Phylogenetic affinities and <i>in vitro</i> seed germination of the threatened New Zealand orchid <i>Spiranthes novae-zelandiae</i>

Frericks, Jonathan; Munkacsi, Andrew B.; Ritchie, Peter A.; Luo, Yan; Lehnebach, Carlos A.

doi:10.1080/0028825x.2017.1418398

Cited by 10 publications

(6 citation statements)

References 52 publications

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“…Spiranthes sinensis (Orchidaceae) is a long-lived perennial herb with shallow roots whose historic range spans much of eastern and southern Asia north to Siberia and south to Australia. It was recently shown that the species may be better accepted in a broad sense as S. sinensis s.l., including many other taxa that segregated from the species such as Spiranthes australis and Spiranthes amoena, based on evidence from morphology and molecular data(Frericks, Munkacsi, Ritchie, Luo, & Lehnebach, 2018;Surveswaran, Gowda, & Sun, 2018;Tao et al, 2018).Spiranthes sinensis occurs in open habitats and its flowering time varies across broad climatic gradients. Individuals possess a single, terminal inflorescence with many spirally arranged flowers that typically flower for 25-40 days under cultivated conditions…”

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confidence: 99%

Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non‐humid regions

Song

et al. 2020

Functional Ecology

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Plant phenology was assessed as one of the most key Essential Biodiversity Variables on species functional traits, which underpins a variety of aspects of ecosystem function and is a vital determinant of species distribution. Flowering phenology is one of the most sensitive indicators of the effects of recent climatic change. Understanding of intraspecific variation in phenological responses to climate change can contribute to the accurate prediction of phenology and the assessment of potential impacts of climate change on organisms. However, this intraspecific variation in phenological sensitivity in natural systems is still unclear, especially at large spatial scales. Using the widespread perennial herb Spiranthes sinensis, we quantified intraspecific variation in phenological responses to warming among groups located along climatic gradients. Phenological data were derived from 1,681 collections of herbarium specimens and photographs across eastern Asia and southeastern Australia over the period 1902–2017 and spans eight humid and eight non‐humid regions. We found that peak flowering dates of Spiranthe sinensis (FLss) showed substantial intraspecific variation in temperature sensitivity, ranging from −5.16 ± 1.13 to 4.16 ± 0.90 days/°C. Across all 16 regions, FLss exhibited the strongest delayed response to warming in southeastern Australia. Temperature sensitivity of the FLss was significantly correlated with annual precipitation and aridity index of a region, suggesting a possible role of declined water availability in reducing temperature sensitivity. Notably, contrasting phenological responses to warming were found between collections with different humidity regimes: humid regions generally flowered earlier (M: −3.57 days/°C) and non‐humid regions exhibited slightly delayed flowering (M: 1.25 days/°C). These findings provide empirical evidence of substantial intraspecific variation in phenological sensitivity across large spatial scales, and highlights that soil water availability may play a key role in a warming planet, especially in non‐humid regions.

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confidence: 99%

Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non‐humid regions

Song

et al. 2020

Functional Ecology

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“…However, Ceratobasidiaceae are known to associate with Spiranthes in different geographical regions (e.g . S spiralis and S. novae‐zelandiae ; Frericks, Munkacsi, Ritchie, Luo, & Lehnebach, ; Tondello et al., ). Indeed, a recent study showed that this primer pair was able to detect a large number of Tulasnellaceae OTUs in typical rhizoctonia associated orchids ( Dactylorhiza fuchsii and D. incarnata ) (Jacquemyn, Waud, et al., ).…”

Section: Discussionmentioning

confidence: 99%

Latitudinal variation in mycorrhizal diversity associated with a European orchid

Duffy

Waud

Schatz

et al. 2019

Journal of Biogeography

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Aim Biodiversity is known to be unevenly distributed along latitudinal gradients. While this pattern has been observed for many different organisms, it is unclear whether the distributions of ecologically important belowground mutualists, such as orchid mycorrhizal fungi (OMF), also vary according to latitude. Location Europe. Taxon Spiranthes spiralis (L. Chevall) Orchidaceae. Methods We sampled 37 populations over a >3,000 km latitudinal gradient of the European orchid Spiranthes spiralis to test whether the diversity and community composition of OMF are influenced by latitude. For this, we sequenced the broad spectrum ITS3/4OF region to identify OMF and quantified environmental variables that may influence their occurrence. To assess whether seed germination was affected by suitable OMF in different regions, we performed a reciprocal translocation germination experiment at the northern, central and southern part of its range. Results In total, 75 OMF taxa were associated with S. spiralis, the majority belonging to the Ceratobasidiaceae and Thelephoraceae. Both taxonomic and phylogenetic OMF diversity decreased with increasing latitude. Three Ceratobasidiaceae taxa were widespread, but the number of sequences of two of these taxa decreased with increasing latitude. Reciprocal translocation germination experiments revealed that S. spiralis seeds germinated in each region regardless of seed provenance, but germination rates were highest in the southern part of its range where mycorrhizal diversity was highest. Main conclusions OMF diversity decreased with increasing latitude, indicating that communities of OMF may be shaped by latitudinal gradients. These results highlight the need to understand the factors that determine the distribution of belowground mutualists, which are essential to predict how plant distributions will shift under future environmental change.

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“…Notes: Delimitation of species within Spiranthes has been difficult to achieve due to widespread distributions, local variation, high phenotypic plasticity (Pierce & Cribb 2002;Chen et al 2009;Jones & Bates 2015;Pace & Cameron 2017;Tao et al 2018;Pace et al 2019) and hybridisation (Suetsugu et al (2020). Some species complexes are now being resolved using molecular data (Dueck et al 2014;Surveswaran et al 2017Surveswaran et al , 2018Frericks et al 2018;Fan & Huang 2019;Pace et al 2019). There has been particular confusion over the application of the name Spiranthes sinensis (Pers.)…”

Section: Monustesmentioning

confidence: 99%

“…Notes: In a recently published paper, Frericks et al (2018) highlighted the difficulties in determining the status and application of names in the S. sinensis complex. They revealed that significant molecular differentiation exist between plants collected and determined as this species from across the range from Nepal, China, Japan, Malaysia and Australia.…”

Section: Ecologymentioning

confidence: 99%

A revision of Orchidaceae from the Kimberley region of Western Australia with new species of tropical Calochilus and Dipodium

Barrett

Clements

2022

Telopea

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Orchidaceae occuring in the Kimberley region of Western Australia are revised. Calochilus barbarossa R.L.Barrett, M.D.Barrett & K.W.Dixon, Calochilus kimberleyensis R.L.Barrett, M.D.Barrett & M.A.Clem., Dipodium ammolithum M.D.Barrett, R.L.Barrett & K.W.Dixon and Dipodium basalticum M.D.Barrett, R.L.Barrett & K.W.Dixon are described and illustrated as new species from the Kimberley, one also occurring in the Northern Territory. The genera Empusa Lindl., Habenaria Willd. s. str., Phoringopsis D.L.Jones & M.A.Clem., Spiranthes Rich. and Zeuxine L. have been added to the Western Australian flora since publication of the Flora of the Kimberley Region. The taxonomic status of a number of tropical Australian Orchidaceae is discussed with recommendations for future research. Descriptions and illustrations are provided for twenty orchid species recorded in the Kimberley Region (one without a verified voucher). Keys are presented to all Kimberley orchid species.

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Phylogenetic affinities and in vitro seed germination of the threatened New Zealand orchid Spiranthes novae-zelandiae

Cited by 10 publications

References 52 publications

Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non‐humid regions

Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non‐humid regions

Latitudinal variation in mycorrhizal diversity associated with a European orchid

A revision of Orchidaceae from the Kimberley region of Western Australia with new species of tropical Calochilus and Dipodium

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