Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

Zhang, Jingxiong; Li, Shalan; Li, Wenxing; Feng, Zerui; Zhang, Shuhan; Zheng, Xijie; Xu, Yuxing; Shen, Guojing; Zhao, Man; Cao, Guoyan; Wu, Xuna; Wu, Jianqiang

doi:10.1016/j.pld.2023.11.005

Plant Diversity

2024

DOI: 10.1016/j.pld.2023.11.005

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Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

Jingxiong Zhang,

Shalan Li,

Wenxing Li

et al.

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2024

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Cited by 3 publications

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One organ to infect them all: the Cuscuta haustorium

Balios,

Fischer,

Bawin

et al. 2024

Annals of Botany

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Background Research on the parasitic plant genus Cuscuta has flourished since the genomes of several of its species were published. Most of the research revolves around the iconic infection organ that secures the parasite’s sustenance: the haustorium. The interest in understanding the structure-function-regulation relationship of the haustorium is based as much on the wish to find ways to keep the parasite under control as on the opportunities it offers to shed light on various open questions in plant biology. Scope The review will briefly introduce parasitism among plants, using the genus Cuscuta as main example, before presenting its haustorium alongside the terminology that is used to describe its architecture. Possible evolutionary origins of this parasitic organ are presented. The haustorium is then being followed from its initiation to maturity under contemplation of the molecular landscape that accompanies the morphological changes and in the light of the challenges it must overcome before gaining access to the vascular cells of its hosts. The fact that Cuscuta has an unusually broad host range stresses how efficient its infection strategy is. Therefore, special consideration will be given in the final chapter to a comparison with the process of grafting, being the only other type of tissue connection that involves interspecific vascular continuity. Conclusions Studies on Cuscuta haustoriogenesis have revealed many molecular details that explain its success. They have also unearthed some mysteries, that wait to be solved. With a better understanding of the complexity of the infection with its combination of universal as well as host-specific elements that allow Cuscuta to parasitize on a wide range of host plant species, we may be many steps closer to not only containing the parasite better but also exploiting its tricks where they can serve us in the quest of producing more and better food and fodder.

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One organ to infect them all: the Cuscuta haustorium

Balios,

Fischer,

Bawin

et al. 2024

Annals of Botany

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“Exploring therapeutic potential and toxicological profiles of Cuscuta species: insights from pharmacological studies and an anti-cholinergic toxicity report.”

Bhandare

2024

Toxicology Research

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This study examines the therapeutic potential and toxicological profiles of Cuscuta species based on recent pharmacological investigations: “a therapeutic potential vs. toxicological risks of Cuscuta species: a pharmacological-toxicology dilemma.” The study encompasses diverse research areas, including the mitigation of Bisphenol A (BPA)-induced ovarian damage using Cuscuta chinensis flavonoids (CCFs), acute and sub-acute toxicity assessments of Cuscuta chinensis Lam. water extract (CLW), and observations on Cuscuta campestris toxicity in horses. In addition, this scientific study discusses the interplant communication dynamics between soybean and the parasitic dodder (Cuscuta australis) under nutrient deficiency conditions. Key significant findings highlight the efficacy of CCFs in alleviating BPA-induced ovarian damage, the safety profile of CLW within specified doses, and clinical manifestations of C. campestris toxicity in horses. Moreover, insights into interplant communication mechanisms emphasise the significance of protein-mediated interactions in nutrient-deficient environments. The report illustrates the potential toxicity of Dodder in humans, and further research findings into its chemical composition and toxicological profiles reveal great data on its phytotoxicity. Greater awareness and understanding of the risks associated with consuming Dodder and other similar plant species are crucial for preventing plant intoxication and have been a significant major focus of the present toxicology study of Cuscuta species. Hence, by addressing these objectives, the scientific study aims to balance the therapeutic benefits of Cuscuta species with their potential toxicological risks, contributing to a more nuanced understanding of their role in pharmacology and toxicology. This dual focus is crucial for guiding future research and informing safe usage practices.

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MicroRNA399s and strigolactones mediate systemic phosphate signaling between dodder‐connected host plants and control association of host plants with rhizosphere microbes

Zhao,

Zheng,

et al. 2024

New Phytologist

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Summary A dodder (Cuscuta) often simultaneously parasitizes two or more adjacent hosts. Phosphate (Pi) deficiency is a common stress for plants, and plants often interact with soil microbes, including arbuscular mycorrhizal fungi (AMF), to cope with Pi stress. Little is known about whether dodder transmits Pi deficiency‐induced systemic signals between different hosts. In this study, dodder‐connected plant clusters, each composed of two tobacco (Nicotiana tabacum) plants connected by a dodder, were established, and in each cluster, one of the two tobacco plants was treated with Pi starvation. AMF colonization efficiency, rhizosphere bacterial community, and transcriptome were analyzed in the other dodder‐connected Pi‐replete tobacco plant to study the functions of interplant Pi signals. We found that dodder transfers Pi starvation‐induced systemic signals between host plants, resulting in enhanced AMF colonization, changes of rhizosphere bacterial communities, and alteration of transcriptomes in the roots of Pi‐replete plants. Importantly, genetic analyses indicated that microRNA399s (miR399s) and strigolactones suppress the systemic Pi signals and negatively affect AMF colonization in the Pi‐replete plants. These findings provide new insight into the ecological role of dodder in mediating host–host and host–microbe interactions and highlight the importance of strigolactone and miR399 pathways in systemic Pi signaling.

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Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

Cited by 3 publications

References 42 publications

One organ to infect them all: the Cuscuta haustorium

One organ to infect them all: the Cuscuta haustorium

“Exploring therapeutic potential and toxicological profiles of Cuscuta species: insights from pharmacological studies and an anti-cholinergic toxicity report.”

MicroRNA399s and strigolactones mediate systemic phosphate signaling between dodder‐connected host plants and control association of host plants with rhizosphere microbes

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