Male Populus cathayana than female shows higher photosynthesis and less cellular injury through ABA-induced manganese transporting inhibition under high manganese condition

Chen, Fugui; Shen, Juan; Dou, Min; Ke, Lixia; Tian, Xin; Korpelainen, Helena; Li, Chunyang

doi:10.1007/s00468-017-1628-1

Cited by 12 publications

(9 citation statements)

References 52 publications

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“…Chen et al found that male P . cathayana showed higher photosynthesis and less cellular injury than females under high manganese condition 34 . Han et al suggested that P .…”

Section: Discussionmentioning

confidence: 89%

“…Besides, different gender characteristics and function counted: the gender difference is determined by different reproductive costs: female plants must provide more to reproduce 20 . That why females grew better under WW conditions, but much worse under WS condition than males in terms of growth indexes, which also indicated that female plants were potentially more sensitive to environmental stress, even with AM formation 34 , 35 .…”

Section: Discussionmentioning

confidence: 93%

“…The improvement was caused by the direct www.nature.com/scientificreports/ and indirect improvements of the plant water status by AM formation. Besides, different gender characteristics and function counted: the gender difference is determined by different reproductive costs: female plants must provide more to reproduce 20. That why females grew better under WW conditions, but much worse under WS condition than males in terms of growth indexes, which also indicated that female plants were potentially more sensitive to environmental stress, even with AM formation 34,35 . In nature, males and females of dioecious plants differed on several levels, such as morphology, physiology and biochemistry.…”

Section: Discussionmentioning

confidence: 94%

“…In recent years, with the deteriorating environment, the gender ratios of many dioecious plants have become imbalanced. Chen et al found that male P. cathayana showed higher photosynthesis and less cellular injury than females under high manganese condition 34 . Han et al suggested that P. cathayana showed gender differences under drought stress, while reciprocal grafting could alleviate negative effects by gender 35 .…”

Section: Discussionmentioning

confidence: 99%

“…cathayana showed gender differences under drought stress, while reciprocal grafting could alleviate negative effects by gender 35 . Most reports have shown that, in the face of environmental stresses, male plants perform better than female ones not only under abiotic stresses, such as drought, salt and UV stress, but also under biotic stresses 21 , 22 , 34 , 35 .…”

Section: Discussionmentioning

confidence: 99%

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Gender-related responses of dioecious plant Populus cathayana to AMF, drought and planting pattern

Zhen

Liu

et al. 2020

Sci Rep

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in our previous studies, we detected drought, gender and arbuscular mycorrhizal (AM) inoculation effects on dioecious plant. Based on this, we investigated the intra-and inter-sexual competition between male and female plants. Dioecious plant Populus cathayana was used and we set 3 factors in this experiment: (1) AM inoculation/non-inoculation; (2) well-watered/water-stressed; (3) singlegender pattern (only 4 males or 4 females)/mixed-gender pattern (2 males and 2 females). Growth (stem length, ground diameter, SPAD, mean leaf area, biomass accumulation) and nutrition (C, N, P, K, Ca and Mg) distribution of male and female seedlings were determined. Results Drought significantly limited plant growth and nutrition accumulation, especially in female plants; AM formation alleviated this negative effect, especially in male plants. However, the gender effect was complicated. A mixedgender planting pattern relieved intra-competition in terms of the growth and nutrient accumulation of both genders and even alleviated the negative effects caused by drought. In the mixed-gender pattern, the differences of C, N, P, K and Ca contents between male and female plants with AM inoculation was smaller than those without AM inoculation, which indicated a potential role for AM fungi in nutrient transport. Males had a stronger physiological response to limited water availability, and more advantages from AM formation than females. Mixed-gender planting relieved the existence of intra-sexual competition of dioecious plants, and AM symbiosis alleviated the differences between genders. Forests cover 30% of the world's land surface and are relied on by human societies. However, land use by our expanding human population and economic decisions are rapidly and directly transforming forested ecosystems 1. With increasingly higher global temperature, which is now widely acknowledged because of increasing emissions of greenhouse gases, significant drying is occurring widely around the world 2,3. The impacts of climate change have both positive and negative sides. However, increases in water use efficiency, growth from higher CO 2 levels, and the growing season suggest positive effects of future climate change on forests. The changing climate induces stress and changes the dynamics of forest insects and pathogens, which reduce tree growth and increase mortality 4,5. Afforestation is a well-accepted method for ecological restoration in arid areas 6 , and poplar is a widely cultivated forest tree with high economic value, especially in the energy and papermaking industries 7,8. Populus cathayana, a typical dioecious plant, is an ecologically important species in Qinghai Province, China, a severely ecologically degraded area. Despite decades of studies within the fields of forestry, plant pathology and entomology, the fundamental mechanisms of tree survival and mortality during drought remain poorly understood 9-11. Most terrestrial plants can establish symbiosis with arbuscular mycorrhizal (AM) fungi, which is widespread, and has been suggested...

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“…Chen et al found that male P . cathayana showed higher photosynthesis and less cellular injury than females under high manganese condition 34 . Han et al suggested that P .…”

Section: Discussionmentioning

confidence: 89%