In Vitro and In Vivo Evaluation of Sorghum (<i>Sorghum bicolor</i> L. Moench) Genotypes for Pre- and Post-attachment Resistance against Witchweed (<i>Striga asiatica</i> L. Kuntze)

Gwatidzo, V. O.; Rugare, Joyful Tatenda; Mabasa, Stanford; Mandumbu, Ronald; Chipomho, Justin; Chikuta, S.

doi:10.1155/2020/9601901

Cited by 7 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The parasitism of witchweed (Striga spp.) has a significant impact on the head index, leaf biomass, leaf index, root biomass, root index, plant biomass, and root: shoot ratio of sorghum (Sorghum bicolor L. Moench) [16]. Rhinanthus minor has a direct negative influence on host productivity and competitive ability, which helps reconstruct plant communities in grassland [17].…”

Section: Discussionmentioning

confidence: 99%

Combined Metabolome and Transcriptome Analysis Highlights the Host’s Influence on Cistanche deserticola Metabolite Accumulation

Feng

Wei

et al. 2023

IJMS

View full text Add to dashboard Cite

The medicinal plant Cistanche deserticola Ma (Orobanchaceae) is a holoparasitic angiosperm that takes life-essential materials from Haloxylon ammodendron (C. A. Mey.) Bunge (Amaranthaceae) roots. Although many experiments have been conducted to improve the quality of C. deserticola, little attention has been paid to the host’s influence on metabolite accumulation. In this study, transcriptomic and metabolomic analyses were performed to unveil the host’s role in C. deserticola’s metabolite accumulation, especially of phenylethanoid glycosides (PhGs). The results indicate that parasitism by C. deserticola causes significant changes in H. ammodendron roots in relation to metabolites and genes linked to phenylalanine metabolism, tryptophan metabolism and phenylpropanoid biosynthesis pathways, which provide precursors for PhGs. Correlation analysis of genes and metabolites further confirms that C. deserticola’s parasitism affects PhG biosynthesis in H. ammodendron roots. Then we found specific upregulation of glycosyltransferases in haustoria which connect the parasites and hosts. It was shown that C. deserticola absorbs PhG precursors from the host and that glycosylation takes place in the haustorium. We mainly discuss how the host resists C. deserticola parasitism and how this medicinal parasite exploits its unfavorable position and takes advantage of host-derived metabolites. Our study highlights that the status of the host plant affects not only the production but also the quality of Cistanches Herba, which provides a practical direction for medicinal plant cultivation.

show abstract

Section: Discussionmentioning

confidence: 99%

Combined Metabolome and Transcriptome Analysis Highlights the Host’s Influence on Cistanche deserticola Metabolite Accumulation

Feng

Wei

et al. 2023

IJMS

View full text Add to dashboard Cite

show abstract

“…The chlorophyll content is another parameter negatively impacted by Striga infestation in host plants (Gwatidzo et al, 2020;Makani et al, 2020). Previous studies showed also that Striga parasitism causes distress in C production in host plants, which may limit N and Mg assimilation, resulting in low chlorophyll synthesis (Gurney et al, 2002;Mwangangi et al, 2021).…”

Section: Chlorophyll Contentmentioning

confidence: 99%

Harnessing plant resistance against Striga spp. parasitism in major cereal crops for enhanced crop production and food security in Sub-Saharan Africa: a review

2023

View full text Add to dashboard Cite

Given their long-lasting seed viability, 15–20-year lifespan and their high seed production levels, a significant impact of parasitic plant Striga spp. on African food production is inevitable. Over the last decades, climate change has increasingly favoured the adaptability, spread and virulence of major Striga species, S. hermonthica and S. asiatica, across arable land in Sub-Saharan Africa (SSA). These parasitic weeds are causing important yield losses on several staple food crops and endangering food and nutritional security in many SSA countries. Losses caused by Striga spp. are amplified by low soil fertility and recurrent droughts. The impact of Striga parasitism has been characterized through different phenotypic and genotypic traits assessment of their host plants. Among all control strategies, host-plant resistance remains the most pro-poor, easy-to-adopt, sustainable and eco-friendly control strategy against Striga parasitism. This review highlights the impact of Striga parasitism on food security in SSA and reports recent results related to the genetic basis of different agronomic, pheno-physiological and biochemical traits associated with the resistance to Striga in major African cereal food crops.

show abstract

“…Identification of stress resistance/tolerance in crop genotypes is one of the major ways to control crop pests and diseases and reduce the impact of abiotic stresses through crop improvement. For instance, sorghum genotypes tolerant to witchweed in Zimbabwe were identified which could be grown in areas prone to witchweed infestations [91]. The breeding techniques of screening genotypes for stress tolerance/resistance is also being used in identifying maize, wheat and sorghum genotypes with tolerance to heat, drought and combined heat and drought stress conditions [42,52].…”

Section: Increasing the Resilience Of Cereal Production Systems 41 Breeding For Stress Tolerance/resistancementioning

confidence: 99%

Building Stress Resilience of Cereals under Future Climatic Scenarios: ‘The Case of Maize, Wheat, Rice and Sorghum’

Muitire¹,

Kamutando²,

Moyo³

2021

Cereal Grains - Volume 1

View full text Add to dashboard Cite

World population is projected to reach 10 billion by 2050 and the phenomenon is expected to cause a surge in demand for food, feed and industrial raw materials. Cereals (i.e., carbohydrate-rich grain crops) are the most widely grown and consumed crops worldwide. All cereals combined provide approximately 56% and 50% of global energy and protein needs, respectively. Maize, wheat, rice, barley and sorghum are the most produced and consumed cereals, globally. These are widely grown across the world from the tropics to the temperate regions. Although efforts are being done by governments, research organizations and academic institutions to increase productivity of these important crops, huge yield deficits still exist. Climate induced biotic (e.g., pests and diseases) as well as abiotic stresses (especially; heat and drought) are widely regarded as the key yield-constraining factors of most cereal crops. Given the contribution of cereals in global food and nutrition security, improvements in productivity of cereal production systems is mandatory if livelihoods are to be guaranteed. This chapter discusses the global production and utilization of four of the major global cereals, limiting factors to their productivity and possible solutions to the production constraints.

show abstract

In Vitro and In Vivo Evaluation of Sorghum (Sorghum bicolor L. Moench) Genotypes for Pre- and Post-attachment Resistance against Witchweed (Striga asiatica L. Kuntze)

Cited by 7 publications

References 37 publications

Combined Metabolome and Transcriptome Analysis Highlights the Host’s Influence on Cistanche deserticola Metabolite Accumulation

Combined Metabolome and Transcriptome Analysis Highlights the Host’s Influence on Cistanche deserticola Metabolite Accumulation

Harnessing plant resistance against Striga spp. parasitism in major cereal crops for enhanced crop production and food security in Sub-Saharan Africa: a review

Building Stress Resilience of Cereals under Future Climatic Scenarios: ‘The Case of Maize, Wheat, Rice and Sorghum’

Contact Info

Product

Resources

About