Evolution of leaf anatomy in arid environments – A case study in southern African Tetraena and Roepera (Zygophyllaceae)

Lauterbach, Maximilian; Merwe, Pieter de Wet van der; Keßler, Lisa; Pirie, Michael D.; Du, Baoheng; Kadereit, Gudrun

doi:10.1016/j.ympev.2016.01.002

Cited by 27 publications

(18 citation statements)

References 43 publications

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“…Besides such circumstantial evidence, Zygophyllaceae root nodules do contain rhizobia that are capable of nodulating legume species (Mostafa & Mahmoud, ; Mahmood & Athar ). Since all four nodulated genera of Zygophyllaceae are placed in different main clades of the family (Lauterbach et al., ; Sun et al., ), it is highly probable that the capacity to fix N is an ancestral trait. Remarkably, Zygophyllaceae falls outside the ‘N‐fixing clade’ of angiosperms (cf.…”

Section: Resultsmentioning

confidence: 99%

Global database of plants with root‐symbiotic nitrogen fixation: NodDB

Tedersoo

Laanisto

Rahimlou

et al. 2018

J Vegetation Science

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Plants associated with symbiotic N‐fixing bacteria play important roles in early successional, riparian and semi‐dry ecosystems. These so‐called N‐fixing plants are widely used for reclamation of disturbed vegetation and improvement of soil fertility in agroforestry. Yet, available information about plants that are capable of establishing nodulation is fragmented and somewhat outdated. This article introduces the NodDB database of N‐fixing plants based on morphological and phylogenetic evidence (available at https://doi.org/10.15156/bio/587469) and discusses plant groups with conflicting reports and interpretation, such as certain legume clades and the Zygophyllaceae family. During angiosperm evolution, N‐fixing plants became common in the fabid rather than in the ‘nitrogen‐fixing’ clade. The global GBIF plant species distribution data indicated that N‐fixing plants tend to be relatively more diverse in savanna and semi‐desert biomes. The compiled and re‐interpreted information about N‐fixing plants enables accurate analyses of biogeography and community ecology of biological N fixation.

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Section: Resultsmentioning

confidence: 99%

Global database of plants with root‐symbiotic nitrogen fixation: NodDB

Tedersoo

Laanisto

Rahimlou

et al. 2018

J Vegetation Science

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“…Tetraena mongolica Maxim is a member of the broader genus Tetraena in the subfamily Zygophyllaceae ( Beier, Chase & Thulin, 2003 ; Lauterbach et al, 2016 ), and is endemic to western Inner Mongolia around the Yellow River basin, and is nationally endangered in China ( Fu, 1992 ; Xu et al, 1998 ; Zhang & Yang, 2000 ). Its distribution is restricted to the western Gobi, the largest desert in Asia, and one characterized by extremely low annual rainfall ( Xu et al, 1998 ; Zhang & Yang, 2000 ), where T. mongolica is able to survive because of its extensive root system, and acts as a windbreak and soil stabilizer ( Dong & Zhang, 2001 ; Zhang et al, 2003 ).…”

Section: Introductionmentioning

confidence: 99%

How much genetic variation is stored in the endangered and fragmented shrubTetraena mongolicaMaxim?

Zhi

Sun

et al. 2018

PeerJ

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Tetraena mongolica Maxim (Zygophyllaceae) is an endangered species endemic to western Inner Mongolia and China, and is currently threatened by habitat loss and human over-exploitation. We explored the genetic background, its genetic diversity, population structure, and demographic history, based on 12 polymorphic nuclear microsatellite loci. Our results indicated high genetic diversity in extant populations, but no distinguishable gene cluster corresponding with a specific biogeography. Population demography analysis using a MSVAR indicated a strong, recent population decline approximately 5,455 years ago. These results suggest that the Yellow River and Zhuozi Mountain range may not prevent pollination between populations. Finally, we surmised that the population demography of T. mongolica was likely to have been affected by early mankind activities.

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“…The leaf is the main organ for assimilation and transpiration and is also the most stress sensitive organ. It is thus of great significance to study the stress resistance of plants by examining leaf anatomical structure 17,18 . Research on leaf anatomical structure has largely focused on the epidermis, mesophyll, and veins 19,20 .…”

Section: Discussionmentioning

confidence: 99%

Leaf structure and seed histochemistry analyses provided structural insights into the improved yield and quality of tree peony seed under light shading conditions

Han

Mei

et al. 2020

Sci Rep

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in biology, structure is the basis of function. for plants, changes in their physiological and ecological functions are usually caused by structural changes. to understand how shading conditions change the plant structures, thereby providing structural insights into the improved yield and quality, oilseed tree peony were shaded with different densities of polyethylene nets from 28 days after pollination (DAP) until harvesting. The thickness of the leaf (LT), vein (VT), upper epidermis (UET), lower epidermis (LET), palisade tissue (PT), sponge tissue (ST), as well as the accumulation and distribution of starch, protein, and fat, were observed at 14-day intervals. The results showed that shading had a significant effect on the anatomical structure of the leaves. In the rapid growth period (before 70 DAP), the LT, ET, and VT under shading were significantly lower than under non-shading. During this period, the accumulation of starch and protein under shading was lower than that under non-shading. At the maturation period (99-112 DAP), the LT and PT under shading were higher than under non-shading, indicating that light shading delayed leaf senescence and increased photosynthetic capacity. Shading delayed the degradation of the integument cells and prolonged seed development and nutrient accumulation.Tree peony (Paeonia section Moutan DC.) is indigenous to China, and its wild germplasms are mainly distributed in mountainous shrublands and secondary broad-leafed forests in the provinces of Henan, Gansu, and Shanxi 1 . In the transplantation process of oilseed tree peony from mountainous shrublands to the field, their leaves usually turn yellow, senescence prematurely, or even fall off due to the high light intensity and temperature, which seriously reduces the yield and quality of the tree peony seeds 2 . Shading is the preferred method for providing a suitable environment during the growth period since high light intensity and temperature are detrimental to ornamenta shrubs growth 3 . For example, when kiwi fruit plants were shaded, the canopy microclimate was significantly optimized, the temperature was lowered, and the humidity was increased, which effectively alleviated the physiological stress of the leaves and fruits and reduced the fallen fruit 4 . Under shading, Trollius chinensis Bunge grew relatively better and exhibited an extended viewing life 5 .Light is a primary factor of the physical environment. Shading changes the microenvironment, which consequently alters leaf physiological characteristics 6 as well as leaf structure 7-9 . Shading increases leaf area and reduces leaf thickness 7 and reduces palisade tissue and stomatal density 8 . It also increases the intercellular space between the palisade tissue and spongy tissue, as well as the numbers of vascular bundles 5 . Shading has also been found to reduce the palisade tissue thickness, stomatal density, and the ratio of palisade tissue to sponge tissue 10 . Shading www.nature.com/scientificreports www.nature.com/scientificreports/ than that under non-s...

show abstract

Evolution of leaf anatomy in arid environments – A case study in southern African Tetraena and Roepera (Zygophyllaceae)

Cited by 27 publications

References 43 publications

Global database of plants with root‐symbiotic nitrogen fixation: NodDB

Global database of plants with root‐symbiotic nitrogen fixation: NodDB

How much genetic variation is stored in the endangered and fragmented shrubTetraena mongolicaMaxim?

Leaf structure and seed histochemistry analyses provided structural insights into the improved yield and quality of tree peony seed under light shading conditions

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