiaca Pers.) contribute to significant losses of processing tomato and sunflower. During the past decades, a significant infestation pattern was observed between these broomrape species with no scientific peer-reviewed explanation. A two-year pot experiment simulating the crop rotation and an independent hydroponic experiment were performed to address the problem and indicate the main reason behind the differential infestation pattern. Different varieties of three crops (sugar beet, pepper, and wheat) were grown in rotation with tomato and sunflower to identify a crop-rotation induced control mechanism on these two broomrape species. Germination bioassays were performed in vitro to identify stimulation of plant biochemicals collected as methanolic shoots/roots extracts and root exudates on the germination patterns of broomrape seeds. Results indicated that sunflower broomrape soil seed banks reduced during the two-year crop rotation; however, Egyptian broomrape seed banks did not alter and the resulting parasitism significantly reduced tomato growth. Seed germination bioassays confirmed that the methanolic shoot/root extracts successfully stimulate sunflower broomrape seeds germination but fail to stimulate Egyptian broomrape seeds germination. Root exudates collected from hydroponically grown crops also confirmed differential germination patterns in both broomrape species. Current results are of vital importance to explain the control effect of a crop rotation system and moreover, lay the foundation to study the genetic evolution of broomrape species that results in their differential germination responses to natural stimuli.

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Section: The Differential Germination Indicates a Genetic And Biochemsupporting

confidence: 91%

Section: Differential Response Of Broomrape Species Indicates the Allsupporting

confidence: 90%

A Two-Year Simulated Crop Rotation Confirmed the Differential Infestation of Broomrape Species in China Is Associated with Crop-Based Biostimulants

et al. 2019

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“…Selection and breeding of varieties with a high germination-inducing activity to O. minor would be possible in wheat and cotton. The screening of more than 600 Chinese medicinal herb species for an investigation of their germination-inducing activities to O. cumana, O. minor and P. aegyptiaca indicated that the methanolic extracts of many Chinese herbal species effectively stimulate seed germination of the parasites [137].…”

Section: Trap Crop and Catch Cropmentioning

confidence: 99%

Recent research progress in combatting root parasitic weeds

Samejima

Sugimoto

2018

Biotechnology & Biotechnological Equipment

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The obligate root parasitic Orobanchaceae plants Striga, Orobanche and Phelipanche spp. parasitize economically important crops, vegetables and oil plants. They are the most devastating agricultural weed pests worldwide. Based on an analysis of the climatic requirements of these parasites, very large areas of new territory are at risk of invasion if care is not taken. Recent research in combatting root parasitic weeds was reviewed based on scientific papers reported from 2010 and onwards. The countermeasures fell into eight kinds: resistant varieties, tolerant varieties, microbiological approach, cultural practices, chemical controls, host-induced gene silencing, integrated management and dissemination of technologies including the current situation survey. The development of practical, feasible and economical control technologies against root parasitic weeds would be expected by advancing and combining the countermeasures.

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“…Different plant species have been reported to show a strong ability to stimulate seed germination of different Orobanche species by more than 90%, and extracts of hundreds of plant species were tested for possibly stimulating or inhibiting seed germination of different Orobanche spp. ; many proved effective and may be considered as trap, cover, and catch species or a source of natural germination stimulants for these parasites [104][105][106].…”

Section: Germination Stimulantsmentioning

confidence: 99%

Weed Seed Dormancy: The Ecophysiology and Survival Strategies

Qasem¹

2020

Seed Dormancy and Germination

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This chapter deals with seed dormancy of agricultural weeds, its definitions and types from the physiological and ecological point of view, and physiological and ecological factors inducing dormancy in different weed species. The role of different environmental factors, agricultural practices including herbicides application, selection pressure, and seasonal dormancy, weed density and population regulation, seed phenology, polymorphism, and modifications were emphasized. Factors induce or terminate dormancy and enhance seed germination and dormancy breaking have been mentioned and evaluated in addition to the ecological importance of seed dormancy and herbicide resistance, genetic bases of dormancy, and molecular studies were presented. The role of allelochemicals, stresses, and dormancy and their effects on seed longevity and germination regulation were thoroughly discussed. Dormancy breaking under laboratory conditions, role of plant hormones and other chemicals, and dormancy management in the field were reviewed in addition to information on seed dormancy/longevity and germination stimulants. Seed germination stimulants and inhibitors of parasitic weed and seed dormancy as a weed survival strategy were presented and discussed.

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Induction of seed germination in Orobanche spp. by extracts of traditional Chinese medicinal herbs

Abstract: The co-evolution of Orobanche spp. and their hosts within the same environment has resulted in a high degree of adaptation and effective parasitism whereby the host releases parasite germination stimulants, which are likely to be unstable in the soil.

Cited by 21 publications

References 30 publications

A Two-Year Simulated Crop Rotation Confirmed the Differential Infestation of Broomrape Species in China Is Associated with Crop-Based Biostimulants

A Two-Year Simulated Crop Rotation Confirmed the Differential Infestation of Broomrape Species in China Is Associated with Crop-Based Biostimulants

Recent research progress in combatting root parasitic weeds

Weed Seed Dormancy: The Ecophysiology and Survival Strategies

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