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Leaf anatomical structures of Paphiopedilum and Cypripedium and their adaptive significance
- Z. Guan, Shi-Bao Zhang, K. Guan, Shuyun Li, Hong Hu
- Biology, MedicineJournal of Plant Research
- 1 March 2011
The present results contribute to the understanding of the divergent adaptation of leaf traits in slipper orchids, which is beneficial for the conservation of endangeredOrchids.
Effects of Light, Scarification, and Gibberellic Acid on Seed Germination of Eight Pedicularis Species from Yunnan, China
For many species, scarification was effective to promote seed germination, but neither 100 nor 500 mg center dot L-1 GA(3) had consistent promoting effects, and Wet-habitat species generally had positive photoblastic responses.
Floral traits, pollination ecology and breeding system of three Clematis species (Ranunculaceae) in Yunnan province, southwestern China
The levels of inbreeding depression are negatively associated with autonomous self-pollination in C. akebioides and C. rehderiana, and pollen limitation in reproduction of the three Clematis species are discussed.
Karyomorphology of Incarvillea (Bignoniaceae) and its implications in distribution and taxonomy
According to this study of karyomorphology, morphological characteristics and geographical distribution, it seems that the three subgenera of the genus Incarvillea should be regarded as three independent genera.
Effects of drought stress on the seed germination and early seedling growth of the endemic desert plant Eremosparton songoricum (Fabaceae)
- Haiyan Li, Xiaoshuang Li, Daoyuan Zhang, Huiliang Liu, K. Guan
- Biology, MedicineEXCLI journal
- 4 February 2013
Drought stress can suppress and delay the germination of E. songoricum and the seeds accumulate osmolytes and augment the activity of antioxidative enzymes to cope with drought injury, and it is demonstrated that 2 h may be a key response time point for E.songoricum to resist drought stress.
Molecular phylogeny of Incarvillea (Bignoniaceae) based on ITS and trnL-F sequences.
- Shaotian Chen, K. Guan, Zhe-kun Zhou, R. Olmstead, Q. Cronk
- Biology, MedicineAmerican journal of botany
- 1 April 2005
Maximum parsimony analysis using ITS and trnL-F sequences resulted in similar trees and showed that the genus Incarvillea is monophyletic, and all four subgenera are well supported for monophyly.
Genetic structure and phylogeography of a relict tree fern, Sphaeropteris brunoniana (Cyatheaceae) from China and Laos inferred from cpDNA sequence variations: Implications for conservation
Based on the distribution pattern of haplotypes and the nested clade analysis results, the Yunnan region potentially had several refugia of this species during glacial periods, whereas the Hainan populations were probable new colonizations.
Nutrient requirements differ in two Pedicularis species in the absence of a host plant: implication for driving forces in the evolution of host preference of root hemiparasitic plants.
- Ai-Rong Li, Yun-Ju Li, Sally E. Smith, F. A. Smith, K. Guan
- Biology, MedicineAnnals of botany
- 1 October 2013
Distinct interspecific traits in growth and nutrient requirements can be driving forces for the differential interactions between hemiparasites and their hosts.
Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region
- Wenjun Li, Xiaolin Sui, P. Kuss, Yanyan Liu, Ai-Rong Li, K. Guan
- Biology, MedicinePloS one
- 2 November 2016
It is concluded that P. kansuensis colonized the TSR after the LGM, and the improbable long-distance dispersal by wind or water across arid land seed flow may well have had birds or men as vector.
Molecular phylogeny of the subgenus Ceratotropis (genus Vigna, Leguminosae) reveals three eco-geographical groups and Late Pliocene-Pleistocene diversification: evidence from four plastid DNA region…
- F. Javadi, Ye Tun Tun, M. Kawase, K. Guan, H. Yamaguchi
- Medicine, BiologyAnnals of botany
- 1 August 2011
The phylogenetic results indicate that the epigeal germination is plesiomorphic, and the germination type evolved independently multiple times in this subgenus Ceratotropis, implying its limited taxonomic utility.