Protogynous, pollen limitation and low seed production reasoned for the dieback of Spartina anglica in coastal China

Li, Hongli; An, Shuqing; Zhi, Yingbiao; Chao, Yan; Zhao, Lei; Zhou, Chi; Deng, Ziqing; Wang, Su; Liu, Yuhong

doi:10.1016/j.plantsci.2007.11.015

Cited by 18 publications

(16 citation statements)

References 72 publications

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“…Normally, in self-incompatible and selfcompatible plants, the index of self-incompatibility is greater than 80% and less than 50%, respectively 37 . In self-incompatible plants, self-pollination lowered the seed-setting rate 16 whereas cross-pollinated plants gave a higher fruit setting rate 35,36,38,39 . Manual selfpollination did not increase the seed-setting rate due to inbreeding depression 36,39,40 .…”

Section: Self-incompatibility Testmentioning

confidence: 97%

“…Either insufficient or ineffective pollinators lower the number of pollen grains on the stigma 16,26 . Seed set is limited by the pollen shortage 28 .…”

Section: Fully Developed Seed Stunted Seedmentioning

confidence: 99%

“…Self-incompatibility is caused by the interaction between pollen and stigma containing a similar genetic pattern; this is a mechanism that prevents inbreeding in plants 10,11 . The mechanism often coexists with protogyny, where the stigma develops faster than the anther, or with protandry, where the anther develops faster than the stigma [12][13][14][15][16] . This sequential hermaphroditism of dichogamous type of flower ensures that the stigma receives pollen from other flowers rather than its own.…”

Section: Introductionmentioning

confidence: 99%

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Pollen viability, germination, and seed setting of Nelumbo nucifera

Khatfan¹,

Zuo²,

Chen³

et al. 2014

ScienceAsia

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In tropical countries, low seed setting is a major problem when cultivating lotus (Nelumbo nucifera Gaertn.). This study determined seed setting in six wild lotus cultivars: Sai Rung (SR), Sam Roi Yot (SY), Klong Yong, Puttha Monthon (PM), Rachine (RC), and Nakhon Sawan (NW). In nature, the seed-setting rates range from 52-78%. From a stigma removal study, only a 53% seed-setting rate by self-pollination was recorded in the SR cultivar. This result was similar to the seed setting of self-pollinated PM, although high viability of PM pollen from day 2 full bloom flowers was observed. Self-incompatibility was studied in RC and NW cultivars. The indices of self-incompatibility of RC and NW were both 96% indicating that self-incompatibly affects low seed setting in these two cultivars. The results showed that the low seed-setting rate also came from seed abortion. A high value of self-incompatibility was observed in RC and NW cultivars, but not in the other cultivars studied.

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Section: Self-incompatibility Testmentioning

confidence: 97%

“…Either insufficient or ineffective pollinators lower the number of pollen grains on the stigma 16,26 . Seed set is limited by the pollen shortage 28 .…”

Section: Fully Developed Seed Stunted Seedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pollen viability, germination, and seed setting of Nelumbo nucifera

Khatfan¹,

Zuo²,

Chen³

et al. 2014

ScienceAsia

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“…However, seed production can vary greatly over time (Chung 1993). In the Chinese population, little viable seed has occurred since the mid 1990s , which is probably due to poor pollen quality and abnormal pollen tube development (Li et al 2008 August, 2006. The plants were transplanted to big pots (80 cm in length, 76 cm in width, and 50 cm in height) in the greenhouse to prevent desiccation.…”

Section: Plant Materialsmentioning

confidence: 99%

Phenotypic responses of Spartina anglica to duration of tidal immersion

Lei

Zhi

et al. 2010

Ecological Research

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Although Spartina anglica C.E. Hubbard continues to be invasive in many countries, this species has experienced a drastic decline in coastal China over the last decade. We hypothesize that changes in the duration of tidal immersion were responsible for this decline because the elevation of the S. anglica-dominated area in coastal China has increased greatly over the last decade. We examined the effects of the duration of simulated tidal immersion and plant material provenance on growth, asexual reproduction, biomass accumulation, and allocation (percent of above-ground biomass to total biomass) of S. anglica in a greenhouse experiment. The provenance of S. anglica did not significantly affect any traits measured except for height, stalk diameter, and leaf area. However, all traits were affected by the duration of immersion. Plants grown under 6 h of immersion were taller and had more leaves, more roots, and larger leaf area than those under 2, 4, 8, and 10 h of immersion. Asexual traits and biomass of the plants grown under 6 h of immersion were significantly larger than those under other immersion durations. The results suggested that S. anglica benefits from tidal immersion and decreasing duration of tidal immersion may have resulted in the decline of the S. anglica populations in coastal China. Thus, controlling the duration of tidal immersion may be an effective way of controlling invasiveness of this species elsewhere in the world.

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“…The results indicate that changes in sediment properties and subsequent changes in burial depth for S. anglica may assist with management of its populations over the species range. (Pezeshki et al, 1992;Perumal & Maun, 2006;Maun, 2011 群的自然衰退 (Li et al, , 2009(Li et al, , 2011(Li et al, , 2014a …”

mentioning

confidence: 99%