Parasitic relationship of Cistanche deserticola and host-plant Haloxylon ammodendron based on genetic variation of host

Shen, Liang; Xu, Ru; Liu, Sai; Xu, Chunping; Peng, Fang; Li, Xiaojin; Zhu, Guoqiang; Xie, Chao; Zhu, Jian; Liu, Tong-Ning; Chen, Jun

doi:10.1016/j.chmed.2019.04.006

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…Cistanche deserticola and Haloxylon ammodendron are common desert plants in northwest China, with the ecological effects of wind protection and sand fixation [ 26 ]. C. deserticola is parasitic upon H. ammodendron [ 27 ], with economic benefits as both medicine and food. Several studies reported that the pharmacological effects of Cistanche included neuroprotective, immunomodulatory, anti-senescence, anti-inflammatory, anti-osteoporosis, hepatoprotective, anti-oxidative, anti-bacterial, anti-tumor and glucose tolerance improving effects [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

From guest to host: parasite Cistanche deserticola shapes and dominates bacterial and fungal community structure and network complexity

Miao

Zhang

et al. 2023

Environmental Microbiome

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Background Rhizosphere and plant microbiota are assumed to play an essential role in deciding the well-being of hosts, but effects of parasites on their host microbiota have been rarely studied. Also, the characteristics of the rhizosphere and root microbiota of parasites and hosts under parasitism is relatively unknown. In this study, we used Cistanche deserticola and Haloxylon ammodendron from cultivated populations as our model parasites and host plants, respectively. We collected samples from BULK soil (BULK), rhizosphere soil of H. ammodendron not parasitized (NCD) and parasitized (RHA) to study how the parasite influenced the rhizosphere microbiota of the host. We also collected samples from the rhizosphere soil and roots of C. deserticola (RCD and ECD) and Haloxylon ammodendron (RHA and EHA) to explore the difference between the microbiota of the parasite and its host under parasitism. Results The parasite reduced the compositional and co-occurrence network complexities of bacterial and fungal microbiota of RHA. Additionally, the parasite increased the proportion of stochastic processes mainly belonging to dispersal limitation in the bacterial microbiota of RHA. Based on the PCoA ordinations and permutational multivariate analysis of variance, the dissimilarity between microbiota of C. deserticola and H. ammodendron were rarely evident (bacteria, R2 = 0.29971; fungi, R2 = 0.15631). Interestingly, four hub nodes of H. ammodendron in endosphere fungal microbiota were identified, while one hub node of C. deserticola in endosphere fungal microbiota was identified. It indicated that H. ammodendron played a predominant role in the co-occurrence network of endosphere fungal microbiota. Source model of plant microbiome suggested the potential source percentage from the parasite to the host (bacteria: 52.1%; fungi: 16.7%) was lower than host-to-parasite (bacteria: 76.5%; fungi: 34.3%), illustrating that microbial communication was bidirectional, mainly from the host to the parasite. Conclusions Collectively, our results suggested that the parasite C. deserticola shaped the diversity, composition, co-occurrence network, and community assembly mechanisms of the rhizosphere microbiota of H. ammodendron. Additionally, the microbiota of C. deserticola and H. ammodendron were highly similar and shared. Our findings on parasite and host microbiota provided a novel line of evidence supporting the influence of parasites on the microbiota of their hosts.

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Section: Introductionmentioning

confidence: 99%

From guest to host: parasite Cistanche deserticola shapes and dominates bacterial and fungal community structure and network complexity

Miao

Zhang

et al. 2023

Environmental Microbiome

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Diversification and historical demography of Haloxylon ammodendron in relation to Pleistocene climatic oscillations in northwestern China

Chen

Zhang

et al. 2022

PeerJ

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The influence of aridification and climatic oscillations on the genetic diversity and evolutionary processes of organisms during the Quaternary in northwestern China is examined using Haloxylon ammodendron. Based on the variation of two cpDNA regions (trnS-trnG and trnV) and one nDNA sequence (ITS1-ITS4) in 420 individuals from 36 populations, the spatial genetic structure and demographic history of H. ammodendron in arid China is examined. Median-joining network and Bayesian inference trees enabled the identification of three diverged lineages within H. ammodendron from 24 different haplotypes and 16 ribotypes, distributed across western (Xinjiang), eastern (Gansu and Inner Mongolia) and southern (Qinghai) regions. AMOVA analysis demonstrated that more than 80% of observed genetic variation related to lineage split was based on cpDNA and nDNA variation. Allopatric divergence among the three groups was mainly triggered by geographical isolation due to Xingxingxia rock and uplift of the Qilian Mountains during the Quaternary. Local adaptive differentiation among western, eastern and southern groups occurred due to gene flow obstruction resulting from arid landscape fragmentation accompanied by local environmental heterogeneity of different geographical populations. The southern margin of the Junggar Basin and the Tengger Desert possibly served as two independent glacial refugia for H. ammodendron. The distribution of genetic variation, coupled with SDMs and LCP results, indicated that H. ammodendron probably moved northward along the Junggar Basin and westward along Tengger Desert at the end of the last glacial maximum; postglacial re-colonization was probably westward and southward along the Hexi Corridor.

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Parasitic relationship of Cistanche deserticola and host-plant Haloxylon ammodendron based on genetic variation of host

Cited by 2 publications

References 25 publications

From guest to host: parasite Cistanche deserticola shapes and dominates bacterial and fungal community structure and network complexity

From guest to host: parasite Cistanche deserticola shapes and dominates bacterial and fungal community structure and network complexity

Diversification and historical demography of Haloxylon ammodendron in relation to Pleistocene climatic oscillations in northwestern China

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