Ecological Studies of Funaria hygrometrica Hedw. in Eastern Washington and Northern Idaho

Hoffman, George R.

doi:10.2307/1942153

Cited by 36 publications

(11 citation statements)

References 55 publications

(93 reference statements)

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“…These controls can comprise nutrients, pH, photoperiod and exogenous substances (Grime et al, 1981;Hölzel and Otte, 2004;Glime, 2007). For instance, the weed moss species Funaria hygrometrica is known to show better spore germination and protonemal growth on soil from burned areas, which are phosphate-nitrate enriched (Hoffman, 1966;Esposito et al, 1999). Nitrate is the major naturally occurring inorganic soil component that stimulates seed and fern spore germination (Hilhorst and Karssen, 1992).…”

Section: Discussionmentioning

confidence: 99%

Effects of light and nutrients on different germination phases of the Cosmopolitan moss Bryum argenteum Hedw. (Bryaceae)

Silva

Pôrto

Simabukuro

2010

Braz. arch. biol. technol.

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The influence of light and nutrients on the different germination phases of Bryum argenteum spores was studied. The following treatments were used: distilled water and nutrient solution under light (12 h) and continuous darkness. The spores germinated when exposed to light, independent of both medium used. Under darkness, the spores swelled and became chlorophyllous. In the presence of nutrient solution, the germination occurred earlier (after two days) when compared to the distilled water (after more than three days).Nutrients were needed to complete the last germination phase in the majority of spores and to provide the protonemal growth.

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Section: Discussionmentioning

confidence: 99%

Effects of light and nutrients on different germination phases of the Cosmopolitan moss Bryum argenteum Hedw. (Bryaceae)

Silva

Pôrto

Simabukuro

2010

Braz. arch. biol. technol.

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“…Some researchers have suggested that inoculation material should be mass-produced by vegetative regeneration with rapid development (Jones and Rosentreter, 2006;Mishler, 1988) because of the need for moss biocrusts to inoculate large areas. The factors that influence the tissue cultivation of mosses have been investigated for many years (Duckett et al, 2004;Hoffman, 1966;Sabovljevic et al, 2003); however, the mechanism of moss regeneration remains unclear.…”

Section: Y Guo and Y Zhao: Effects Of Storage Temperature On Desiccmentioning

confidence: 99%

“…The * symbol indicates a significant correlation at P < 0.05; * * indicates a significant correlation at P < 0.01. For more than a century, researchers have studied many aspects of mosses, such as inocula, pretreatment (e.g., storage and sterilization), culture methods, and culture conditions (Duckett et al, 2004;Hoffman, 1966). Some of these studies have implied that the physiological characteristics of moss gametophytes are closely related to the success of artificial cultivation; for example, pretreatment with sucrose and/or abscisic acid can improve the viability of mosses by increasing DT (Burch and Wilkinson, 2002).…”

Section: Relationships Between Physiological Characteristics and The mentioning

confidence: 99%

Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses

Yue-wei

Zhao

2018

Biogeosciences

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Abstract. Mosses, as major components of later successional biological soil crusts (biocrusts), play many critical roles in arid and semiarid ecosystems. Recently, some species of desiccation-tolerant mosses have been artificially cultured with the aim of accelerating the recovery of biocrusts. Revealing the factors that influence the vegetative propagation of mosses, which is an important reproductive mode of mosses in dry habitats, will benefit the restoration of moss crusts. In this study, three air-dried desiccationtolerant mosses (Barbula unguiculata, Didymodon vinealis, and Didymodon tectorum) were hermetically sealed and stored at five temperature levels (0, 4, 17, 25, and 30 • C) for 40 days. Then, the vegetative propagation and physiological characteristics of the three mosses were investigated to determine the influence of storage temperature on the vegetative propagation of desiccation-tolerant mosses and the mechanism. The results showed that the vegetative propagation of the three mosses varied with temperature. The most variation in vegetative propagation among storage temperatures was observed in D. tectorum, followed by the variation observed in B. unguiculata. In contrast, no significant difference in propagation among temperatures was found in D. vinealis. The regenerative capacity of the three mosses increased with increasing temperature from 0 to 17 • C, accompanied by a decrease in malondialdehyde (MDA) content, and decreased thereafter. As the temperature increased, the chlorophyll and soluble protein contents increased in B. unguiculata but decreased in D. vinealis and D. tectorum. As to storage, the MDA and soluble sugar contents increased after storage. The MDA content of the three mosses increased at each of the investigated temperatures by more than 50 % from the initial values, and the soluble sugar content became higher than before in the three mosses. The integrity of cells and cell membranes is likely the most important factor influencing the vegetative propagation of desiccation-tolerant mosses. A 40-day storage period caused cell injury. Our results suggest that storage temperature can enhance or suppress such injury and change the regenerative capacity of the three mosses. The data indicate that the suitable storage temperature is 4 • C for B. unguiculata and 17 • C for both D. vinealis and D. tectorum.

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“…Thus, some researchers suggest artificially culturing moss biocrusts on degraded soil surfaces to accelerate the recovery of degraded arid and semiarid ecosystems (Belnap and Eldridge, 2003;Zhao et al, 2016). Recently, some mosses have been investigated by culturing gametophytes (Jones and Rosentreter, 2006;Xiao et al, 2015). However, cultivation research on moss crusts remains tentative, potentially due to the lack of knowledge regarding the vegetative propagation of mosses.…”

Section: Introductionmentioning

confidence: 99%

Effects of storage temperature on physiological characteristics and vegetative propagation of desiccation-tolerant mosses

Guo¹,

Zhao²

2017

Preprint

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Mosses, as major components of later successional biological soil crusts (biocrusts), play many critical roles in arid and semiarid ecosystems. Recently, some species of desiccation-tolerant mosses have been artificially cultured with the aim of accelerating the recovery of biocrusts. Revealing the factors that influence the vegetative propagation of mosses, which is an important reproductive mode of mosses in dry habitats, will benefit the restoration of moss crusts. In this study, three air-dried desiccationtolerant mosses (Barbula unguiculata, Didymodon vinealis, and Didymodon tectorum) were hermetically sealed and stored at five temperature levels (0, 4, 17, 25, and 30 • C) for 40 days. Then, the vegetative propagation and physiological characteristics of the three mosses were investigated to determine the influence of storage temperature on the vegetative propagation of desiccation-tolerant mosses and the mechanism. The results showed that the vegetative propagation of the three mosses varied with temperature. The most variation in vegetative propagation among storage temperatures was observed in D. tectorum, followed by the variation observed in B. unguiculata. In contrast, no significant difference in propagation among temperatures was found in D. vinealis. The regenerative capacity of the three mosses increased with increasing temperature from 0 to 17 • C, accompanied by a decrease in malondialdehyde (MDA) content, and decreased thereafter. As the temperature increased, the chlorophyll and soluble protein contents increased in B. unguiculata but decreased in D. vinealis and D. tectorum. As to storage, the MDA and soluble sugar contents increased after storage. The MDA content of the three mosses increased at each of the investigated temperatures by more than 50 % from the initial values, and the soluble sugar content became higher than before in the three mosses. The integrity of cells and cell membranes is likely the most important factor influencing the vegetative propagation of desiccation-tolerant mosses. A 40-day storage period caused cell injury. Our results suggest that storage temperature can enhance or suppress such injury and change the regenerative capacity of the three mosses. The data indicate that the suitable storage temperature is 4 • C for B. unguiculata and 17 • C for both D. vinealis and D. tectorum.

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Ecological Studies of Funaria hygrometrica Hedw. in Eastern Washington and Northern Idaho

Abstract: Fra. 1. Funaria in relation to the vascular vegetation. Solid dots = locations where the plant was collected. Circle = location of nursery where experiments were carried out. X 's = locations where observations were made on burned areas. Vegetation zone data from Daubenmire (1942, 1952).

Cited by 36 publications

References 55 publications

Effects of light and nutrients on different germination phases of the Cosmopolitan moss Bryum argenteum Hedw. (Bryaceae)

Effects of light and nutrients on different germination phases of the Cosmopolitan moss Bryum argenteum Hedw. (Bryaceae)

Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses

Effects of storage temperature on physiological characteristics and vegetative propagation of desiccation-tolerant mosses

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