Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F&lt;sub&gt;1&lt;/sub&gt; Hybrids Grown Under Moderate Chilling Stress

Kutík, J.; Holá, D.; Kočová, M.; Rothová, Olga; Haisel, D.; Wilhelmová, N.; Tichá, Ingrid

doi:10.1023/b:phot.0000046165.15048.a4

Cited by 39 publications

(39 citation statements)

References 27 publications

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“…Ultrastructure of maize chloroplast types has often been studied with regard to main photosynthetic activities (Pechová et al 2003, Kutík et al 2004; we reported the differences in chloroplast ultrastucture of barley and maize (Hong et al 2004). In the present work, we found as a special feature of leaf anatomy in A. tricolor that individual BS consists of two layers of BSCs called the outer and inner BSCs, and one layer of MSCs in contact with the outer BSC (Fig.…”

Section: Discussionmentioning

confidence: 57%

Leaf anatomy, chloroplast ultrastructure, and cellular localisation of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) and RuBPCO activase in Amaranthus tricolor L.

Hong¹,

Jiang²,

Weng³

et al. 2005

Photosynt.

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In Amaranthus tricolor the leaf structure included three layers of chlorenchyma on the vascular bundle periphery, namely, mesophyll cells (MSCs) with few chloroplasts, outer larger round bundle sheath cells (BSCs) with many chloroplasts in a centripetal position, and inner smaller BSCs with few chloroplasts around the vascular bundle cells. The ultra-thin sections showed that BSCs had abundant organelles, namely many large and round mitochondria with well-developed cristae in the cytoplasm. The chloroplasts in the BSCs were lens-like bodies, which seemed to be oval on cross sections. Granal and intergranal thylakoids were usually distinguished. Grana were stacked in parallel with prevailing plane of thylakoid lamellae. The chloroplasts in the MSCs appeared smaller than those in the BSCs and contained less stacked thylakoids but abundant peripheral reticulum. The ultra-thin sections of immunogold-labelled anti-ribulose-1,5-bisphosphate carboxylase/oxygenase (anti-RuBPCO) exhibited high density of RuBPCO labelling in the stroma region of chloroplasts of the BSCs. Some anti-RuBPCO immunogold particles were observed in the stromal region of MSCs chloroplasts. The anti-activase (A) immunogold-labelling indicated that RuBPCOA was mainly distributed in the stroma region of both BSCs and MSCs chloroplasts. From the chloroplast ultrastructure and localisation of RuBPCO and RuBPCOA we deduced that the photosynthetic carbon reduction cycle and the formation of assimilatory power function in both MSC and BSC chloroplasts of A. tricolor.

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Section: Discussionmentioning

confidence: 57%

Leaf anatomy, chloroplast ultrastructure, and cellular localisation of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) and RuBPCO activase in Amaranthus tricolor L.

Hong¹,

Jiang²,

Weng³

et al. 2005

Photosynt.

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“…For salt tolerance, Monforte et al (1997) reported the existence of heterosis in tomato. With corn, chloroplast structure and dimension have been reported to show some extent of heterosis under chilling conditions although chilling tolerance per se was not reported with the lines examined (Kutík et al 2004). Furthermore, with tomato, there are many reports on heterosis on nutrition, growth and other agronomical characteristics (see a review by Makesh et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Chilling Tolerance and Field Performance of an F1 Cooking Tomato Cultivar, Nitaki-Koma, Relative to Its Parents

2006

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Chilling is one of the major environmental stresses for plants including tomato. A newly established F 1 hybrid cooking tomato cultivar, Lycopersicon esculentum Mill cv. Nitaki-Koma, has been recognized as a promising hybrid to satisfy consumers' demands in Japan. However, there are few reports on agronomical and physiological characteristics, which are necessary to increase its cultivation. Thus, we evaluated the responses of Nitaki-Koma to chilling temperatures as well as its agronomical characteristics in the field and compared the results with those of its parents. The maternal parent cultivar, Coudoulete (referred to as 'P1'), had some good agronomical characteristics, germinated faster, and was more tolerant to chilling temperatures than the paternal parent cultivar, Piline (referred to as 'P2'). P2 had, however, some desirable agronomical characteristics but germinated slowly under chilling conditions and was sensitive to chilling. The F 1 hybrid, Nitaki-Koma, showed the better-parent heterosis in some favorable characteristics, such as the number of clusters/plant, the total number of fruits/plant and the total fruit production/plant. It also showed the midparent heterosis in other characteristics, such as average fruit weight, plant height and chilling tolerance. Furthermore, seeds of F 1 germinated faster under chilling conditions than the paternal parent (P2). Therefore, F 1 was considered as a chilling tolerant tomato cultivar good for fruit production. These results further suggest the usefulness of tomato breeding for chilling tolerance by producing the F 1 hybrids by crossing chillingtolerant cultivars.

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“…Thus, there is genotypic variability to the chilling-induced ultrastructural damage and photosynthetic impairment in maize populations. Recently, Kutík et al (2004) reported that chilling-stressed hybrid maize plants showed positive heterosis in ultrastructural alterations of mesophyll chloroplasts, while, Jatimliansky et al (2004) gave evidence that hybrid (Zea mays Tripsacum dactyloides) plants have higher capacity to recover from chilling injury than their parents. This genotypic variability, which can also be observed in other chilling-sensitive species such as rice (Huang and Guo 2005), should be identified and exploited in breeding programs.…”

Section: Discussionmentioning

confidence: 99%

Ultrastructural alterations in mesophyll and bundle sheath chloroplasts of two maize cultivars in response to chilling at high irradiance

Saropulos¹,

Drennan²

2007

Biol. plant.

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Maize (Zea mays L.) seedlings of two cultivars (cv. Bastion adapted to W. Europe, and cv. Batan 8686 adapted to the highlands of Mexico), raised in a glasshouse (19 -25 °C), were transferred to 4.5 or 9 °C at photon flux density (PPFD) of 950 mol m -2 s -1 with 10-h photoperiod for 58 h and then allowed to recover at 22 °C for 16 h (14 h dark and 2 h at PPFD of 180 mol m -2 s -1 ). The ultrastructural responses after 4 h or 26 h at 4.5 °C were the disappearance of starch grains in the bundle sheath chloroplasts and the contraction of intrathylakoid spaces in stromal thylakoids of the mesophyll chloroplasts. At this time, bundle sheath chloroplasts of cv. Batan 8686 formed peripheral reticulum. Prolonged stress at 4.5 °C (50 h) caused plastid swelling and the dilation of intrathylakoid spaces, mainly in mesophyll chloroplasts. Bundle sheath chloroplasts of cv. Batan 8686 seedlings appeared well preserved in shape and structure. Batan 8686 had also higher net photosynthetic rates during chilling and recovery than Bastion. Extended leaf photobleaching developed during the recovery period after chilling at 4.5 °C. This was associated with collapsed chloroplast envelopes, disintegrated chloroplasts and very poor staining.

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Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F<sub>1</sub> Hybrids Grown Under Moderate Chilling Stress

Cited by 39 publications

References 27 publications

Leaf anatomy, chloroplast ultrastructure, and cellular localisation of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) and RuBPCO activase in Amaranthus tricolor L.

Leaf anatomy, chloroplast ultrastructure, and cellular localisation of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) and RuBPCO activase in Amaranthus tricolor L.

Chilling Tolerance and Field Performance of an F1 Cooking Tomato Cultivar, Nitaki-Koma, Relative to Its Parents

Ultrastructural alterations in mesophyll and bundle sheath chloroplasts of two maize cultivars in response to chilling at high irradiance

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