Recent progress on sunflower broomrape research in China

Shi, Bixian; Jun, Zhao

doi:10.1051/ocl/2020023

Cited by 14 publications

(7 citation statements)

References 17 publications

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“…aegyptiaca in China. Orobanche cumana was reported mainly on sunflower in Inner Mongolia, Xinjiang, Heilongjiang, Jilin, Shanxi, Shaanxi, Hebei, Gansu, and Ningxia provinces (Shi & Zhao, 2020 ; Wu et al, 2020 ). The model's simulation results highlighted that the suitable areas of O .…”

Section: Discussionmentioning

confidence: 99%

“…The predictive models constructed with MaxEnt were highly consistent with the known distribution of O. cumuan and P. aegyptiaca in China. Orobanche cumana was reported mainly on sunflower in Inner Mongolia, Xinjiang, Heilongjiang, Jilin, Shanxi, Shaanxi, Hebei, Gansu, and Ningxia provinces (Shi & Zhao, 2020;Wu et al, 2020) temperatures required for its conditioning and germination, which was found to be around 25-30°C: both lower and higher temperatures resulted in poor germination (Shi et al, 2018). Meanwhile, this also may be attributed to transitory or constantly high atmospheric temperatures causing a series of heat injuries, physiological disorders, and morphological and biochemical changes in plants (Lipiec et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…In China, O . cumana was first discovered by a farmer in Zhaozhou County of Heilongjiang Province in 1959 (Shi & Zhao, 2020 ). Gradually, O .…”

Section: Methodsmentioning

confidence: 99%

“…The damage of O. cumana in sunflowers has lasted for nearly 100 years (Parker, 2009). In China, O. cumana was first discovered by a farmer in Zhaozhou County of Heilongjiang Province in 1959 (Shi & Zhao, 2020). Gradually, O. cumana spread widely to different sunflower planting areas of Inner Mongolia, Xinjiang, Heilongjiang, Shanxi, Jilin, Shaanxi, Hebei, Gansu, and Ningxia.…”

Section: Species Studymentioning

confidence: 99%

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Identification of risk areas for Orobanche cumana and Phelipanche aegyptiaca in China, based on the major host plant and CMIP6 climate scenarios

Zhang

Cao

Yao

et al. 2022

Ecology and Evolution

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Parasitic broomrape of the genus Orobanche poses a formidable threat to producing many crops in Europe, Africa, and Asia. Orobanche cumana and Phelipanche aegyptiaca are two of China's most destructive root parasitic plants, causing extreme sunflower, tomato, melon, and tobacco damage. However, the potentially suitable areas of O. cumana and P. aegyptiaca in China have not been predicted, and little is known about the important environmental factors that affect their extension. Due to their invasiveness and economic importance, studying how climate change and host plants may affect broomrapes' distribution is necessary. In the study, we first predicted the potentially suitable areas of the invasive weeds (O. cumana and P. aegyptiaca) and their susceptible host plants (Helianthus annuus and Solanum lycopersicon) using MaxEnt. Then, the risk zones and distribution shifts of two broomrapes under different climate conditions were identified by incorporating the distribution of their susceptible host plants. The results highlighted that the potential middle-and high-risk zones for O. cumana and P. aegyptiaca amounted to 197.88 × 10 4 km 2 and 12.90 × 10 4 km 2 , respectively. Notably, Xinjiang and Inner Mongolia were the highest-risk areas within the distribution and establishment of O. cumana and P. aegyptiaca. Elevation and topsoil pH were the decisive factors for shaping O. cumana distribution; precipitation seasonality and annual precipitation were the dominant bioclimatic variables limiting the spread of P. aegyptiaca. The potentially suitable areas and risk zones of O. cumana would decrease significantly, and those of P. aegyptiaca would fluctuate slightly under future climate change scenarios. Overall, our study suggested that the two broomrapes' risk zones will significantly northward to higher latitudes. The results will provide suggestions for preventing O. cumana and P. aegyptiaca.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…In China, O . cumana was first discovered by a farmer in Zhaozhou County of Heilongjiang Province in 1959 (Shi & Zhao, 2020 ). Gradually, O .…”

Section: Methodsmentioning

confidence: 99%

Section: Species Studymentioning

confidence: 99%

See 2 more Smart Citations

Identification of risk areas for Orobanche cumana and Phelipanche aegyptiaca in China, based on the major host plant and CMIP6 climate scenarios

Zhang

Cao

Yao

et al. 2022

Ecology and Evolution

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“…Sunflower has been widely cultivated in northeast China. After the seeds are used for oil extraction, sunflower receptacles have largely been discarded [ 4 , 5 , 6 ], which not only wastes resources, but also pollutes the environment. Sunflower receptacles contains many active compounds, including flavonoids [ 7 , 8 ], alkaloids [ 9 , 10 ], and chlorogenic acid [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Clustering Analysis, Structure Fingerprint Analysis, and Quantum Chemical Calculations of Compounds from Essential Oils of Sunflower (Helianthus annuus L.) Receptacles

Liu

Han

et al. 2022

IJMS

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Sunflower (Helianthus annuus L.) is an appropriate crop for current new patterns of green agriculture, so it is important to change sunflower receptacles from waste to useful resource. However, there is limited knowledge on the functions of compounds from the essential oils of sunflower receptacles. In this study, a new method was created for chemical space network analysis and classification of small samples, and applied to 104 compounds. Here, t-SNE (t-Distributed Stochastic Neighbor Embedding) dimensions were used to reduce coordinates as node locations and edge connections of chemical space networks, respectively, and molecules were grouped according to whether the edges were connected and the proximity of the node coordinates. Through detailed analysis of the structural characteristics and fingerprints of each classified group, our classification method attained good accuracy. Targets were then identified using reverse docking methods, and the active centers of the same types of compounds were determined by quantum chemical calculation. The results indicated that these compounds can be divided into nine groups, according to their mean within-group similarity (MWGS) values. The three families with the most members, i.e., the d-limonene group (18), α-pinene group (10), and γ-maaliene group (nine members) determined the protein targets, using PharmMapper. Structure fingerprint analysis was employed to predict the binding mode of the ligands of four families of the protein targets. Thence, quantum chemical calculations were applied to the active group of the representative compounds of the four families. This study provides further scientific information to support the use of sunflower receptacles.

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microRNA‐encoded peptides inhibit seed germination of the root parasitic plant Orobanche cumana

Tourneur,

Combier,

Plaza

et al. 2024

Plants People Planet

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Societal Impact StatementThe root parasitic plant Orobanche cumana (sunflower broomrape) is one of the major pests of sunflower crops. Despite intense efforts to develop effective agricultural practices and breeding programs, selective control of broomrapes is still rare and ineffective in terms of sustainability. It is thus essential to develop new specific control methods against those pests. miRNA‐encoded peptides (miPEPs) are a new class of peptides regulating the expression of miRNAs and their corresponding target genes. This study demonstrates that certain miPEPs strongly inhibit the germination of broomrape seeds by regulating their miR gene, making them good candidates for use as biocontrol agents against this pathogen.Summary Root parasitic plants of the Orobanchaceae family are a constant and growing threat to agriculture worldwide. Among them, the parasitic weed Orobanche cumana, the sunflower broomrape, causes significant losses to sunflower production in European‐Asian and North African countries. Despite the use of several conventional control methods against this pathogen, none has proved effective or durable, underlining the need to develop innovative strategies. miRNA‐encoded peptides (miPEPs) are regulatory peptides stimulating the expression of their own primary transcript of miRNA, and plant watering with those molecules leads to down‐regulating specifically miRNA target genes and altering plant physiology. Through seed germination assays and qRT‐PCR analysis, we investigated the impact of exogenous treatments of synthetic miPEPs on broomrape seed germination. First, we report that the conserved miRNA repertoire of O. cumana consists of 39 members. Thirty‐nine miPEPs were designed, synthetized, and assayed, 11 of which strongly inhibited O. cumana seed germination. Interestingly, miPEP319a showed the strongest inhibiting effect while miPEP319b did not. Three out of the four corresponding miR319 target genes showed upregulation after treatment with a germination stimulant, which was impaired by treatment with miPEP319a. This downregulation of expression is associated with an increase in the expression of the corresponding pri‐miR319a. We reveal thus that the use of miPEPs can increase our knowledge of key molecular mechanisms underlying a complex parasite interaction and should provide a new phytosanitary method to control broomrape parasitism with highly specific and biodegradable natural substances.

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Recent progress on sunflower broomrape research in China

Cited by 14 publications

References 17 publications

Identification of risk areas for Orobanche cumana and Phelipanche aegyptiaca in China, based on the major host plant and CMIP6 climate scenarios

Identification of risk areas for Orobanche cumana and Phelipanche aegyptiaca in China, based on the major host plant and CMIP6 climate scenarios

Clustering Analysis, Structure Fingerprint Analysis, and Quantum Chemical Calculations of Compounds from Essential Oils of Sunflower (Helianthus annuus L.) Receptacles

microRNA‐encoded peptides inhibit seed germination of the root parasitic plant Orobanche cumana

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