A transcriptome analysis uncovers Panax notoginseng resistance to Fusarium solani induced by methyl jasmonate

Liu, Diqiu; Zhao, Qin; Cui, Xiuming; Chen, Rui; Li, Xin; Qiu, Bingling; Ge, Feng

doi:10.1007/s13258-019-00865-z

Cited by 47 publications

(39 citation statements)

References 35 publications

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“…Inoculation with D212 enhanced the resistance of P. notoginseng against root rot disease, promoted root growth ( Figure 3) and secondary metabolite saponin production in P. notoginseng ( Figure 4A-E) accompanied by the production of IAA and JA ( Figure 5). These results show that the two phytohormones IAA and JA are important in the interaction between endophytic fungi and host plants grown under biotic stress, as described in a previous study (Liu et al 2019), and the host plant P. notoginseng benefited from colonization by D212. However, inoculation with D212 did not promote rice root growth accompanied by increased IAA content ( Figure 8D).…”

Section: Discussionsupporting

confidence: 83%

Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid

Han

Zhou

Zhao

et al. 2020

JIPB

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Endophytic fungi can be beneficial to plant growth. However, the molecular mechanisms underlying colonization of Acremonium spp. remain unclear. In this study, a novel endophytic Acremonium strain was isolated from the buds of Panax notoginseng and named Acremonium sp. D212. The Acremonium sp. D212 could colonize the roots of P. notoginseng, enhance the resistance of P. notoginseng to root rot disease, and promote root growth and saponin biosynthesis in P. notoginseng. Acremonium sp. D212 could secrete indole‐3‐acetic acid (IAA) and jasmonic acid (JA), and inoculation with the fungus increased the endogenous levels of IAA and JA in P. notoginseng. Colonization of the Acremonium sp. D212 in the roots of the rice line Nipponbare was dependent on the concentration of methyl jasmonate (MeJA) (2–15 μmol/L) and 1‐naphthalenacetic acid (NAA) (10–20 μmol/L). Moreover, the roots of the JA signaling‐defective coi1‐18 mutant were colonized by Acremonium sp. D212 to a lesser degree than those of the wild‐type Nipponbare and miR393b‐overexpressing lines, and the colonization was rescued by MeJA but not by NAA. It suggests that the cross‐talk between JA signaling and the auxin biosynthetic pathway plays a crucial role in the colonization of Acremonium sp. D212 in host plants.

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Section: Discussionsupporting

confidence: 83%

Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid

Han

Zhou

Zhao

et al. 2020

JIPB

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“…The absence or presence of cis-elements in promoters may have an important impact on the interpretation of divergences in gene functions. For example, as a plant hormone, MeJA plays a key role in biological stress signaling and helps to improve the disease resistance of Panax notoginseng cultivars [62]. Here, our data indicated that six GbCHI genes were upregulated under inoculation treatment, which all contained MeJA-responsive cis-acting regulatory elements in their promoters (Table S4).…”

Section: Discussionmentioning

confidence: 59%

The Chalcone Isomerase Family in Cotton: Whole-Genome Bioinformatic and Expression Analyses of the Gossypium barbadense L. Response to Fusarium Wilt Infection

Zheng

et al. 2019

Genes

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Chalcone isomerase (CHI) is a key component of phenylalanine metabolism that can produce a variety of flavonoids. However, little information and no systematic analysis of CHI genes is available for cotton. Here, we identified 33 CHI genes in the complete genome sequences of four cotton species (Gossypium arboretum L., Gossypium raimondii L., Gossypium hirsutum L., and Gossypium barbadense L.). Cotton CHI proteins were classified into two main groups, and whole-genome/segmental and dispersed duplication events were important in CHI gene family expansion. qRT-PCR and semiquantitative RT-PCR results suggest that CHI genes exhibit temporal and spatial variation and respond to infection with Fusarium wilt race 7. A preliminary model of CHI gene involvement in cotton evolution was established. Pairwise comparison revealed that seven CHI genes showed higher expression in cultivar 06-146 than in cultivar Xinhai 14. Overall, this whole-genome identification unlocks a new approach to the comprehensive functional analysis of the CHI gene family, which may be involved in adaptation to plant pathogen stress.

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“…We identified 15 contigs associated with partitiviruses from the two different transcriptomes of Panax notoginseng , which is a traditional Chinese medicine belonging to the genus Panax in the family Araliaceae . Nine contigs were identified from the first study (BioProject PRJNA393585) [32] and six contigs were identified from the second study (BioProject PRJNA472654) [33]. The sizes of identified contigs ranged from 1,013 bp to 1,836 bp.…”

Section: Resultsmentioning

confidence: 99%

Identification of viruses belonging to the familyPartitiviridaefrom plant transcriptomes

Cho

2020

Preprint

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1Viruses in the family Partitiviridae consist of non-enveloped viruses with bisegmented double-2 stranded RNA genomes. Viruses in this family have been identified from plants and fungi. In 3 this study, we identified several viruses belonging to the family Partitiviridae using plant 4 transcriptomes. From 11 different plant species, we identified a total of 74 RNA segments 5 representing 23 partitiviruses. Of 74 RNA segments, 28 RNA segments encode RNA-6 dependent RNA polymerases (RdRp) while 46 RNA segments encode coat proteins (CPs). 7According to ICTV demarcation for the family Partitiviridae, 25 RNAs encoding RdRp and 8 41 RNAs encoding CP were novel RNA segments. In addition, we identified eight RNA 9 segments (three for RdRp and five for CP) belonging to the known partitivruses. Taken together, 10 this study provides the largest number of partitiviruses from plant transcriptomes in a single 11 study. Viruses in the family Partitiviridae consist of non-enveloped viruses with bisegmented double-2 stranded (ds) RNA genomes [1]. Each RNA segment of the viruses in the family Partitiviridae 3 encodes a single protein including RNA-dependent RNA polymerase (RdRp) or coat protein 4 (CP). Members in the family Partitiviridae can be divided into five different genera according 5 to the host. For example, viruses in the genera Alphapartitivirus and Betapartitivirus are 6 identified from either plants or fungi while viruses in the genus Gammapartitivirus and 7 Deltapartitivirus are derived from only fungi and plants, respectively [1]. In addition, viruses 8 in the genus Cryspovirus are identified from protozoa. Transmission of partitiviruses is 9 occurred by seeds (plants), cell division and sporogenesis (fungi), and oocytes (protozoa) [1]. 10 To date, there are more than 45 partitivirus species. In particular, there are five deltapartitivirus 11 species infecting plants including Pepper cryptic virus 1 (PCV-1) [2], Pepper cryptic virus 2 12 (PCV-2), Fig cryptic virus (FCV) [3], Beet cryptic virus 2 (BCV2), and Beet cryptic virus 3 13 (BCV3) [4] according to International Committee on Taxonomy of Viruses (ICTV). 14 To identify novel partitiviruses with dsRNA genomes, dsRNA extraction followed by 15 next-generation sequencing (NGS) is an efficient approach. Based on those approaches, several 16 partitiviruses have been identified. For example, Melon necrotic spot virus was identified from 17 watermelon plant (Citrullus lanatus Thunb) using SOLiD NGS analysis [5]. Pittosporum 18 cryptic virus 1 was identified from an Italian pittosporum plant by NGS with extracted dsRNA 19 [6]. Similarly, application of NGS to extracted dsRNA has resulted in identification of 20 Trichoderma atroviride partitivirus 1 from the fungal species Trichoderma atroviride [7]. 21 Moreover, instead of traditional molecular cloning methods, in silico data analyses has 22 resulted in identification of diverse dsRNA viruses from expressed sequence tag (EST) 23 database [8] and plant transcriptomes [9-13]. Moreover, 120 mycoviruses infecting fungi have...

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A transcriptome analysis uncovers Panax notoginseng resistance to Fusarium solani induced by methyl jasmonate

Cited by 47 publications

References 35 publications

Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid

Colonization of endophyte Acremonium sp. D212 in Panax notoginseng and rice mediated by auxin and jasmonic acid

The Chalcone Isomerase Family in Cotton: Whole-Genome Bioinformatic and Expression Analyses of the Gossypium barbadense L. Response to Fusarium Wilt Infection

Identification of viruses belonging to the familyPartitiviridaefrom plant transcriptomes

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