Studies on the Floral Histogenesis and Physiology of Perilla. Iii. Effects of Indoleacetic Acid on the Flowering of Apical Buds and Explants in Culture

Raghavan, V.

doi:10.1002/j.1537-2197.1961.tb11724.x

Cited by 10 publications

(1 citation statement)

References 12 publications

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“…3). This difference in response to LDs 16 h or longer explains adequately the differences previously reported from the culture in LD of shoot-tips of red Perilla (2) as contrasted to green Perilla (10,11). The relative ineffectiveness of LB, even of 2-h full lights, in substituting for LD in P.frutescens explains my recent preliminary results (unpublished) with cultures of shoot-tips in LB, as contrasted to our earlier LD data (1 1).…”

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confidence: 84%

Comparison of Photoperiodic Sensitivity of Green-Leafed and Red-Leafed Perilla

Jacobs¹

1982

Plant Physiol.

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MATERIALS AND METHODSThe flowering responses of Periga frutescens (L.) Britt. (green-leafed Perilla) and P. crispa (Thunb.) Tanaka (red-leafed Perilla) to different 24-hour photopenodic regimes were compared quantitatively. Although both taxa are short-day plants, P We have reported results with a green-leafed Perilla (6, 10, 11); and we also have had difficulties comparing our results with those of others who used 'red Perilla' (e.g. Ref.2). In preliminary experiments (unpublished), I found that LBs did not block flowering of green Perilla shoot-tips in culture nearly as well as LD did for Raghavan and Jacobs (1 1).This paper investigates the flowering responses of these two species of Perilla, with the aim of clarifying the literature, exploring the relative effectiveness of LB as contrasted to LD in preventing flowering in P. frutescens, and in laying quantitative groundwork for further research on the physiology of flowering in Perilla and other Labiatae.'In memory of William Hillman, among whose many papers on flowering were some on flowering of Coleus, another member of the Labiatae.

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confidence: 84%

Comparison of Photoperiodic Sensitivity of Green-Leafed and Red-Leafed Perilla

Jacobs¹

1982

Plant Physiol.

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In VitroFlowering

Scorza

1982

Horticultural Reviews

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Studies on the Floral Histogenesis and Physiology of Perilla. Ii. Floral Induction in Cultured Apical Buds of P. Frutescens

Raghavan

Jacobs

1961

American J of Botany

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Raghavan, V., and W. P. Jacobs. (Princeton U., Princeton, N. J.) Studies on the floral histogenesis and physiology of Perilla. II. Floral induction in cultured apical buds of P. frutescens. Amer. Jour. Bot. 48(9): 751–760. Illus. 1961.—The morphological and histological changes induced in apical buds and explants of P. frutescens (L.) Britt. var. ‘Tall Late’ in short days and long days when cultured in White's medium have been followed. When photoinduced in culture, apical buds showed visible signs of changes in 30.9 days, and produced normal flowers in 81.6 days. Apical buds in LD showed similar transformations at the apices, but with continued LD treatment, they elongated to form sterile structures, superficially resembling Selaginella cones. The normal flowers formed in culture were similar to those formed on the intact plant, while the individual florets of the LD‐cone differentiated only the non‐sporogenous tissues in them. A less pronounced sequence of changes resulted when apical buds stripped of their older pairs of apical leaves were LD‐ or SD‐treated. When explants with the 1st pair of unfolded leaves or with the 1st and 2nd pairs of unfolded leaves were photoinduced in vitro, the responses were relatively fast. However, explants with the 1st and 2nd pairs of unfolded leaves in LD remained entirely vegetative. When unfolded leaves were implanted in the same medium separated from the buds and both were photoinduced or given LD, the buds formed the typical 1st signs, but did not differentiate into normal flowers. This inhibition of flowering resulted in the formation of sterile cones, consisting of florets with non‐sporogenous tissues only. The results have suggested the possibility of the sterile cone‐like structures being an intermediate stage in the flowering of Perilla. The role of a possible inhibitor produced by mature leaves of SD plants in LD is discussed.

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Studies on the Floral Histogenesis and Physiology of Perilla. Iii. Effects of Indoleacetic Acid on the Flowering of Apical Buds and Explants in Culture

Cited by 10 publications

References 12 publications

Comparison of Photoperiodic Sensitivity of Green-Leafed and Red-Leafed Perilla

Comparison of Photoperiodic Sensitivity of Green-Leafed and Red-Leafed Perilla

In VitroFlowering

Studies on the Floral Histogenesis and Physiology of Perilla. Ii. Floral Induction in Cultured Apical Buds of P. Frutescens

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