Stimulatory effect of aluminum on the growth of tea pollen tubes

Yokota, Hiromi; Takamura, Ikuyo; Ishikawa, Fumiko; Ohta, Miwako; Konishi, Shota

doi:10.1080/00380768.1997.10414770

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…However, Al also has been suggested to have beneficial effects for some plant species that are well adapted to growth on highly acidic soils (Pilon-Smits et al 2009;Metali et al 2012). The beneficial effects of Al on tea plant growth has been documented for decades; however, the underlying mechanisms had not been investigated in any detail (Chenery 1955;Konishi et al 1985;Yokotal et al 1997;Mukhopadyay et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Aluminium is essential for root growth and development of tea plants (Camellia sinensis)

Sun

Zhang

Liu

et al. 2020

JIPB

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On acid soils, the trivalent aluminium ion (Al 3+ ) predominates and is very rhizotoxic to most plant species. For some native plant species adapted to acid soils including tea ( Camellia sinensis ), Al 3+ has been regarded as a beneficial mineral element. In this study, we discovered that Al 3+ is actually essential for tea root growth and development in all the tested varieties. Aluminum ion promoted new root growth in five representative tea varieties with dose‐dependent responses to Al 3+ availability. In the absence of Al 3+ , the tea plants failed to generate new roots, and the root tips were damaged within 1 d of Al deprivation. Structural analysis of root tips demonstrated that Al was required for root meristem development and activity. In situ morin staining of Al 3+ in roots revealed that Al mainly localized to nuclei in root meristem cells, but then gradually moved to the cytosol when Al 3+ was subsequently withdrawn. This movement of Al 3+ from nuclei to cytosols was accompanied by exacerbated DNA damage, which suggests that the nuclear‐targeted Al primarily acts to maintain DNA integrity. Taken together, these results provide novel evidence that Al 3+ is essential for root growth in tea plants through maintenance of DNA integrity in meristematic cells.

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Section: Discussionmentioning

confidence: 99%

Aluminium is essential for root growth and development of tea plants (Camellia sinensis)

Sun

Zhang

Liu

et al. 2020

JIPB

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“…In the present study, callose content was used for the estimation of pollen tube growth. Yokota et al (1997) reported that optimal pH for tea pollen growth was 4.8. At this pH, tea pollen tubes grew normally without P and Zn addition.…”

Section: Resultsmentioning

confidence: 99%

Effect of phosphorus on zinc toxicity in tea pollen tube growth

Lian

Yokota

Wang

et al. 1998

Soil Science and Plant Nutrition

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“…However, it is interesting to note that stimulatory effects of Al on the growth of plants have also been reported in some studies (Chenery 1955;Konishi et al 1985;Huang and Bachelard 1993;Osaki et al 1997). In tea plant (Camellia sinensis L.) a stimulatory effect of Al on the growth was also demonstrated in some experiments, using intact plant (Chenery 1955;Konishi et al 1985), cultured roots (Tsuji et al 1994), and pollen tubes (Yokota et al 1997). The growth of tea roots was typically more stimulated than that of shoots by Al (Konishi et al 1985).…”

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confidence: 95%

“…The growth of tea roots was typically more stimulated than that of shoots by Al (Konishi et al 1985). It was assumed that Al effects might be due to the amelioration of phosphorus absorption (Konishi et al 1985), secretion of malic acid from roots to dissolve aluminum phosphate in the rhizosphere (Jayman and Sivasubramaniam 1975), stimulation of growth of microorganisms on the root surface (Konishi 1990) or replacement of some functions of boron (Konishi 1992;Yokota et al 1997). However, the stimulatory effects of Al on tea plant growth have not yet been el ucidated.…”

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confidence: 99%